[INFO] fetching crate rust_linked_list 0.1.0...
[INFO] testing rust_linked_list-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rust_linked_list 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rust_linked_list 0.1.0
[INFO] finished tweaking crates.io crate rust_linked_list 0.1.0
[INFO] tweaked toml for crates.io crate rust_linked_list 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_linked_list 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_linked_list 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a883a5c430d29a914213d549591e500f2349fb6093566fcd2abee16b6f5c579
[INFO] running `Command { std: "docker" "start" "-a" "7a883a5c430d29a914213d549591e500f2349fb6093566fcd2abee16b6f5c579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a883a5c430d29a914213d549591e500f2349fb6093566fcd2abee16b6f5c579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a883a5c430d29a914213d549591e500f2349fb6093566fcd2abee16b6f5c579", kill_on_drop: false }`
[INFO] [stdout] 7a883a5c430d29a914213d549591e500f2349fb6093566fcd2abee16b6f5c579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20160b2b95c9fc8655c32b344fdcea6876f8804683a58869c5514b781f9b099b
[INFO] running `Command { std: "docker" "start" "-a" "20160b2b95c9fc8655c32b344fdcea6876f8804683a58869c5514b781f9b099b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "20160b2b95c9fc8655c32b344fdcea6876f8804683a58869c5514b781f9b099b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20160b2b95c9fc8655c32b344fdcea6876f8804683a58869c5514b781f9b099b", kill_on_drop: false }`
[INFO] [stdout] 20160b2b95c9fc8655c32b344fdcea6876f8804683a58869c5514b781f9b099b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07bccba61421bd769ae682cfa6506a5851495466069bd77cda5f4b4aa15a147e
[INFO] running `Command { std: "docker" "start" "-a" "07bccba61421bd769ae682cfa6506a5851495466069bd77cda5f4b4aa15a147e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "07bccba61421bd769ae682cfa6506a5851495466069bd77cda5f4b4aa15a147e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07bccba61421bd769ae682cfa6506a5851495466069bd77cda5f4b4aa15a147e", kill_on_drop: false }`
[INFO] [stdout] 07bccba61421bd769ae682cfa6506a5851495466069bd77cda5f4b4aa15a147e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f4e98cef1810005339288392ff253c7cc7e8017060270f4f18860c2659e8d982
[INFO] running `Command { std: "docker" "start" "-a" "f4e98cef1810005339288392ff253c7cc7e8017060270f4f18860c2659e8d982", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_linked_list-8df84a688e80015f)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test immutable_list::tests::creates_an_empty_list ... ok
[INFO] [stdout] test queue::test::basics ... ok
[INFO] [stdout] test queue::test::into_iter ... ok
[INFO] [stdout] test queue::test::iter ... ok
[INFO] [stdout] test immutable_list::tests::iter ... ok
[INFO] [stdout] test stack::tests::creates_an_empty_list ... ok
[INFO] [stdout] test stack::tests::iter ... ok
[INFO] [stdout] test stack::tests::into_iter ... ok
[INFO] [stdout] test stack::tests::iter_mut ... ok
[INFO] [stdout] test stack::tests::peek ... ok
[INFO] [stdout] test stack::tests::pushes_element ... ok
[INFO] [stdout] test immutable_list::tests::pushes_element ... ok
[INFO] [stdout] test immutable_list::tests::tail ... ok
[INFO] [stdout] test queue::test::iter_mut ... ok
[INFO] [stdout] test stack::tests::pops ... ok
[INFO] [stdout] test stack::tests::pops_empty ... ok
[INFO] [stdout] test queue::test::peek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_linked_list
[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" "f4e98cef1810005339288392ff253c7cc7e8017060270f4f18860c2659e8d982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e98cef1810005339288392ff253c7cc7e8017060270f4f18860c2659e8d982", kill_on_drop: false }`
[INFO] [stdout] f4e98cef1810005339288392ff253c7cc7e8017060270f4f18860c2659e8d982