diff --git a/Cargo.lock b/Cargo.lock
index 1ffe78ce..09cc3aa9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2841,6 +2841,12 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-integer"
 version = "0.1.45"
@@ -3963,13 +3969,14 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.30"
+version = "0.3.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4a34ab300f2dee6e562c10a046fc05e358b29f9bf92277f30c3c8d82275f6f5"
+checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
 dependencies = [
  "deranged",
  "itoa",
  "libc",
+ "num-conv",
  "num_threads",
  "powerfmt",
  "serde",
@@ -3985,10 +3992,11 @@ checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
 
 [[package]]
 name = "time-macros"
-version = "0.2.15"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ad70d68dba9e1f8aceda7aa6711965dfec1cac869f311a51bd08b3a2ccbce20"
+checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
 dependencies = [
+ "num-conv",
  "time-core",
 ]
 
diff --git a/config.toml b/config.toml
index efed0167..0e1963e8 100644
--- a/config.toml
+++ b/config.toml
@@ -64,12 +64,14 @@ fe_session = { skip-tests = true } # flaky test
 feed = { skip-tests = true } # flaky test
 fftw = { slow = true } # build time close to 2 minutes
 fine_grained = { skip-tests = true } # flaky tests
+gaffer = { skip-tests = true } # flaky tests (timing-dependent)
 gcc = { skip-tests = true } # flaky test
 gear = { skip = true } # flaky build
 geocode = { skip-tests = true } # depends on network
 glib = { slow = true } # tests slow to run
 guerrilla = { skip-tests = true } # flaky tests
 hashconsing = { skip-tests = true } # flaky test
+hopscotch = { skip-tests = true } # flaky tests (quickcheck + inconsistent ords)
 hyperdav = { skip-tests = true } # relies on an external service
 idx = { skip-tests = true } # depends on filesystem
 image-stream = { skip-tests = true } # depends on network
@@ -117,6 +119,7 @@ treeflection = { skip-tests = true } # flaky test
 update_rate = { skip-tests = true } # flaky tests
 urdf-viz = { skip = true } # flaky build
 vidar = { skip-tests = true } # flaky test
+workpool = { skip-tests = true } # flaky tests (timing + thread::sleep in pool::collect_into_vec tests)
 carboxyl_time = { skip-tests = true } # flaky test (timing)
 cobalt = { skip-tests = true } # flaky test (timing)
 conduit-hyper = { skip-tests = true } # flaky test (timing)
@@ -165,6 +168,7 @@ rustc_get_version = { skip = true } # does not build on beta
 "fromheten/plato" = { skip-tests = true } # flaky tests
 "jafow/pals" = { skip-tests = true } # flaky tests
 "johnedmonds/chance" = { skip-tests = true } # flaky tests
+"lht102/coding-problems-practice" = { skip-tests = true } # version-dependent tests (sort_unstable_by ordering)
 "LukeMathWalker/tracing-bunyan-formatter" = { skip-tests = true } # flaky tests
 "nilsmartel/act" = { skip-tests = true } # flaky tests
 "nt-ca-aqe/kitchen-kata-async-rust" = { skip-tests = true } # flaky tests
diff --git a/src/utils/disk_usage.rs b/src/utils/disk_usage.rs
index 2ea4a491..6ee03257 100644
--- a/src/utils/disk_usage.rs
+++ b/src/utils/disk_usage.rs
@@ -38,7 +38,7 @@ fn current_mount() -> Fallible<Filesystem> {
     let system = System::new();
 
     let mut found = None;
-    let mut found_pos = std::usize::MAX;
+    let mut found_pos = usize::MAX;
     for mount in system.mounts()?.into_iter() {
         let path = Path::new(&mount.fs_mounted_on);
         for (i, ancestor) in current_dir.ancestors().enumerate() {