[INFO] cloning repository https://github.com/cc13446/too_many_lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cc13446/too_many_lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcc13446%2Ftoo_many_lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcc13446%2Ftoo_many_lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dde4e032afea089169d8020bf72f643710cb1bfb
[INFO] checking cc13446/too_many_lists/dde4e032afea089169d8020bf72f643710cb1bfb against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcc13446%2Ftoo_many_lists" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cc13446/too_many_lists on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cc13446/too_many_lists
[INFO] finished tweaking git repo https://github.com/cc13446/too_many_lists
[INFO] tweaked toml for git repo https://github.com/cc13446/too_many_lists written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cc13446/too_many_lists already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffec8ed9db96d76d73ab2bdcd0225cec59cda0a9ef66608f84cef2c53473d4ae
[INFO] running `Command { std: "docker" "start" "-a" "ffec8ed9db96d76d73ab2bdcd0225cec59cda0a9ef66608f84cef2c53473d4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffec8ed9db96d76d73ab2bdcd0225cec59cda0a9ef66608f84cef2c53473d4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffec8ed9db96d76d73ab2bdcd0225cec59cda0a9ef66608f84cef2c53473d4ae", kill_on_drop: false }`
[INFO] [stdout] ffec8ed9db96d76d73ab2bdcd0225cec59cda0a9ef66608f84cef2c53473d4ae
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d43ebb6b1165fd01b4a9e0080468e6ab013a240ceb63a41a10ffa1c08cf5a74c
[INFO] running `Command { std: "docker" "start" "-a" "d43ebb6b1165fd01b4a9e0080468e6ab013a240ceb63a41a10ffa1c08cf5a74c", kill_on_drop: false }`
[INFO] [stderr]     Checking too_many_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::first::List`
[INFO] [stdout]   --> src/first.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     use crate::first::List;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::second::List`
[INFO] [stdout]    --> src/second.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     use crate::second::List;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d43ebb6b1165fd01b4a9e0080468e6ab013a240ceb63a41a10ffa1c08cf5a74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d43ebb6b1165fd01b4a9e0080468e6ab013a240ceb63a41a10ffa1c08cf5a74c", kill_on_drop: false }`
[INFO] [stdout] d43ebb6b1165fd01b4a9e0080468e6ab013a240ceb63a41a10ffa1c08cf5a74c