[INFO] fetching crate isovariant 0.6.0...
[INFO] checking isovariant-0.6.0 against master#8f08b3a32478b8d0507732800ecb548a76e0fd0c for pr-144157
[INFO] extracting crate isovariant 0.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate isovariant 0.6.0
[INFO] finished tweaking crates.io crate isovariant 0.6.0
[INFO] tweaked toml for crates.io crate isovariant 0.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate isovariant 0.6.0 on toolchain 8f08b3a32478b8d0507732800ecb548a76e0fd0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "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" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5eca505f41faa00f106b2e8e98ed3eb7e46959f08929b8b65b7ce47be3a8602c
[INFO] running `Command { std: "docker" "start" "-a" "5eca505f41faa00f106b2e8e98ed3eb7e46959f08929b8b65b7ce47be3a8602c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5eca505f41faa00f106b2e8e98ed3eb7e46959f08929b8b65b7ce47be3a8602c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eca505f41faa00f106b2e8e98ed3eb7e46959f08929b8b65b7ce47be3a8602c", kill_on_drop: false }`
[INFO] [stdout] 5eca505f41faa00f106b2e8e98ed3eb7e46959f08929b8b65b7ce47be3a8602c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2d990018cbd5c2e509af93b72dd8bc100169ae388df8577ff32fe5b6572ec5b
[INFO] running `Command { std: "docker" "start" "-a" "e2d990018cbd5c2e509af93b72dd8bc100169ae388df8577ff32fe5b6572ec5b", kill_on_drop: false }`
[INFO] [stderr]     Checking isovariant v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "e2d990018cbd5c2e509af93b72dd8bc100169ae388df8577ff32fe5b6572ec5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d990018cbd5c2e509af93b72dd8bc100169ae388df8577ff32fe5b6572ec5b", kill_on_drop: false }`
[INFO] [stdout] e2d990018cbd5c2e509af93b72dd8bc100169ae388df8577ff32fe5b6572ec5b