[INFO] cloning repository https://github.com/Listray/line_adjustment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Listray/line_adjustment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FListray%2Fline_adjustment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FListray%2Fline_adjustment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53f563c2bf891d6fb4020b96ddc8193ba44891bd
[INFO] checking Listray/line_adjustment against try#b10dae361a61486cfbdcd3aae3877ee17e00d192 for pr-153912
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FListray%2Fline_adjustment" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Listray/line_adjustment
[INFO] finished tweaking git repo https://github.com/Listray/line_adjustment
[INFO] tweaked toml for git repo https://github.com/Listray/line_adjustment written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Listray/line_adjustment on toolchain b10dae361a61486cfbdcd3aae3877ee17e00d192
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Listray/line_adjustment 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" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36364801ef49a5678f372cd8fbd56db2945ed178d13b4a6320cc6fabcbdccebd
[INFO] running `Command { std: "docker" "start" "-a" "36364801ef49a5678f372cd8fbd56db2945ed178d13b4a6320cc6fabcbdccebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36364801ef49a5678f372cd8fbd56db2945ed178d13b4a6320cc6fabcbdccebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36364801ef49a5678f372cd8fbd56db2945ed178d13b4a6320cc6fabcbdccebd", kill_on_drop: false }`
[INFO] [stdout] 36364801ef49a5678f372cd8fbd56db2945ed178d13b4a6320cc6fabcbdccebd
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b10dae361a61486cfbdcd3aae3877ee17e00d192" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5786fbb1c2df5af097f7c672ca337e2c9677ca94861999e4a0a84de7d57954cf
[INFO] running `Command { std: "docker" "start" "-a" "5786fbb1c2df5af097f7c672ca337e2c9677ca94861999e4a0a84de7d57954cf", kill_on_drop: false }`
[INFO] [stderr]     Checking line_adjustment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `words_amount`
[INFO] [stdout]   --> src/lib.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let words_amount = i as i32 - last_word_added_idx - 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_words_amount`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `words_amount`
[INFO] [stdout]   --> src/lib.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let words_amount = i as i32 - last_word_added_idx - 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_words_amount`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "5786fbb1c2df5af097f7c672ca337e2c9677ca94861999e4a0a84de7d57954cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5786fbb1c2df5af097f7c672ca337e2c9677ca94861999e4a0a84de7d57954cf", kill_on_drop: false }`
[INFO] [stdout] 5786fbb1c2df5af097f7c672ca337e2c9677ca94861999e4a0a84de7d57954cf