[INFO] cloning repository https://github.com/courajs/mkchoice-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/courajs/mkchoice-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcourajs%2Fmkchoice-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcourajs%2Fmkchoice-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd197f89a0bad09cba50f5d8342b18f3ef1f5c5b
[INFO] checking courajs/mkchoice-rs against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcourajs%2Fmkchoice-rs" "/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/courajs/mkchoice-rs on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/courajs/mkchoice-rs
[INFO] finished tweaking git repo https://github.com/courajs/mkchoice-rs
[INFO] tweaked toml for git repo https://github.com/courajs/mkchoice-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/courajs/mkchoice-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6f0ef4b8c6d7d88a6e68a1c1c6c2453e5b948d7855f34596baf9cf208107513
[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" "a6f0ef4b8c6d7d88a6e68a1c1c6c2453e5b948d7855f34596baf9cf208107513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6f0ef4b8c6d7d88a6e68a1c1c6c2453e5b948d7855f34596baf9cf208107513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f0ef4b8c6d7d88a6e68a1c1c6c2453e5b948d7855f34596baf9cf208107513", kill_on_drop: false }`
[INFO] [stdout] a6f0ef4b8c6d7d88a6e68a1c1c6c2453e5b948d7855f34596baf9cf208107513
[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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 2dcb1028958194239712d055be74a02c240b8cb162bc9b616150e512d524abde
[INFO] running `Command { std: "docker" "start" "-a" "2dcb1028958194239712d055be74a02c240b8cb162bc9b616150e512d524abde", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking termion v1.5.5 (https://github.com/courajs/termion?branch=use-fds#e522a7a2)
[INFO] [stderr]     Checking mkchoice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "2dcb1028958194239712d055be74a02c240b8cb162bc9b616150e512d524abde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dcb1028958194239712d055be74a02c240b8cb162bc9b616150e512d524abde", kill_on_drop: false }`
[INFO] [stdout] 2dcb1028958194239712d055be74a02c240b8cb162bc9b616150e512d524abde