[INFO] cloning repository https://github.com/mazurwiktor/rustgrepper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mazurwiktor/rustgrepper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 820b4335ee20c57726e7d46c9890a19cd4da6ce7
[INFO] checking mazurwiktor/rustgrepper against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazurwiktor%2Frustgrepper" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mazurwiktor/rustgrepper on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mazurwiktor/rustgrepper
[INFO] finished tweaking git repo https://github.com/mazurwiktor/rustgrepper
[INFO] tweaked toml for git repo https://github.com/mazurwiktor/rustgrepper written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mazurwiktor/rustgrepper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] 51f36cde6cd1b8876a3e54fad0b6bc9bddfc0567c581966042a4054771a4e797
[INFO] running `Command { std: "docker" "start" "-a" "51f36cde6cd1b8876a3e54fad0b6bc9bddfc0567c581966042a4054771a4e797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51f36cde6cd1b8876a3e54fad0b6bc9bddfc0567c581966042a4054771a4e797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f36cde6cd1b8876a3e54fad0b6bc9bddfc0567c581966042a4054771a4e797", kill_on_drop: false }`
[INFO] [stdout] 51f36cde6cd1b8876a3e54fad0b6bc9bddfc0567c581966042a4054771a4e797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cbb4f90ab53dc12f2fa67a378be326e9f62ba0b6f9f7c6d29808368aa367d22
[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" "7cbb4f90ab53dc12f2fa67a378be326e9f62ba0b6f9f7c6d29808368aa367d22", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling ncurses v5.85.0
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking rustgrepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "7cbb4f90ab53dc12f2fa67a378be326e9f62ba0b6f9f7c6d29808368aa367d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbb4f90ab53dc12f2fa67a378be326e9f62ba0b6f9f7c6d29808368aa367d22", kill_on_drop: false }`
[INFO] [stdout] 7cbb4f90ab53dc12f2fa67a378be326e9f62ba0b6f9f7c6d29808368aa367d22