[INFO] fetching crate ignore 0.4.10...
[INFO] checking ignore-0.4.10 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate ignore 0.4.10 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ignore 0.4.10 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ignore 0.4.10
[INFO] finished tweaking crates.io crate ignore 0.4.10
[INFO] tweaked toml for crates.io crate ignore 0.4.10 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ignore 0.4.10 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 9d554cee6a48d67e6ae235f4071fca3088e0af0b682e5f29fa0e8b9a7246942e
[INFO] running `"docker" "start" "-a" "9d554cee6a48d67e6ae235f4071fca3088e0af0b682e5f29fa0e8b9a7246942e"`
[INFO] [stderr]     Checking bstr v0.2.6
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking ignore v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `prefix`
[INFO] [stderr]    --> src/dir.rs:745:15
[INFO] [stderr]     |
[INFO] [stderr] 745 |     fn tmpdir(prefix: &str) -> TempDir {
[INFO] [stderr]     |               ^^^^^^ help: consider prefixing with an underscore: `_prefix`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prefix`
[INFO] [stderr]     --> src/walk.rs:1819:15
[INFO] [stderr]      |
[INFO] [stderr] 1819 |     fn tmpdir(prefix: &str) -> TempDir {
[INFO] [stderr]      |               ^^^^^^ help: consider prefixing with an underscore: `_prefix`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `"docker" "inspect" "9d554cee6a48d67e6ae235f4071fca3088e0af0b682e5f29fa0e8b9a7246942e"`
[INFO] running `"docker" "rm" "-f" "9d554cee6a48d67e6ae235f4071fca3088e0af0b682e5f29fa0e8b9a7246942e"`
[INFO] [stdout] 9d554cee6a48d67e6ae235f4071fca3088e0af0b682e5f29fa0e8b9a7246942e