[INFO] fetching crate simple_linked_list 0.1.0...
[INFO] testing simple_linked_list-0.1.0 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate simple_linked_list 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate simple_linked_list 0.1.0
[INFO] finished tweaking crates.io crate simple_linked_list 0.1.0
[INFO] tweaked toml for crates.io crate simple_linked_list 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_linked_list 0.1.0 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple_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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c564bcea6f5056d74380900d65ac66815d6a2efd6ffe04c60c8a7f3e4ba87cd
[INFO] running `Command { std: "docker" "start" "-a" "5c564bcea6f5056d74380900d65ac66815d6a2efd6ffe04c60c8a7f3e4ba87cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c564bcea6f5056d74380900d65ac66815d6a2efd6ffe04c60c8a7f3e4ba87cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c564bcea6f5056d74380900d65ac66815d6a2efd6ffe04c60c8a7f3e4ba87cd", kill_on_drop: false }`
[INFO] [stdout] 5c564bcea6f5056d74380900d65ac66815d6a2efd6ffe04c60c8a7f3e4ba87cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50ce1aa421887a6c590ab08483c5a3946745ba7c2ae9a7a0e4b70e6d1ed23945
[INFO] running `Command { std: "docker" "start" "-a" "50ce1aa421887a6c590ab08483c5a3946745ba7c2ae9a7a0e4b70e6d1ed23945", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "50ce1aa421887a6c590ab08483c5a3946745ba7c2ae9a7a0e4b70e6d1ed23945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ce1aa421887a6c590ab08483c5a3946745ba7c2ae9a7a0e4b70e6d1ed23945", kill_on_drop: false }`
[INFO] [stdout] 50ce1aa421887a6c590ab08483c5a3946745ba7c2ae9a7a0e4b70e6d1ed23945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98a239b85139f492c7645f6037814e3e5fd1985e67a2d07edf6a22f203da6b86
[INFO] running `Command { std: "docker" "start" "-a" "98a239b85139f492c7645f6037814e3e5fd1985e67a2d07edf6a22f203da6b86", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "98a239b85139f492c7645f6037814e3e5fd1985e67a2d07edf6a22f203da6b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a239b85139f492c7645f6037814e3e5fd1985e67a2d07edf6a22f203da6b86", kill_on_drop: false }`
[INFO] [stdout] 98a239b85139f492c7645f6037814e3e5fd1985e67a2d07edf6a22f203da6b86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb1964704deaf5ff4e01e6e1f748b35091e62c0442e5af1f828c5c0c136ba68e
[INFO] running `Command { std: "docker" "start" "-a" "cb1964704deaf5ff4e01e6e1f748b35091e62c0442e5af1f828c5c0c136ba68e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_linked_list-679e380e70375a30)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_linked_list-8e0276cadf7b9cf4)
[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] [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] [stderr]    Doc-tests simple_linked_list
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - LinkedList<T>::new (line 31) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::len (line 209) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::push (line 58) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::is_empty (line 44) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::pop (line 103) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::print_list (line 147) ... FAILED
[INFO] [stdout] test src/lib.rs - LinkedList<T>::print_list (line 181) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::new (line 31) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]   --> src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use linked_list::LinkedList;
[INFO] [stdout]    |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::len (line 209) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]    --> src/lib.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 | use linked_list::LinkedList;
[INFO] [stdout]     |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::push (line 58) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]   --> src/lib.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | use linked_list::LinkedList; 
[INFO] [stdout]    |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::is_empty (line 44) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | use linked_list::LinkedList;
[INFO] [stdout]    |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::pop (line 103) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]    --> src/lib.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | use linked_list::LinkedList; 
[INFO] [stdout]     |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::print_list (line 147) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]    --> src/lib.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 | use linked_list::LinkedList; 
[INFO] [stdout]     |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - LinkedList<T>::print_list (line 181) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `linked_list`
[INFO] [stdout]    --> src/lib.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 182 | use linked_list::LinkedList;
[INFO] [stdout]     |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `linked_list`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `linked_list`, use `cargo add linked_list` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - LinkedList<T>::is_empty (line 44)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::len (line 209)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::new (line 31)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::pop (line 103)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::print_list (line 147)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::print_list (line 181)
[INFO] [stdout]     src/lib.rs - LinkedList<T>::push (line 58)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "cb1964704deaf5ff4e01e6e1f748b35091e62c0442e5af1f828c5c0c136ba68e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1964704deaf5ff4e01e6e1f748b35091e62c0442e5af1f828c5c0c136ba68e", kill_on_drop: false }`
[INFO] [stdout] cb1964704deaf5ff4e01e6e1f748b35091e62c0442e5af1f828c5c0c136ba68e
