[INFO] fetching crate iterator-ext 0.2.1...
[INFO] checking iterator-ext-0.2.1 against master#4455c8937007f3cc3c078375a335d86dbab391ce for pr-140956
[INFO] extracting crate iterator-ext 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate iterator-ext 0.2.1
[INFO] finished tweaking crates.io crate iterator-ext 0.2.1
[INFO] tweaked toml for crates.io crate iterator-ext 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate iterator-ext 0.2.1 on toolchain 4455c8937007f3cc3c078375a335d86dbab391ce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "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" "+4455c8937007f3cc3c078375a335d86dbab391ce" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+4455c8937007f3cc3c078375a335d86dbab391ce" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1684504a76d915d42ee021d2bbbd4e9d4a652771c09ca2f3c2cd82afcb7e563
[INFO] running `Command { std: "docker" "start" "-a" "b1684504a76d915d42ee021d2bbbd4e9d4a652771c09ca2f3c2cd82afcb7e563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1684504a76d915d42ee021d2bbbd4e9d4a652771c09ca2f3c2cd82afcb7e563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1684504a76d915d42ee021d2bbbd4e9d4a652771c09ca2f3c2cd82afcb7e563", kill_on_drop: false }`
[INFO] [stdout] b1684504a76d915d42ee021d2bbbd4e9d4a652771c09ca2f3c2cd82afcb7e563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b90adeb82036fc9ca052f7dfbd189503f76d5847d44e485563754bdff915c65
[INFO] running `Command { std: "docker" "start" "-a" "8b90adeb82036fc9ca052f7dfbd189503f76d5847d44e485563754bdff915c65", kill_on_drop: false }`
[INFO] [stderr]     Checking iterator-ext v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "8b90adeb82036fc9ca052f7dfbd189503f76d5847d44e485563754bdff915c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b90adeb82036fc9ca052f7dfbd189503f76d5847d44e485563754bdff915c65", kill_on_drop: false }`
[INFO] [stdout] 8b90adeb82036fc9ca052f7dfbd189503f76d5847d44e485563754bdff915c65