[INFO] fetching crate difficient 0.1.0...
[INFO] testing difficient-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate difficient 0.1.0 into /workspace/builds/worker-3-tc1/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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate difficient 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.11.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.95
[INFO] [stderr]   Downloaded serde v1.0.214
[INFO] [stderr]   Downloaded difficient-macros v0.1.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.66
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.95
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.95
[INFO] [stderr]   Downloaded thiserror v1.0.66
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.95
[INFO] [stderr]   Downloaded js-sys v0.3.72
[INFO] [stderr]   Downloaded serde_derive v1.0.214
[INFO] [stderr]   Downloaded cc v1.1.31
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.95
[INFO] [stderr]   Downloaded darling_core v0.21.0
[INFO] [stderr]   Downloaded serde_json v1.0.132
[INFO] [stderr]   Downloaded similar v2.6.0
[INFO] [stderr]   Downloaded darling v0.21.0
[INFO] [stderr]   Downloaded darling_macro v0.21.0
[INFO] [stderr]   Downloaded libc v0.2.161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bbf3b55729815db1979638b0e5bc3415a60920dcf7fa8dc1e3036cbfdca500f
[INFO] running `Command { std: "docker" "start" "-a" "7bbf3b55729815db1979638b0e5bc3415a60920dcf7fa8dc1e3036cbfdca500f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bbf3b55729815db1979638b0e5bc3415a60920dcf7fa8dc1e3036cbfdca500f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bbf3b55729815db1979638b0e5bc3415a60920dcf7fa8dc1e3036cbfdca500f", kill_on_drop: false }`
[INFO] [stdout] 7bbf3b55729815db1979638b0e5bc3415a60920dcf7fa8dc1e3036cbfdca500f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e1a45c18814a6ac228a5b6379f6c46ede0ef7f671090a16f78a08cdca6a17d4
[INFO] running `Command { std: "docker" "start" "-a" "1e1a45c18814a6ac228a5b6379f6c46ede0ef7f671090a16f78a08cdca6a17d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling thiserror v1.0.66
[INFO] [stderr]    Compiling similar v2.6.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[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 13.15s
[INFO] running `Command { std: "docker" "inspect" "1e1a45c18814a6ac228a5b6379f6c46ede0ef7f671090a16f78a08cdca6a17d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1a45c18814a6ac228a5b6379f6c46ede0ef7f671090a16f78a08cdca6a17d4", kill_on_drop: false }`
[INFO] [stdout] 1e1a45c18814a6ac228a5b6379f6c46ede0ef7f671090a16f78a08cdca6a17d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba9e76ac5d56cbe2087e01fc0a2dd6157e4b142ee391a5f195a80fdb6df45584
[INFO] running `Command { std: "docker" "start" "-a" "ba9e76ac5d56cbe2087e01fc0a2dd6157e4b142ee391a5f195a80fdb6df45584", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.11
[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 13.60s
[INFO] running `Command { std: "docker" "inspect" "ba9e76ac5d56cbe2087e01fc0a2dd6157e4b142ee391a5f195a80fdb6df45584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba9e76ac5d56cbe2087e01fc0a2dd6157e4b142ee391a5f195a80fdb6df45584", kill_on_drop: false }`
[INFO] [stdout] ba9e76ac5d56cbe2087e01fc0a2dd6157e4b142ee391a5f195a80fdb6df45584
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19faa218e574a5b13c25b0d0b98cb10a3af7e1b3f4ffe308ce3f29bb2e87f376
[INFO] running `Command { std: "docker" "start" "-a" "19faa218e574a5b13c25b0d0b98cb10a3af7e1b3f4ffe308ce3f29bb2e87f376", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/difficient-5c93ac178989ab80)
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-fe450870184dbe2e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test vec::tests::awkward_1 ... ok
[INFO] [stdout] test tests::smoke_test ... ok
[INFO] [stdout] test vec::tests::awkward_2 ... 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] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::awkward_change ... ok
[INFO] [stdout] test tests::test_atomic_struct ... ok
[INFO] [stdout] test tests::test_atomic_and_skip_enum ... ok
[INFO] [stdout] test tests::test_compound_vec ... ok
[INFO] [stdout] test tests::test_nested_single_field_structs_gives_targeted_patch ... ok
[INFO] [stdout] test tests::test_simple_struct ... ok
[INFO] [stdout] test tests::test_tuple_struct ... ok
[INFO] [stdout] test tests::test_unit_struct ... ok
[INFO] [stdout] test tests::test_less_simple_struct ... ok
[INFO] [stdout] test tests::test_simple_enum ... ok
[INFO] [stderr]    Doc-tests difficient
[INFO] [stdout] test tests::fuzz_vec_impl ... ok
[INFO] [stdout] 
[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] [stdout] all doctests ran in 0.73s; merged doctests compilation took 0.71s
[INFO] running `Command { std: "docker" "inspect" "19faa218e574a5b13c25b0d0b98cb10a3af7e1b3f4ffe308ce3f29bb2e87f376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19faa218e574a5b13c25b0d0b98cb10a3af7e1b3f4ffe308ce3f29bb2e87f376", kill_on_drop: false }`
[INFO] [stdout] 19faa218e574a5b13c25b0d0b98cb10a3af7e1b3f4ffe308ce3f29bb2e87f376