[INFO] fetching crate algorithm-problem-client 0.6.0...
[INFO] building algorithm-problem-client-0.6.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate algorithm-problem-client 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] finished tweaking crates.io crate algorithm-problem-client 0.6.0
[INFO] tweaked toml for crates.io crate algorithm-problem-client 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate algorithm-problem-client 0.6.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 196 packages to latest compatible versions
[INFO] [stderr]       Adding scraper v0.12.0 (available: v0.24.0)
[INFO] [stderr]       Adding surf v1.0.3 (available: v2.3.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f4e67e7abf4deaa23cdc2792bd4b0d046c95b6ebfba64c3e8c16b50586375c
[INFO] running `Command { std: "docker" "start" "-a" "94f4e67e7abf4deaa23cdc2792bd4b0d046c95b6ebfba64c3e8c16b50586375c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f4e67e7abf4deaa23cdc2792bd4b0d046c95b6ebfba64c3e8c16b50586375c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f4e67e7abf4deaa23cdc2792bd4b0d046c95b6ebfba64c3e8c16b50586375c", kill_on_drop: false }`
[INFO] [stdout] 94f4e67e7abf4deaa23cdc2792bd4b0d046c95b6ebfba64c3e8c16b50586375c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26148389c75b84ec7258cd62799f49a5556e8746a8997dcbfcae34e3627748d5
[INFO] running `Command { std: "docker" "start" "-a" "26148389c75b84ec7258cd62799f49a5556e8746a8997dcbfcae34e3627748d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
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[INFO] [stderr]    Compiling scraper v0.12.0
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[INFO] [stderr]    Compiling algorithm-problem-client v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Problem` is never used
[INFO] [stdout]   --> src/util.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Problem {
[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 43s
[INFO] running `Command { std: "docker" "inspect" "26148389c75b84ec7258cd62799f49a5556e8746a8997dcbfcae34e3627748d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26148389c75b84ec7258cd62799f49a5556e8746a8997dcbfcae34e3627748d5", kill_on_drop: false }`
[INFO] [stdout] 26148389c75b84ec7258cd62799f49a5556e8746a8997dcbfcae34e3627748d5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ba19e17e4b834beefe42467840cca9481e3e7e65d40560a0316c3717c130322
[INFO] running `Command { std: "docker" "start" "-a" "7ba19e17e4b834beefe42467840cca9481e3e7e65d40560a0316c3717c130322", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithm-problem-client v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Problem` is never used
[INFO] [stdout]   --> src/util.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Problem {
[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 2.79s
[INFO] running `Command { std: "docker" "inspect" "7ba19e17e4b834beefe42467840cca9481e3e7e65d40560a0316c3717c130322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba19e17e4b834beefe42467840cca9481e3e7e65d40560a0316c3717c130322", kill_on_drop: false }`
[INFO] [stdout] 7ba19e17e4b834beefe42467840cca9481e3e7e65d40560a0316c3717c130322