[INFO] fetching crate rust_learner_j 0.1.0...
[INFO] testing rust_learner_j-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rust_learner_j 0.1.0 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_learner_j 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9af6c6c11b7380f4b425a8b64bcd09e759881ef21c63aa0dcae56959676dee84
[INFO] running `Command { std: "docker" "start" "-a" "9af6c6c11b7380f4b425a8b64bcd09e759881ef21c63aa0dcae56959676dee84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9af6c6c11b7380f4b425a8b64bcd09e759881ef21c63aa0dcae56959676dee84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af6c6c11b7380f4b425a8b64bcd09e759881ef21c63aa0dcae56959676dee84", kill_on_drop: false }`
[INFO] [stdout] 9af6c6c11b7380f4b425a8b64bcd09e759881ef21c63aa0dcae56959676dee84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce46a3ae1d18e63ef78022137e849636d88324aa432f004471186e3275294c7c
[INFO] running `Command { std: "docker" "start" "-a" "ce46a3ae1d18e63ef78022137e849636d88324aa432f004471186e3275294c7c", 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 0.55s
[INFO] running `Command { std: "docker" "inspect" "ce46a3ae1d18e63ef78022137e849636d88324aa432f004471186e3275294c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce46a3ae1d18e63ef78022137e849636d88324aa432f004471186e3275294c7c", kill_on_drop: false }`
[INFO] [stdout] ce46a3ae1d18e63ef78022137e849636d88324aa432f004471186e3275294c7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5f5c274d78e096074e739b35cedb74b1d49fe93d6ca0080759e93da4f8a4670
[INFO] running `Command { std: "docker" "start" "-a" "c5f5c274d78e096074e739b35cedb74b1d49fe93d6ca0080759e93da4f8a4670", 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 0.19s
[INFO] running `Command { std: "docker" "inspect" "c5f5c274d78e096074e739b35cedb74b1d49fe93d6ca0080759e93da4f8a4670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f5c274d78e096074e739b35cedb74b1d49fe93d6ca0080759e93da4f8a4670", kill_on_drop: false }`
[INFO] [stdout] c5f5c274d78e096074e739b35cedb74b1d49fe93d6ca0080759e93da4f8a4670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a61d68836243f24e417cd448e3c1f56b8df3794b36fddab0ff9eaa88b85728ca
[INFO] running `Command { std: "docker" "start" "-a" "a61d68836243f24e417cd448e3c1f56b8df3794b36fddab0ff9eaa88b85728ca", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learner_j-2a6ff212940730e5)
[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" "a61d68836243f24e417cd448e3c1f56b8df3794b36fddab0ff9eaa88b85728ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61d68836243f24e417cd448e3c1f56b8df3794b36fddab0ff9eaa88b85728ca", kill_on_drop: false }`
[INFO] [stdout] a61d68836243f24e417cd448e3c1f56b8df3794b36fddab0ff9eaa88b85728ca