[INFO] fetching crate more-itertools 0.1.6...
[INFO] building more-itertools-0.1.6 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate more-itertools 0.1.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate more-itertools 0.1.6
[INFO] finished tweaking crates.io crate more-itertools 0.1.6
[INFO] tweaked toml for crates.io crate more-itertools 0.1.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate more-itertools 0.1.6 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d2c3bddb465b728a5c994fbc22abae822ce6f861d8e3b6dc9ad318510d1c664
[INFO] running `Command { std: "docker" "start" "-a" "3d2c3bddb465b728a5c994fbc22abae822ce6f861d8e3b6dc9ad318510d1c664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d2c3bddb465b728a5c994fbc22abae822ce6f861d8e3b6dc9ad318510d1c664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2c3bddb465b728a5c994fbc22abae822ce6f861d8e3b6dc9ad318510d1c664", kill_on_drop: false }`
[INFO] [stdout] 3d2c3bddb465b728a5c994fbc22abae822ce6f861d8e3b6dc9ad318510d1c664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8bf089f0a6dfd0486e4fba19374ce17ff732ae1d08b8c5ce6407647262b4def
[INFO] running `Command { std: "docker" "start" "-a" "a8bf089f0a6dfd0486e4fba19374ce17ff732ae1d08b8c5ce6407647262b4def", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-itertools v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sum`
[INFO] [stdout]   --> src/itertools/sum.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub(crate) use sum;
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout]  1 | #![warn(unused_imports)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "a8bf089f0a6dfd0486e4fba19374ce17ff732ae1d08b8c5ce6407647262b4def", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8bf089f0a6dfd0486e4fba19374ce17ff732ae1d08b8c5ce6407647262b4def", kill_on_drop: false }`
[INFO] [stdout] a8bf089f0a6dfd0486e4fba19374ce17ff732ae1d08b8c5ce6407647262b4def
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 476db6bf040ac32b0cb0c5c73099a776f71d3c3c7abc0424e7fd2040c43122d4
[INFO] running `Command { std: "docker" "start" "-a" "476db6bf040ac32b0cb0c5c73099a776f71d3c3c7abc0424e7fd2040c43122d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-itertools v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sum`
[INFO] [stdout]   --> src/itertools/sum.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub(crate) use sum;
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout]  1 | #![warn(unused_imports)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "476db6bf040ac32b0cb0c5c73099a776f71d3c3c7abc0424e7fd2040c43122d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476db6bf040ac32b0cb0c5c73099a776f71d3c3c7abc0424e7fd2040c43122d4", kill_on_drop: false }`
[INFO] [stdout] 476db6bf040ac32b0cb0c5c73099a776f71d3c3c7abc0424e7fd2040c43122d4