[INFO] fetching crate port-pulse 0.4.0...
[INFO] building port-pulse-0.4.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate port-pulse 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate port-pulse 0.4.0
[INFO] finished tweaking crates.io crate port-pulse 0.4.0
[INFO] tweaked toml for crates.io crate port-pulse 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate port-pulse 0.4.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate port-pulse 0.4.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 769f2f1bce8d3161c69493182ab9557cb12b2045ac267f74a165bc9cf7fa7e38
[INFO] running `Command { std: "docker" "start" "-a" "769f2f1bce8d3161c69493182ab9557cb12b2045ac267f74a165bc9cf7fa7e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "769f2f1bce8d3161c69493182ab9557cb12b2045ac267f74a165bc9cf7fa7e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769f2f1bce8d3161c69493182ab9557cb12b2045ac267f74a165bc9cf7fa7e38", kill_on_drop: false }`
[INFO] [stdout] 769f2f1bce8d3161c69493182ab9557cb12b2045ac267f74a165bc9cf7fa7e38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1ba9a50e319671c77da7f749d05609b87738880bcbd950772799cc8f9b218a5
[INFO] running `Command { std: "docker" "start" "-a" "a1ba9a50e319671c77da7f749d05609b87738880bcbd950772799cc8f9b218a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling port-pulse v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `flag` is never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Arguments {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 11 |     flag: String,   
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "a1ba9a50e319671c77da7f749d05609b87738880bcbd950772799cc8f9b218a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ba9a50e319671c77da7f749d05609b87738880bcbd950772799cc8f9b218a5", kill_on_drop: false }`
[INFO] [stdout] a1ba9a50e319671c77da7f749d05609b87738880bcbd950772799cc8f9b218a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fffa2a8cdd718aaf8d3d573eeb51e5714fcd8bb79cdd6c037664d8fea886552
[INFO] running `Command { std: "docker" "start" "-a" "5fffa2a8cdd718aaf8d3d573eeb51e5714fcd8bb79cdd6c037664d8fea886552", kill_on_drop: false }`
[INFO] [stderr]    Compiling port-pulse v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `flag` is never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Arguments {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 11 |     flag: String,   
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "5fffa2a8cdd718aaf8d3d573eeb51e5714fcd8bb79cdd6c037664d8fea886552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fffa2a8cdd718aaf8d3d573eeb51e5714fcd8bb79cdd6c037664d8fea886552", kill_on_drop: false }`
[INFO] [stdout] 5fffa2a8cdd718aaf8d3d573eeb51e5714fcd8bb79cdd6c037664d8fea886552