[INFO] cloning repository https://github.com/matthiaskrgr/rust-str-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthiaskrgr/rust-str-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Frust-str-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Frust-str-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a937bf3cdc92f81644a5f3259540c56554dba115
[INFO] checking matthiaskrgr/rust-str-bench against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Frust-str-bench" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthiaskrgr/rust-str-bench on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matthiaskrgr/rust-str-bench
[INFO] finished tweaking git repo https://github.com/matthiaskrgr/rust-str-bench
[INFO] tweaked toml for git repo https://github.com/matthiaskrgr/rust-str-bench written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/matthiaskrgr/rust-str-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c745a1380d4e18acb7d7efcef14151a7f829d44a2a7a9ce332df38081b4fd526
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c745a1380d4e18acb7d7efcef14151a7f829d44a2a7a9ce332df38081b4fd526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c745a1380d4e18acb7d7efcef14151a7f829d44a2a7a9ce332df38081b4fd526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c745a1380d4e18acb7d7efcef14151a7f829d44a2a7a9ce332df38081b4fd526", kill_on_drop: false }`
[INFO] [stdout] c745a1380d4e18acb7d7efcef14151a7f829d44a2a7a9ce332df38081b4fd526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4fdfe1ecec0dd248717f813b34b3f088574a8aa87ad6b33c0526d15e5075de7f
[INFO] running `Command { std: "docker" "start" "-a" "4fdfe1ecec0dd248717f813b34b3f088574a8aa87ad6b33c0526d15e5075de7f", kill_on_drop: false }`
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking str_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "4fdfe1ecec0dd248717f813b34b3f088574a8aa87ad6b33c0526d15e5075de7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fdfe1ecec0dd248717f813b34b3f088574a8aa87ad6b33c0526d15e5075de7f", kill_on_drop: false }`
[INFO] [stdout] 4fdfe1ecec0dd248717f813b34b3f088574a8aa87ad6b33c0526d15e5075de7f