[INFO] crate lamcal 0.4.0 is already in cache
[INFO] checking lamcal-0.4.0 against try#d93021f5faa26e4f9d2719e79f9974e06aa40e17 for pr-71873
[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 d93021f5faa26e4f9d2719e79f9974e06aa40e17
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "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" "+d93021f5faa26e4f9d2719e79f9974e06aa40e17" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d7357980b624266d1e754ad3f4d8a355ac96138832d0744388456dd4a61840a
[INFO] running `"docker" "start" "-a" "3d7357980b624266d1e754ad3f4d8a355ac96138832d0744388456dd4a61840a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking lamcal v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking syn v0.11.11
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking version-sync v0.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.71s
[INFO] running `"docker" "inspect" "3d7357980b624266d1e754ad3f4d8a355ac96138832d0744388456dd4a61840a"`
[INFO] running `"docker" "rm" "-f" "3d7357980b624266d1e754ad3f4d8a355ac96138832d0744388456dd4a61840a"`
[INFO] [stdout] 3d7357980b624266d1e754ad3f4d8a355ac96138832d0744388456dd4a61840a