[INFO] fetching crate trees 0.4.2...
[INFO] checking trees-0.4.2 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate trees 0.4.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate trees 0.4.2 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trees 0.4.2
[INFO] finished tweaking crates.io crate trees 0.4.2
[INFO] tweaked toml for crates.io crate trees 0.4.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "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" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d75ee2e8573833c7d8ff1be3ec87ec3bc34c36be45962a6e706212e0799e590
[INFO] running `Command { std: "docker" "start" "-a" "2d75ee2e8573833c7d8ff1be3ec87ec3bc34c36be45962a6e706212e0799e590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d75ee2e8573833c7d8ff1be3ec87ec3bc34c36be45962a6e706212e0799e590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d75ee2e8573833c7d8ff1be3ec87ec3bc34c36be45962a6e706212e0799e590", kill_on_drop: false }`
[INFO] [stdout] 2d75ee2e8573833c7d8ff1be3ec87ec3bc34c36be45962a6e706212e0799e590
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 217d2ffad1716b051f9230fd081bd870ac09043f92d25eee90b8a967c28c6cee
[INFO] running `Command { std: "docker" "start" "-a" "217d2ffad1716b051f9230fd081bd870ac09043f92d25eee90b8a967c28c6cee", kill_on_drop: false }`
[INFO] [stderr]     Checking trees v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/node_vec.rs:76:39
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let offset = offsets[ (depth-1) ] + Tuple::descendants( depth-2 );
[INFO] [stdout]    |                                       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -                 let offset = offsets[ (depth-1) ] + Tuple::descendants( depth-2 );
[INFO] [stdout] 76 +                 let offset = offsets[ depth-1 ] + Tuple::descendants( depth-2 );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/node_vec.rs:76:39
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 let offset = offsets[ (depth-1) ] + Tuple::descendants( depth-2 );
[INFO] [stdout]    |                                       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -                 let offset = offsets[ (depth-1) ] + Tuple::descendants( depth-2 );
[INFO] [stdout] 76 +                 let offset = offsets[ depth-1 ] + Tuple::descendants( depth-2 );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "217d2ffad1716b051f9230fd081bd870ac09043f92d25eee90b8a967c28c6cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "217d2ffad1716b051f9230fd081bd870ac09043f92d25eee90b8a967c28c6cee", kill_on_drop: false }`
[INFO] [stdout] 217d2ffad1716b051f9230fd081bd870ac09043f92d25eee90b8a967c28c6cee
[INFO] checking trees-0.4.2 against try#9ae1860851f3fbc1435a1698e572252c0076f413 for pr-122960-1
[INFO] extracting crate trees 0.4.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate trees 0.4.2 on toolchain 9ae1860851f3fbc1435a1698e572252c0076f413
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trees 0.4.2
[INFO] finished tweaking crates.io crate trees 0.4.2
[INFO] tweaked toml for crates.io crate trees 0.4.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "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" "+9ae1860851f3fbc1435a1698e572252c0076f413" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae65b6f55b7fe7d009ac0ca11d5315860da3dac7ae70da7339ae4f6820e92e7a
[INFO] running `Command { std: "docker" "start" "-a" "ae65b6f55b7fe7d009ac0ca11d5315860da3dac7ae70da7339ae4f6820e92e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae65b6f55b7fe7d009ac0ca11d5315860da3dac7ae70da7339ae4f6820e92e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae65b6f55b7fe7d009ac0ca11d5315860da3dac7ae70da7339ae4f6820e92e7a", kill_on_drop: false }`
[INFO] [stdout] ae65b6f55b7fe7d009ac0ca11d5315860da3dac7ae70da7339ae4f6820e92e7a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4f87d1b0d4ff15935e940bf8842fc553e05ba04a0768dedefa283678a4c61eb
[INFO] running `Command { std: "docker" "start" "-a" "d4f87d1b0d4ff15935e940bf8842fc553e05ba04a0768dedefa283678a4c61eb", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "d4f87d1b0d4ff15935e940bf8842fc553e05ba04a0768dedefa283678a4c61eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f87d1b0d4ff15935e940bf8842fc553e05ba04a0768dedefa283678a4c61eb", kill_on_drop: false }`
[INFO] [stdout] d4f87d1b0d4ff15935e940bf8842fc553e05ba04a0768dedefa283678a4c61eb