[INFO] cloning repository https://github.com/stefanonucida/prova_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stefanonucida/prova_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefanonucida%2Fprova_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefanonucida%2Fprova_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3023bc1b1c028997d3391a154d1c1b4aa872f981
[INFO] checking stefanonucida/prova_rust against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefanonucida%2Fprova_rust" "/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/stefanonucida/prova_rust on toolchain f8c27dfe1a2e7fb538fd91dad53de06992c7c967
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stefanonucida/prova_rust
[INFO] finished tweaking git repo https://github.com/stefanonucida/prova_rust
[INFO] tweaked toml for git repo https://github.com/stefanonucida/prova_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/stefanonucida/prova_rust 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" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "fetch" "--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-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a02952c694491d70f5166b59ebd6a7bb7ebc000287f725d9454967bb31749b7
[INFO] running `Command { std: "docker" "start" "-a" "5a02952c694491d70f5166b59ebd6a7bb7ebc000287f725d9454967bb31749b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a02952c694491d70f5166b59ebd6a7bb7ebc000287f725d9454967bb31749b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a02952c694491d70f5166b59ebd6a7bb7ebc000287f725d9454967bb31749b7", kill_on_drop: false }`
[INFO] [stdout] 5a02952c694491d70f5166b59ebd6a7bb7ebc000287f725d9454967bb31749b7
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ec3459eed8b3e168b6b0b0834a58c478d5b4761aa507227f4c58401ab128e7a
[INFO] running `Command { std: "docker" "start" "-a" "2ec3459eed8b3e168b6b0b0834a58c478d5b4761aa507227f4c58401ab128e7a", kill_on_drop: false }`
[INFO] [stderr]     Checking prova_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "2ec3459eed8b3e168b6b0b0834a58c478d5b4761aa507227f4c58401ab128e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec3459eed8b3e168b6b0b0834a58c478d5b4761aa507227f4c58401ab128e7a", kill_on_drop: false }`
[INFO] [stdout] 2ec3459eed8b3e168b6b0b0834a58c478d5b4761aa507227f4c58401ab128e7a