[INFO] crate grex 0.2.0 is already in cache
[INFO] checking grex-0.2.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate grex 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate grex 0.2.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate grex 0.2.0
[INFO] finished tweaking crates.io crate grex 0.2.0
[INFO] tweaked toml for crates.io crate grex 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate grex 0.2.0 already has a lockfile, it will not be regenerated
[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] b13d6165c366012084ed0a15bbc5303a2c49d844574ecffadf550a4ff6aa8f04
[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" "b13d6165c366012084ed0a15bbc5303a2c49d844574ecffadf550a4ff6aa8f04"`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking linked-list v0.0.3
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking structopt v0.3.3
[INFO] [stderr]     Checking grex v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `assert_no_match`
[INFO] [stderr]    --> src/main.rs:259:8
[INFO] [stderr]     |
[INFO] [stderr] 259 |     fn assert_no_match(re: &Regex, text: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.71s
[INFO] running `"docker" "inspect" "b13d6165c366012084ed0a15bbc5303a2c49d844574ecffadf550a4ff6aa8f04"`
[INFO] running `"docker" "rm" "-f" "b13d6165c366012084ed0a15bbc5303a2c49d844574ecffadf550a4ff6aa8f04"`
[INFO] [stdout] b13d6165c366012084ed0a15bbc5303a2c49d844574ecffadf550a4ff6aa8f04