[INFO] fetching crate sixarm_collections 1.1.1...
[INFO] checking sixarm_collections-1.1.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate sixarm_collections 1.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate sixarm_collections 1.1.1
[INFO] finished tweaking crates.io crate sixarm_collections 1.1.1
[INFO] tweaked toml for crates.io crate sixarm_collections 1.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sixarm_collections 1.1.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e07a294e68c3704b4b4b6d69ed47a7a4fcb85135e2eff7b3d137e83d300dccd6
[INFO] running `Command { std: "docker" "start" "-a" "e07a294e68c3704b4b4b6d69ed47a7a4fcb85135e2eff7b3d137e83d300dccd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07a294e68c3704b4b4b6d69ed47a7a4fcb85135e2eff7b3d137e83d300dccd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07a294e68c3704b4b4b6d69ed47a7a4fcb85135e2eff7b3d137e83d300dccd6", kill_on_drop: false }`
[INFO] [stdout] e07a294e68c3704b4b4b6d69ed47a7a4fcb85135e2eff7b3d137e83d300dccd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffc7ad8d85dc575eb01656934f3ce95fd7ec1999e3903bf3dc7a245256942af2
[INFO] running `Command { std: "docker" "start" "-a" "ffc7ad8d85dc575eb01656934f3ce95fd7ec1999e3903bf3dc7a245256942af2", kill_on_drop: false }`
[INFO] [stderr]     Checking sixarm_assert v1.1.1
[INFO] [stderr]     Checking sixarm_collections v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sixarm_assert::*`
[INFO] [stdout]    --> src/btree_map_of_file_len_to_set_of_path_buf.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     use sixarm_assert::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sixarm_assert::*`
[INFO] [stdout]    --> src/hash_map_of_file_len_to_set_of_path_buf.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     use sixarm_assert::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "ffc7ad8d85dc575eb01656934f3ce95fd7ec1999e3903bf3dc7a245256942af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc7ad8d85dc575eb01656934f3ce95fd7ec1999e3903bf3dc7a245256942af2", kill_on_drop: false }`
[INFO] [stdout] ffc7ad8d85dc575eb01656934f3ce95fd7ec1999e3903bf3dc7a245256942af2