[INFO] fetching crate mutatis 0.3.0...
[INFO] testing mutatis-0.3.0 against master#9e136a30a965bf4e63f03095c57df7257bf96fd6 for pr-134530
[INFO] extracting crate mutatis 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mutatis 0.3.0 on toolchain 9e136a30a965bf4e63f03095c57df7257bf96fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mutatis 0.3.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mutatis 0.3.0
[INFO] tweaked toml for crates.io crate mutatis 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.8
[INFO] [stderr]   Downloaded mutatis-derive v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59386bf19f4cb1100cafa43a9f3731ddc1060206520f2316c3eb2633c57544ea
[INFO] running `Command { std: "docker" "start" "-a" "59386bf19f4cb1100cafa43a9f3731ddc1060206520f2316c3eb2633c57544ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59386bf19f4cb1100cafa43a9f3731ddc1060206520f2316c3eb2633c57544ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59386bf19f4cb1100cafa43a9f3731ddc1060206520f2316c3eb2633c57544ea", kill_on_drop: false }`
[INFO] [stdout] 59386bf19f4cb1100cafa43a9f3731ddc1060206520f2316c3eb2633c57544ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a065290c512ee2472753c8807150c9ff8d329dfa38254165ad332bb61a36c654
[INFO] running `Command { std: "docker" "start" "-a" "a065290c512ee2472753c8807150c9ff8d329dfa38254165ad332bb61a36c654", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling mutatis v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "a065290c512ee2472753c8807150c9ff8d329dfa38254165ad332bb61a36c654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a065290c512ee2472753c8807150c9ff8d329dfa38254165ad332bb61a36c654", kill_on_drop: false }`
[INFO] [stdout] a065290c512ee2472753c8807150c9ff8d329dfa38254165ad332bb61a36c654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99c6ddce7fa4951037a5a6a2ebfbc7e4c6d8d804022f5e0f971cbb0509e98358
[INFO] running `Command { std: "docker" "start" "-a" "99c6ddce7fa4951037a5a6a2ebfbc7e4c6d8d804022f5e0f971cbb0509e98358", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.94
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling arbitrary v1.4.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling cc v1.2.5
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.8
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling env_filter v0.1.2
[INFO] [stderr]    Compiling env_logger v0.11.5
[INFO] [stderr]    Compiling mutatis v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 37.83s
[INFO] running `Command { std: "docker" "inspect" "99c6ddce7fa4951037a5a6a2ebfbc7e4c6d8d804022f5e0f971cbb0509e98358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c6ddce7fa4951037a5a6a2ebfbc7e4c6d8d804022f5e0f971cbb0509e98358", kill_on_drop: false }`
[INFO] [stdout] 99c6ddce7fa4951037a5a6a2ebfbc7e4c6d8d804022f5e0f971cbb0509e98358
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08f81b0e3c819fc0470eefc3931f9fcf413c24afbc22646537ad596e055fc7c2
[INFO] running `Command { std: "docker" "start" "-a" "08f81b0e3c819fc0470eefc3931f9fcf413c24afbc22646537ad596e055fc7c2", 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/mutatis-d5ce16e347f91f65)
[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]      Running tests/derive.rs (/opt/rustwide/target/debug/deps/derive-8f8e36f7ea7bab74)
[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 mutatis
[INFO] [stdout] 
[INFO] [stdout] running 78 tests
[INFO] [stdout] test src/_guide/comparisons.rs - _guide::comparisons (line 197) - compile ... ok
[INFO] [stdout] test src/_guide/comparisons.rs - _guide::comparisons (line 116) - compile ... ok
[INFO] [stdout] test src/_guide/comparisons.rs - _guide::comparisons (line 69) - compile ... ok
[INFO] [stdout] test src/_guide/comparisons.rs - _guide::comparisons (line 235) - compile ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 108) - compile ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 122) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 167) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 146) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 37) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 257) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 195) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 224) ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 17) ... ok
[INFO] [stdout] test src/_guide/fuzzer_integration.rs - _guide::fuzzer_integration (line 44) - compile ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 91) - compile ... ok
[INFO] [stdout] test src/_guide/derive_macro.rs - _guide::derive_macro (line 74) ... ok
[INFO] [stdout] test src/error.rs - error::ResultExt::ignore_exhausted (line 16) ... ok
[INFO] [stdout] test src/error.rs - error::ErrorKind (line 202) ... ok
[INFO] [stdout] test src/error.rs - error::ErrorMessage (line 253) ... ok
[INFO] [stdout] test src/error.rs - error::Error (line 63) ... ok
[INFO] [stdout] test src/_guide/shrinking.rs - _guide::shrinking (line 15) ... ok
[INFO] [stdout] test src/lib.rs - (line 188) ... ok
[INFO] [stdout] test src/lib.rs - (line 110) ... ok
[INFO] [stdout] test src/_guide/shrinking.rs - _guide::shrinking (line 59) ... ok
[INFO] [stdout] test src/lib.rs - Mutate (line 438) ... ok
[INFO] [stdout] test src/lib.rs - Mutate (line 413) ... ok
[INFO] [stdout] test src/lib.rs - Mutate (line 498) ... ok
[INFO] [stdout] test src/lib.rs - (line 237) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] test src/lib.rs - Mutate::mutate (line 581) ... ok
[INFO] [stdout] test src/lib.rs - Mutate::map (line 706) ... ok
[INFO] [stdout] test src/lib.rs - Mutate::by_ref (line 788) ... ok
[INFO] [stdout] test src/lib.rs - Session (line 45) ... ok
[INFO] [stdout] test src/lib.rs - Session::mutate (line 117) ... ok
[INFO] [stdout] test src/mutators.rs - mutators (line 5) ... ok
[INFO] [stdout] test src/lib.rs - Mutate::or (line 658) ... ok
[INFO] [stdout] test src/lib.rs - Session::mutate_with (line 157) ... ok
[INFO] [stdout] test src/lib.rs - Mutate::proj (line 745) ... ok
[INFO] [stdout] test src/mutators.rs - mutators::range (line 50) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::array (line 622) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::char (line 183) ... ok
[INFO] [stdout] test src/mutators/combinators.rs - mutators::combinators::just (line 91) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::bool (line 22) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::f32 (line 318) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::f64 (line 402) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::i128 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::i16 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::i32 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple1 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::i64 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::isize (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::i8 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple11 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple10 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple12 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple13 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple15 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple16 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple14 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple4 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple2 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple5 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple6 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple3 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple7 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple9 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::tuple8 (line 562) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::u16 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::u128 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::u32 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::unit (line 585) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::u8 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::u64 (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls/option.rs - mutators::core_impls::option::none (line 119) ... ok
[INFO] [stdout] test src/mutators/core_impls.rs - mutators::core_impls::usize (line 162) ... ok
[INFO] [stdout] test src/mutators/core_impls/option.rs - mutators::core_impls::option::some (line 72) ... ok
[INFO] [stdout] test src/mutators/core_impls/option.rs - mutators::core_impls::option::option (line 16) ... ok
[INFO] [stdout] test src/mutators/core_impls/result.rs - mutators::core_impls::result::result (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 78 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08f81b0e3c819fc0470eefc3931f9fcf413c24afbc22646537ad596e055fc7c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f81b0e3c819fc0470eefc3931f9fcf413c24afbc22646537ad596e055fc7c2", kill_on_drop: false }`
[INFO] [stdout] 08f81b0e3c819fc0470eefc3931f9fcf413c24afbc22646537ad596e055fc7c2