[INFO] fetching crate algorithm-problem-client 0.6.0...
[INFO] building algorithm-problem-client-0.6.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate algorithm-problem-client 0.6.0 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate algorithm-problem-client 0.6.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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: v2.0.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_shared v0.8.0
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[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.11+1.64.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f1834a5a5cedad95f9573bb3eabf1f071e9537cbc3fdbb638ba5a2f9d9b4ae1
[INFO] running `Command { std: "docker" "start" "-a" "2f1834a5a5cedad95f9573bb3eabf1f071e9537cbc3fdbb638ba5a2f9d9b4ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f1834a5a5cedad95f9573bb3eabf1f071e9537cbc3fdbb638ba5a2f9d9b4ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1834a5a5cedad95f9573bb3eabf1f071e9537cbc3fdbb638ba5a2f9d9b4ae1", kill_on_drop: false }`
[INFO] [stdout] 2f1834a5a5cedad95f9573bb3eabf1f071e9537cbc3fdbb638ba5a2f9d9b4ae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08db7578cb6f05bc7a83a58dbd9ae45d2aba85244d5ba612831d4435470bcefc
[INFO] running `Command { std: "docker" "start" "-a" "08db7578cb6f05bc7a83a58dbd9ae45d2aba85244d5ba612831d4435470bcefc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling cfg-if v1.0.3
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[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling futures-executor v0.3.31
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[INFO] [stderr]    Compiling scraper v0.12.0
[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 40s
[INFO] running `Command { std: "docker" "inspect" "08db7578cb6f05bc7a83a58dbd9ae45d2aba85244d5ba612831d4435470bcefc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08db7578cb6f05bc7a83a58dbd9ae45d2aba85244d5ba612831d4435470bcefc", kill_on_drop: false }`
[INFO] [stdout] 08db7578cb6f05bc7a83a58dbd9ae45d2aba85244d5ba612831d4435470bcefc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8512d4a1631135b79f4601a4f2833be48f9d4ae745ff7cf7873a2891ccb612f4
[INFO] running `Command { std: "docker" "start" "-a" "8512d4a1631135b79f4601a4f2833be48f9d4ae745ff7cf7873a2891ccb612f4", 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 2.89s
[INFO] running `Command { std: "docker" "inspect" "8512d4a1631135b79f4601a4f2833be48f9d4ae745ff7cf7873a2891ccb612f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8512d4a1631135b79f4601a4f2833be48f9d4ae745ff7cf7873a2891ccb612f4", kill_on_drop: false }`
[INFO] [stdout] 8512d4a1631135b79f4601a4f2833be48f9d4ae745ff7cf7873a2891ccb612f4