[INFO] fetching crate rust_learner_j 0.1.0...
[INFO] testing rust_learner_j-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust_learner_j 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rust_learner_j 0.1.0
[INFO] finished tweaking crates.io crate rust_learner_j 0.1.0
[INFO] tweaked toml for crates.io crate rust_learner_j 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_learner_j 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_learner_j 0.1.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84dde15b10017a96d475e04400fef4396834ca3955c46256f1373318466e3bca
[INFO] running `Command { std: "docker" "start" "-a" "84dde15b10017a96d475e04400fef4396834ca3955c46256f1373318466e3bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84dde15b10017a96d475e04400fef4396834ca3955c46256f1373318466e3bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84dde15b10017a96d475e04400fef4396834ca3955c46256f1373318466e3bca", kill_on_drop: false }`
[INFO] [stdout] 84dde15b10017a96d475e04400fef4396834ca3955c46256f1373318466e3bca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0801856585c75b42150e7d727fc565492a6c980831ef593e27ef659d53a86e1e
[INFO] running `Command { std: "docker" "start" "-a" "0801856585c75b42150e7d727fc565492a6c980831ef593e27ef659d53a86e1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learner_j v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "0801856585c75b42150e7d727fc565492a6c980831ef593e27ef659d53a86e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0801856585c75b42150e7d727fc565492a6c980831ef593e27ef659d53a86e1e", kill_on_drop: false }`
[INFO] [stdout] 0801856585c75b42150e7d727fc565492a6c980831ef593e27ef659d53a86e1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 300c10f774b782842223477dff6d57a4247b22343fb7c502f3e169f2ffa9b86d
[INFO] running `Command { std: "docker" "start" "-a" "300c10f774b782842223477dff6d57a4247b22343fb7c502f3e169f2ffa9b86d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learner_j v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "300c10f774b782842223477dff6d57a4247b22343fb7c502f3e169f2ffa9b86d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300c10f774b782842223477dff6d57a4247b22343fb7c502f3e169f2ffa9b86d", kill_on_drop: false }`
[INFO] [stdout] 300c10f774b782842223477dff6d57a4247b22343fb7c502f3e169f2ffa9b86d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0287c10c395cf8c2cb4e4b8f6edf3d2556feeafd774a4a5a96335819bb913c1
[INFO] running `Command { std: "docker" "start" "-a" "a0287c10c395cf8c2cb4e4b8f6edf3d2556feeafd774a4a5a96335819bb913c1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learner_j-e0364ecd79034d47)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0287c10c395cf8c2cb4e4b8f6edf3d2556feeafd774a4a5a96335819bb913c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0287c10c395cf8c2cb4e4b8f6edf3d2556feeafd774a4a5a96335819bb913c1", kill_on_drop: false }`
[INFO] [stdout] a0287c10c395cf8c2cb4e4b8f6edf3d2556feeafd774a4a5a96335819bb913c1
