[INFO] fetching crate iolaus 0.1.7...
[INFO] checking iolaus-0.1.7 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate iolaus 0.1.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate iolaus 0.1.7 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate iolaus 0.1.7
[INFO] finished tweaking crates.io crate iolaus 0.1.7
[INFO] tweaked toml for crates.io crate iolaus 0.1.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] 76c4543bd1426d8afbc25ab64cbceb066bc23288caa9abed58809004e63bc3b7
[INFO] running `"docker" "start" "-a" "76c4543bd1426d8afbc25ab64cbceb066bc23288caa9abed58809004e63bc3b7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking pbr v1.0.3
[INFO] [stderr]     Checking iolaus v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut base_path = env::current_dir().expect("Erro #0001");
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut base_path = env::current_dir().expect("Erro #0001");
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `"docker" "inspect" "76c4543bd1426d8afbc25ab64cbceb066bc23288caa9abed58809004e63bc3b7"`
[INFO] running `"docker" "rm" "-f" "76c4543bd1426d8afbc25ab64cbceb066bc23288caa9abed58809004e63bc3b7"`
[INFO] [stdout] 76c4543bd1426d8afbc25ab64cbceb066bc23288caa9abed58809004e63bc3b7