[INFO] fetching crate whisker 0.1.0...
[INFO] checking whisker-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate whisker 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate whisker 0.1.0
[INFO] finished tweaking crates.io crate whisker 0.1.0
[INFO] tweaked toml for crates.io crate whisker 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate whisker 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate whisker 0.1.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 950d357222158fdd35c4b78e8f4e4495971d6b0b9a9c6ae701db5b41aa1306d5
[INFO] running `Command { std: "docker" "start" "-a" "950d357222158fdd35c4b78e8f4e4495971d6b0b9a9c6ae701db5b41aa1306d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950d357222158fdd35c4b78e8f4e4495971d6b0b9a9c6ae701db5b41aa1306d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950d357222158fdd35c4b78e8f4e4495971d6b0b9a9c6ae701db5b41aa1306d5", kill_on_drop: false }`
[INFO] [stdout] 950d357222158fdd35c4b78e8f4e4495971d6b0b9a9c6ae701db5b41aa1306d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d913baf309a4f75bd56e64020c3e2003d7c59a9c8c2e33343621b6b3cff733c1
[INFO] running `Command { std: "docker" "start" "-a" "d913baf309a4f75bd56e64020c3e2003d7c59a9c8c2e33343621b6b3cff733c1", kill_on_drop: false }`
[INFO] [stderr]     Checking whisker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "d913baf309a4f75bd56e64020c3e2003d7c59a9c8c2e33343621b6b3cff733c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d913baf309a4f75bd56e64020c3e2003d7c59a9c8c2e33343621b6b3cff733c1", kill_on_drop: false }`
[INFO] [stdout] d913baf309a4f75bd56e64020c3e2003d7c59a9c8c2e33343621b6b3cff733c1