[INFO] fetching crate difficient 0.1.0...
[INFO] testing difficient-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate difficient 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate difficient 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate difficient 0.1.0
[INFO] tweaked toml for crates.io crate difficient 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate difficient 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 difficient 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f46caf88c30516200f1d7bed61ecf305255ca570ed37ae930eac462e1170c46
[INFO] running `Command { std: "docker" "start" "-a" "7f46caf88c30516200f1d7bed61ecf305255ca570ed37ae930eac462e1170c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f46caf88c30516200f1d7bed61ecf305255ca570ed37ae930eac462e1170c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f46caf88c30516200f1d7bed61ecf305255ca570ed37ae930eac462e1170c46", kill_on_drop: false }`
[INFO] [stdout] 7f46caf88c30516200f1d7bed61ecf305255ca570ed37ae930eac462e1170c46
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63988273d8bc356ff486a16398cd632ebd61015dc57b2274606aeea9fc73d4ee
[INFO] running `Command { std: "docker" "start" "-a" "63988273d8bc356ff486a16398cd632ebd61015dc57b2274606aeea9fc73d4ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling thiserror v1.0.66
[INFO] [stderr]    Compiling similar v2.6.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling darling_core v0.21.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.66
[INFO] [stderr]    Compiling darling_macro v0.21.0
[INFO] [stderr]    Compiling darling v0.21.0
[INFO] [stderr]    Compiling difficient-macros v0.1.0
[INFO] [stderr]    Compiling difficient v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.45s
[INFO] running `Command { std: "docker" "inspect" "63988273d8bc356ff486a16398cd632ebd61015dc57b2274606aeea9fc73d4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63988273d8bc356ff486a16398cd632ebd61015dc57b2274606aeea9fc73d4ee", kill_on_drop: false }`
[INFO] [stdout] 63988273d8bc356ff486a16398cd632ebd61015dc57b2274606aeea9fc73d4ee
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec35d8f3bb76db6fb5fadcd1d4dcbdc96972dcbf1873ed29d5447d2eaf510f36
[INFO] running `Command { std: "docker" "start" "-a" "ec35d8f3bb76db6fb5fadcd1d4dcbdc96972dcbf1873ed29d5447d2eaf510f36", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling difficient v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "ec35d8f3bb76db6fb5fadcd1d4dcbdc96972dcbf1873ed29d5447d2eaf510f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec35d8f3bb76db6fb5fadcd1d4dcbdc96972dcbf1873ed29d5447d2eaf510f36", kill_on_drop: false }`
[INFO] [stdout] ec35d8f3bb76db6fb5fadcd1d4dcbdc96972dcbf1873ed29d5447d2eaf510f36
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e86874859d2046e5c3adf8c42512f58eed3425b9c20d3a10d677224c5f22091
[INFO] running `Command { std: "docker" "start" "-a" "4e86874859d2046e5c3adf8c42512f58eed3425b9c20d3a10d677224c5f22091", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/difficient-c8f5f3cd3ebc5858)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test vec::tests::awkward_1 ... ok
[INFO] [stdout] test vec::tests::awkward_2 ... ok
[INFO] [stdout] test tests::smoke_test ... ok
[INFO] [stdout] test vec::tests::test_null_vec ... ok
[INFO] [stdout] test vec::tests::test_simple_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-722e20cdbc2888d2)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_compound_vec ... ok
[INFO] [stdout] test tests::test_atomic_and_skip_enum ... ok
[INFO] [stdout] test tests::test_atomic_struct ... ok
[INFO] [stdout] test tests::test_less_simple_struct ... ok
[INFO] [stdout] test tests::test_unit_struct ... ok
[INFO] [stdout] test tests::test_simple_struct ... ok
[INFO] [stdout] test tests::test_tuple_struct ... ok
[INFO] [stdout] test tests::test_simple_enum ... ok
[INFO] [stdout] test tests::test_nested_single_field_structs_gives_targeted_patch ... ok
[INFO] [stdout] test tests::awkward_change ... ok
[INFO] [stdout] test tests::fuzz_vec_impl ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests difficient
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/../README.md - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e86874859d2046e5c3adf8c42512f58eed3425b9c20d3a10d677224c5f22091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e86874859d2046e5c3adf8c42512f58eed3425b9c20d3a10d677224c5f22091", kill_on_drop: false }`
[INFO] [stdout] 4e86874859d2046e5c3adf8c42512f58eed3425b9c20d3a10d677224c5f22091