[INFO] fetching crate mustermann 12.0.0...
[INFO] building mustermann-12.0.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate mustermann 12.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mustermann 12.0.0
[INFO] finished tweaking crates.io crate mustermann 12.0.0
[INFO] tweaked toml for crates.io crate mustermann 12.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mustermann 12.0.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mustermann 12.0.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opentelemetry-http v0.29.0
[INFO] [stderr]   Downloaded opentelemetry-appender-tracing v0.29.1
[INFO] [stderr]   Downloaded dummy v0.9.2
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[INFO] [stderr]   Downloaded papergrid v0.14.0
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.29.0
[INFO] [stderr]   Downloaded tabled v0.18.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.29.0
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[INFO] [stderr]   Downloaded rand_core v0.9.2
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[INFO] [stderr]   Downloaded zerocopy-derive v0.8.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3cc1b2a1dfe887caee18685b8bd43a19528f462abb9e8c8644eee0008a0d2dd
[INFO] running `Command { std: "docker" "start" "-a" "f3cc1b2a1dfe887caee18685b8bd43a19528f462abb9e8c8644eee0008a0d2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3cc1b2a1dfe887caee18685b8bd43a19528f462abb9e8c8644eee0008a0d2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3cc1b2a1dfe887caee18685b8bd43a19528f462abb9e8c8644eee0008a0d2dd", kill_on_drop: false }`
[INFO] [stdout] f3cc1b2a1dfe887caee18685b8bd43a19528f462abb9e8c8644eee0008a0d2dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f6dde42a63725712e584a0673882d0c1496e9ff57ad329dcc4aa0bc2eafb49
[INFO] running `Command { std: "docker" "start" "-a" "73f6dde42a63725712e584a0673882d0c1496e9ff57ad329dcc4aa0bc2eafb49", kill_on_drop: false }`
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[INFO] [stderr]    Compiling mustermann v12.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MetadataMap` is never constructed
[INFO] [stdout]  --> src/metadata_map.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MetadataMap<'a>(&'a mut HashMap<String, 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 1m 04s
[INFO] running `Command { std: "docker" "inspect" "73f6dde42a63725712e584a0673882d0c1496e9ff57ad329dcc4aa0bc2eafb49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f6dde42a63725712e584a0673882d0c1496e9ff57ad329dcc4aa0bc2eafb49", kill_on_drop: false }`
[INFO] [stdout] 73f6dde42a63725712e584a0673882d0c1496e9ff57ad329dcc4aa0bc2eafb49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ca1f60b588b9e6730c2e434119e3a433574fc5079e1618494df8dbc18b42ac2
[INFO] running `Command { std: "docker" "start" "-a" "2ca1f60b588b9e6730c2e434119e3a433574fc5079e1618494df8dbc18b42ac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling mustermann v12.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MetadataMap` is never constructed
[INFO] [stdout]  --> src/metadata_map.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MetadataMap<'a>(&'a mut HashMap<String, 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 3.83s
[INFO] running `Command { std: "docker" "inspect" "2ca1f60b588b9e6730c2e434119e3a433574fc5079e1618494df8dbc18b42ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca1f60b588b9e6730c2e434119e3a433574fc5079e1618494df8dbc18b42ac2", kill_on_drop: false }`
[INFO] [stdout] 2ca1f60b588b9e6730c2e434119e3a433574fc5079e1618494df8dbc18b42ac2