[INFO] cloning repository https://github.com/AndreiKazakov/um
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndreiKazakov/um" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Fum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Fum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ef154187e61099ca73fd0df532da9281d9724ad
[INFO] checking AndreiKazakov/um against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Fum" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AndreiKazakov/um
[INFO] finished tweaking git repo https://github.com/AndreiKazakov/um
[INFO] tweaked toml for git repo https://github.com/AndreiKazakov/um written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AndreiKazakov/um on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AndreiKazakov/um 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a8ab5dfec7acb9b66987778d7d99a9465886d1d8052e7298225644075b9c62e
[INFO] running `Command { std: "docker" "start" "-a" "4a8ab5dfec7acb9b66987778d7d99a9465886d1d8052e7298225644075b9c62e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a8ab5dfec7acb9b66987778d7d99a9465886d1d8052e7298225644075b9c62e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8ab5dfec7acb9b66987778d7d99a9465886d1d8052e7298225644075b9c62e", kill_on_drop: false }`
[INFO] [stdout] 4a8ab5dfec7acb9b66987778d7d99a9465886d1d8052e7298225644075b9c62e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a3a525d7d5c4d5d43ac7e7dc91c2ca58ca1d34585ca992737c58bf9b5d2eda7
[INFO] running `Command { std: "docker" "start" "-a" "2a3a525d7d5c4d5d43ac7e7dc91c2ca58ca1d34585ca992737c58bf9b5d2eda7", kill_on_drop: false }`
[INFO] [stderr]     Checking um32 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:119:16
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct UMError(String);
[INFO] [stdout]     |        ------- ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `UMError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:119:16
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct UMError(String);
[INFO] [stdout]     |        ------- ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `UMError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "2a3a525d7d5c4d5d43ac7e7dc91c2ca58ca1d34585ca992737c58bf9b5d2eda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3a525d7d5c4d5d43ac7e7dc91c2ca58ca1d34585ca992737c58bf9b5d2eda7", kill_on_drop: false }`
[INFO] [stdout] 2a3a525d7d5c4d5d43ac7e7dc91c2ca58ca1d34585ca992737c58bf9b5d2eda7
