[INFO] fetching crate arc-writer 0.2.1-alpha.1...
[INFO] checking arc-writer-0.2.1-alpha.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate arc-writer 0.2.1-alpha.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate arc-writer 0.2.1-alpha.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-writer 0.2.1-alpha.1
[INFO] finished tweaking crates.io crate arc-writer 0.2.1-alpha.1
[INFO] tweaked toml for crates.io crate arc-writer 0.2.1-alpha.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccd9d6a23727abfdeb2543ac6a7bff2bd43a5917f3aa9dd57c0083e40c7c5d3d
[INFO] running `Command { std: "docker" "start" "-a" "ccd9d6a23727abfdeb2543ac6a7bff2bd43a5917f3aa9dd57c0083e40c7c5d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccd9d6a23727abfdeb2543ac6a7bff2bd43a5917f3aa9dd57c0083e40c7c5d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd9d6a23727abfdeb2543ac6a7bff2bd43a5917f3aa9dd57c0083e40c7c5d3d", kill_on_drop: false }`
[INFO] [stdout] ccd9d6a23727abfdeb2543ac6a7bff2bd43a5917f3aa9dd57c0083e40c7c5d3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8a8a5d4a2689579f881f15228134aa724fe13e4558ceae86800e23d02db2e4c
[INFO] running `Command { std: "docker" "start" "-a" "b8a8a5d4a2689579f881f15228134aa724fe13e4558ceae86800e23d02db2e4c", kill_on_drop: false }`
[INFO] [stderr]     Checking arc-writer v0.2.1-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "b8a8a5d4a2689579f881f15228134aa724fe13e4558ceae86800e23d02db2e4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a8a5d4a2689579f881f15228134aa724fe13e4558ceae86800e23d02db2e4c", kill_on_drop: false }`
[INFO] [stdout] b8a8a5d4a2689579f881f15228134aa724fe13e4558ceae86800e23d02db2e4c
