[INFO] cloning repository https://github.com/racr-rust/racr-compose
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/racr-rust/racr-compose" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracr-compose"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracr-compose'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2fae7179bad6c87a74eaf220657b21b728a8b899
[INFO] checking racr-rust/racr-compose against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fracr-rust%2Fracr-compose" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/racr-rust/racr-compose on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/racr-rust/racr-compose
[INFO] finished tweaking git repo https://github.com/racr-rust/racr-compose
[INFO] tweaked toml for git repo https://github.com/racr-rust/racr-compose written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/racr-rust/racr-compose already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+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] ca51bfbd6b2ab60778a34d4b747431b5afc50ce29e8582c60681c3e0cdccb0bf
[INFO] running `"docker" "start" "-a" "ca51bfbd6b2ab60778a34d4b747431b5afc50ce29e8582c60681c3e0cdccb0bf"`
[INFO] [stderr]     Checking racr v0.1.0 (https://github.com/kjetilkjeka/racr-format.git?rev=df008cef8f77d59b16085a1b8fce7fe7bae4e21b#df008cef)
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking svd-parser v0.7.0 (https://github.com/japaric/svd.git#27257223)
[INFO] [stderr]     Checking racr-compose v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Arg`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Arg,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arg`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Arg,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.18s
[INFO] running `"docker" "inspect" "ca51bfbd6b2ab60778a34d4b747431b5afc50ce29e8582c60681c3e0cdccb0bf"`
[INFO] running `"docker" "rm" "-f" "ca51bfbd6b2ab60778a34d4b747431b5afc50ce29e8582c60681c3e0cdccb0bf"`
[INFO] [stdout] ca51bfbd6b2ab60778a34d4b747431b5afc50ce29e8582c60681c3e0cdccb0bf