[INFO] crate lamcal 0.4.0 is already in cache
[INFO] checking lamcal-0.4.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate lamcal 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lamcal 0.4.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lamcal 0.4.0
[INFO] finished tweaking crates.io crate lamcal 0.4.0
[INFO] tweaked toml for crates.io crate lamcal 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 98161ec51ee2ada0142651eec81451dc5fea5b6a8fd7c076e7e96709e70455fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "98161ec51ee2ada0142651eec81451dc5fea5b6a8fd7c076e7e96709e70455fe"`
[INFO] [stderr]     Checking lamcal v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking version-sync v0.5.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/reduction/mod.rs:734:25
[INFO] [stderr]     |
[INFO] [stderr] 734 |             if let Some(mut expand_with) = maybe_expand_with {
[INFO] [stderr]     |                         ----^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/reduction/mod.rs:734:25
[INFO] [stderr]     |
[INFO] [stderr] 734 |             if let Some(mut expand_with) = maybe_expand_with {
[INFO] [stderr]     |                         ----^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.42s
[INFO] running `"docker" "inspect" "98161ec51ee2ada0142651eec81451dc5fea5b6a8fd7c076e7e96709e70455fe"`
[INFO] running `"docker" "rm" "-f" "98161ec51ee2ada0142651eec81451dc5fea5b6a8fd7c076e7e96709e70455fe"`
[INFO] [stdout] 98161ec51ee2ada0142651eec81451dc5fea5b6a8fd7c076e7e96709e70455fe