[INFO] fetching crate rubber-stamp 0.1.0...
[INFO] building rubber-stamp-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rubber-stamp 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rubber-stamp 0.1.0
[INFO] finished tweaking crates.io crate rubber-stamp 0.1.0
[INFO] tweaked toml for crates.io crate rubber-stamp 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rubber-stamp 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99cb387a02cd10bcc1cf8e336c38fcbf2e1849157db6e0502e4a987313a86527
[INFO] running `Command { std: "docker" "start" "-a" "99cb387a02cd10bcc1cf8e336c38fcbf2e1849157db6e0502e4a987313a86527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99cb387a02cd10bcc1cf8e336c38fcbf2e1849157db6e0502e4a987313a86527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cb387a02cd10bcc1cf8e336c38fcbf2e1849157db6e0502e4a987313a86527", kill_on_drop: false }`
[INFO] [stdout] 99cb387a02cd10bcc1cf8e336c38fcbf2e1849157db6e0502e4a987313a86527
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e686208119b81a756b22b6ef7adfdb276284b50a51f0f577a31fc01b906d99ed
[INFO] running `Command { std: "docker" "start" "-a" "e686208119b81a756b22b6ef7adfdb276284b50a51f0f577a31fc01b906d99ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubber-stamp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "e686208119b81a756b22b6ef7adfdb276284b50a51f0f577a31fc01b906d99ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e686208119b81a756b22b6ef7adfdb276284b50a51f0f577a31fc01b906d99ed", kill_on_drop: false }`
[INFO] [stdout] e686208119b81a756b22b6ef7adfdb276284b50a51f0f577a31fc01b906d99ed
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2d06cbb974e3bf02fd28310bc9beaa1a10906a6d1d22dc3462e2e02a52d9aed
[INFO] running `Command { std: "docker" "start" "-a" "d2d06cbb974e3bf02fd28310bc9beaa1a10906a6d1d22dc3462e2e02a52d9aed", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubber-stamp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "d2d06cbb974e3bf02fd28310bc9beaa1a10906a6d1d22dc3462e2e02a52d9aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d06cbb974e3bf02fd28310bc9beaa1a10906a6d1d22dc3462e2e02a52d9aed", kill_on_drop: false }`
[INFO] [stdout] d2d06cbb974e3bf02fd28310bc9beaa1a10906a6d1d22dc3462e2e02a52d9aed