[INFO] cloning repository https://github.com/rdrmic/color-columns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rdrmic/color-columns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdrmic%2Fcolor-columns", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 197a7a46ba314b93401a7882e764c85c844ec967
[INFO] checking rdrmic/color-columns against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdrmic%2Fcolor-columns" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rdrmic/color-columns
[INFO] finished tweaking git repo https://github.com/rdrmic/color-columns
[INFO] tweaked toml for git repo https://github.com/rdrmic/color-columns written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rdrmic/color-columns on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rdrmic/color-columns 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" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling color-columns v0.1.8 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |                     let mut playing_state_fragment =
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:223:21
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let mut instructions_fragment = &mut game_info_instructions.fragments_mut()[0];
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let mut playing_state_fragment = &mut game_info.playing_state.fragments_mut()[0];
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |                     let mut playing_state_fragment =
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:223:21
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let mut instructions_fragment = &mut game_info_instructions.fragments_mut()[0];
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/stages/playing/hud.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                 let mut playing_state_fragment = &mut game_info.playing_state.fragments_mut()[0];
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.02s
[INFO] running `Command { std: "docker" "inspect" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4", kill_on_drop: false }`
[INFO] [stdout] 71e6aa7cd0e78c78d0c59fc768bfa2b6a4b04eccb69ebac3564d12bccd05a9c4
