[INFO] crate cargo-fel4 0.7.2 is already in cache
[INFO] checking cargo-fel4-0.7.2 against master#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] extracting crate cargo-fel4 0.7.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cargo-fel4 0.7.2 on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cargo-fel4 0.7.2
[INFO] finished tweaking crates.io crate cargo-fel4 0.7.2
[INFO] tweaked toml for crates.io crate cargo-fel4 0.7.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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] 14a913e15726601c172233f1677dfebe697ed0cc8412a6219fbae80b4afc5b70
[INFO] running `"docker" "start" "-a" "14a913e15726601c172233f1677dfebe697ed0cc8412a6219fbae80b4afc5b70"`
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking cc v1.0.47
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking proc-macro2 v0.3.8
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking cargo_metadata v0.5.8
[INFO] [stderr]     Checking quote v0.5.2
[INFO] [stderr]     Checking syn v0.13.11
[INFO] [stderr]     Checking cmake v0.1.42
[INFO] [stderr]     Checking fel4-config v0.3.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]     Checking cmake_config v0.1.1
[INFO] [stderr]     Checking cargo-fel4 v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.48s
[INFO] running `"docker" "inspect" "14a913e15726601c172233f1677dfebe697ed0cc8412a6219fbae80b4afc5b70"`
[INFO] running `"docker" "rm" "-f" "14a913e15726601c172233f1677dfebe697ed0cc8412a6219fbae80b4afc5b70"`
[INFO] [stdout] 14a913e15726601c172233f1677dfebe697ed0cc8412a6219fbae80b4afc5b70