[INFO] fetching crate syn_crabs 0.2.0...
[INFO] testing syn_crabs-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate syn_crabs 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate syn_crabs 0.2.0
[INFO] finished tweaking crates.io crate syn_crabs 0.2.0
[INFO] tweaked toml for crates.io crate syn_crabs 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syn_crabs 0.2.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 76 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e11e5a695bda330819d7fb20e95ee95dfc11b5972336ee1bc43e837184145cb2
[INFO] running `Command { std: "docker" "start" "-a" "e11e5a695bda330819d7fb20e95ee95dfc11b5972336ee1bc43e837184145cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e11e5a695bda330819d7fb20e95ee95dfc11b5972336ee1bc43e837184145cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e11e5a695bda330819d7fb20e95ee95dfc11b5972336ee1bc43e837184145cb2", kill_on_drop: false }`
[INFO] [stdout] e11e5a695bda330819d7fb20e95ee95dfc11b5972336ee1bc43e837184145cb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] efe537eeb68040acfaffe962cc8032d4fc91772c7876c85c60c656a045c642a7
[INFO] running `Command { std: "docker" "start" "-a" "efe537eeb68040acfaffe962cc8032d4fc91772c7876c85c60c656a045c642a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling syn_crabs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "efe537eeb68040acfaffe962cc8032d4fc91772c7876c85c60c656a045c642a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efe537eeb68040acfaffe962cc8032d4fc91772c7876c85c60c656a045c642a7", kill_on_drop: false }`
[INFO] [stdout] efe537eeb68040acfaffe962cc8032d4fc91772c7876c85c60c656a045c642a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5ecb6b1ee488fd09301a4e1e74f0ec97ae0074a783b292a93155a69c6d40b60c
[INFO] running `Command { std: "docker" "start" "-a" "5ecb6b1ee488fd09301a4e1e74f0ec97ae0074a783b292a93155a69c6d40b60c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_crabs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "5ecb6b1ee488fd09301a4e1e74f0ec97ae0074a783b292a93155a69c6d40b60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ecb6b1ee488fd09301a4e1e74f0ec97ae0074a783b292a93155a69c6d40b60c", kill_on_drop: false }`
[INFO] [stdout] 5ecb6b1ee488fd09301a4e1e74f0ec97ae0074a783b292a93155a69c6d40b60c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c99d450c1396c20c6c4ac732370eab694431fab74debe439897acb59ace9f1cf
[INFO] running `Command { std: "docker" "start" "-a" "c99d450c1396c20c6c4ac732370eab694431fab74debe439897acb59ace9f1cf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syn_crabs-939815129f0d031b)
[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 syn_crabs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - Local (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Local (line 12) stdout ----
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]   --> src/lib.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 10 | The log level can be set via the `RUST_LOG` environment variable:
[INFO] [stdout]    |                                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]    |
[INFO] [stdout] 10 - The log level can be set via the `RUST_LOG` environment variable:
[INFO] [stdout] 10 + The log level can be set via the 'RUST_LOG` environment variable:
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: unknown start of token: `
[INFO] [stdout]   --> src/lib.rs:22:43
[INFO] [stdout]    |
[INFO] [stdout] 10 | The log level can be set via the `RUST_LOG` environment variable:
[INFO] [stdout]    |                                           ^
[INFO] [stdout]    |
[INFO] [stdout] help: Unicode character '`' (Grave Accent) looks like ''' (Single Quote), but it is not
[INFO] [stdout]    |
[INFO] [stdout] 10 - The log level can be set via the `RUST_LOG` environment variable:
[INFO] [stdout] 10 + The log level can be set via the `RUST_LOG' environment variable:
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found `log`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | The log level can be set via the `RUST_LOG` environment variable:
[INFO] [stdout]    |     ^^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Local (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c99d450c1396c20c6c4ac732370eab694431fab74debe439897acb59ace9f1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99d450c1396c20c6c4ac732370eab694431fab74debe439897acb59ace9f1cf", kill_on_drop: false }`
[INFO] [stdout] c99d450c1396c20c6c4ac732370eab694431fab74debe439897acb59ace9f1cf