[INFO] fetching crate rex-regex 0.1.4...
[INFO] testing rex-regex-0.1.4 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate rex-regex 0.1.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rex-regex 0.1.4
[INFO] finished tweaking crates.io crate rex-regex 0.1.4
[INFO] tweaked toml for crates.io crate rex-regex 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rex-regex 0.1.4 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14984ee380e9911cdcd16e72f1ade8807ac4352452add024b5389f46803b5f02
[INFO] running `Command { std: "docker" "start" "-a" "14984ee380e9911cdcd16e72f1ade8807ac4352452add024b5389f46803b5f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14984ee380e9911cdcd16e72f1ade8807ac4352452add024b5389f46803b5f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14984ee380e9911cdcd16e72f1ade8807ac4352452add024b5389f46803b5f02", kill_on_drop: false }`
[INFO] [stdout] 14984ee380e9911cdcd16e72f1ade8807ac4352452add024b5389f46803b5f02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb450145ef079ba831141b0771d4f2139464f0ba69b64fde5cc3d81f2f5e75b6
[INFO] running `Command { std: "docker" "start" "-a" "fb450145ef079ba831141b0771d4f2139464f0ba69b64fde5cc3d81f2f5e75b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rex-regex v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/matching.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "fb450145ef079ba831141b0771d4f2139464f0ba69b64fde5cc3d81f2f5e75b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb450145ef079ba831141b0771d4f2139464f0ba69b64fde5cc3d81f2f5e75b6", kill_on_drop: false }`
[INFO] [stdout] fb450145ef079ba831141b0771d4f2139464f0ba69b64fde5cc3d81f2f5e75b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8f03cdd5392ce9984a345f7621d488593d1a8d5d7a4eb58e07363109b78a654
[INFO] running `Command { std: "docker" "start" "-a" "c8f03cdd5392ce9984a345f7621d488593d1a8d5d7a4eb58e07363109b78a654", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/matching.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling rex-regex v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/matching.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.01s
[INFO] running `Command { std: "docker" "inspect" "c8f03cdd5392ce9984a345f7621d488593d1a8d5d7a4eb58e07363109b78a654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f03cdd5392ce9984a345f7621d488593d1a8d5d7a4eb58e07363109b78a654", kill_on_drop: false }`
[INFO] [stdout] c8f03cdd5392ce9984a345f7621d488593d1a8d5d7a4eb58e07363109b78a654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 025425eb06029124f157a5e38d09171fcd9257f4a3e30f5250cdf045aad9efb9
[INFO] running `Command { std: "docker" "start" "-a" "025425eb06029124f157a5e38d09171fcd9257f4a3e30f5250cdf045aad9efb9", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/matching.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashSet, HashMap};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rex-regex` (lib) generated 1 warning (run `cargo fix --lib -p rex-regex` to apply 1 suggestion)
[INFO] [stderr] warning: `rex-regex` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rex_regex-40941c23834862c0)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test matcher::tests::test_char_matcher ... ok
[INFO] [stdout] test optimize::tests::test_repr_optimize ... ok
[INFO] [stdout] test matching::tests::test_match_simple ... ok
[INFO] [stdout] test parse::tests::test_find_closing_paren ... ok
[INFO] [stdout] test parse::tests::test_parse_charset ... ok
[INFO] [stdout] test parse::tests::test_parse_manual ... ok
[INFO] [stdout] test parse::tests::test_parse_repetition_manual ... ok
[INFO] [stdout] test parse::tests::test_parse_res_errors ... ok
[INFO] [stdout] test parse::tests::test_parse_subs ... ok
[INFO] [stdout] test parse::tests::test_parse_res ... ok
[INFO] [stdout] test tests::test_simple_repeat ... ok
[INFO] [stdout] test tests::test_alternate ... ok
[INFO] [stdout] test tests::test_notorious_graph ... ok
[INFO] [stdout] test tests::test_anchoring ... ok
[INFO] [stdout] test tests::test_specific_repeat ... ok
[INFO] [stdout] test tests::test_character_classes ... ok
[INFO] [stdout] test matcher::tests::test_str_matcher ... ok
[INFO] [stdout] test tests::test_submatches ... ok
[INFO] [stdout] test repr::tests::test_re1 ... ok
[INFO] [stdout] test parse::tests::test_parse_manual2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rex_regex
[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] running `Command { std: "docker" "inspect" "025425eb06029124f157a5e38d09171fcd9257f4a3e30f5250cdf045aad9efb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025425eb06029124f157a5e38d09171fcd9257f4a3e30f5250cdf045aad9efb9", kill_on_drop: false }`
[INFO] [stdout] 025425eb06029124f157a5e38d09171fcd9257f4a3e30f5250cdf045aad9efb9