[INFO] cloning repository https://github.com/mandober/rust-maybe-type
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mandober/rust-maybe-type" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmandober%2Frust-maybe-type", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmandober%2Frust-maybe-type'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a30396b6d4105cda4807018011c782afe17ebbd
[INFO] checking mandober/rust-maybe-type/4a30396b6d4105cda4807018011c782afe17ebbd against master#6a9758d4f38d4763bd437c48fa7e5246cecf8d04 for pr-124355
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmandober%2Frust-maybe-type" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mandober/rust-maybe-type on toolchain 6a9758d4f38d4763bd437c48fa7e5246cecf8d04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mandober/rust-maybe-type
[INFO] finished tweaking git repo https://github.com/mandober/rust-maybe-type
[INFO] tweaked toml for git repo https://github.com/mandober/rust-maybe-type written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mandober/rust-maybe-type already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 422c9f1eb8edbc924940780a7848d6c30ccaef36b57869ac9c8a6bf869dceef7
[INFO] running `Command { std: "docker" "start" "-a" "422c9f1eb8edbc924940780a7848d6c30ccaef36b57869ac9c8a6bf869dceef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "422c9f1eb8edbc924940780a7848d6c30ccaef36b57869ac9c8a6bf869dceef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422c9f1eb8edbc924940780a7848d6c30ccaef36b57869ac9c8a6bf869dceef7", kill_on_drop: false }`
[INFO] [stdout] 422c9f1eb8edbc924940780a7848d6c30ccaef36b57869ac9c8a6bf869dceef7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc3762b269bd46627c88c161469d94375d4e000fe71e2257dc30b927cf29c49
[INFO] running `Command { std: "docker" "start" "-a" "cdc3762b269bd46627c88c161469d94375d4e000fe71e2257dc30b927cf29c49", kill_on_drop: false }`
[INFO] [stderr]     Checking maybe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "cdc3762b269bd46627c88c161469d94375d4e000fe71e2257dc30b927cf29c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc3762b269bd46627c88c161469d94375d4e000fe71e2257dc30b927cf29c49", kill_on_drop: false }`
[INFO] [stdout] cdc3762b269bd46627c88c161469d94375d4e000fe71e2257dc30b927cf29c49