[INFO] fetching crate rex-regex 0.1.4...
[INFO] testing rex-regex-0.1.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rex-regex 0.1.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rex-regex 0.1.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c89dce9b4b4088abd1f04fafe7ca225ae58bf8b98417b50ee5c164fe010ecd7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c89dce9b4b4088abd1f04fafe7ca225ae58bf8b98417b50ee5c164fe010ecd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c89dce9b4b4088abd1f04fafe7ca225ae58bf8b98417b50ee5c164fe010ecd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c89dce9b4b4088abd1f04fafe7ca225ae58bf8b98417b50ee5c164fe010ecd7d", kill_on_drop: false }`
[INFO] [stdout] c89dce9b4b4088abd1f04fafe7ca225ae58bf8b98417b50ee5c164fe010ecd7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 550cda2aada89987ca69ea8a09413922b4426403ce84e9034045712037b0b0af
[INFO] running `Command { std: "docker" "start" "-a" "550cda2aada89987ca69ea8a09413922b4426403ce84e9034045712037b0b0af", 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "550cda2aada89987ca69ea8a09413922b4426403ce84e9034045712037b0b0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550cda2aada89987ca69ea8a09413922b4426403ce84e9034045712037b0b0af", kill_on_drop: false }`
[INFO] [stdout] 550cda2aada89987ca69ea8a09413922b4426403ce84e9034045712037b0b0af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b02da715ee878b75018099d1f1aedfbf3e384092fa2c85ab19a6577c194df3a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b02da715ee878b75018099d1f1aedfbf3e384092fa2c85ab19a6577c194df3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.03s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b02da715ee878b75018099d1f1aedfbf3e384092fa2c85ab19a6577c194df3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b02da715ee878b75018099d1f1aedfbf3e384092fa2c85ab19a6577c194df3a", kill_on_drop: false }`
[INFO] [stdout] 3b02da715ee878b75018099d1f1aedfbf3e384092fa2c85ab19a6577c194df3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 924babba7d0e318a5b0bdbb8041cf6e0d67413873e4c566b481daecf372440c1
[INFO] running `Command { std: "docker" "start" "-a" "924babba7d0e318a5b0bdbb8041cf6e0d67413873e4c566b481daecf372440c1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stdout] running 20 tests
[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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rex_regex-31d15c14f09037b7
[INFO] [stdout] test matcher::tests::test_char_matcher ... ok
[INFO] [stdout] test parse::tests::test_find_closing_paren ... ok
[INFO] [stdout] test matcher::tests::test_str_matcher ... ok
[INFO] [stdout] test matching::tests::test_match_simple ... ok
[INFO] [stdout] test optimize::tests::test_repr_optimize ... ok
[INFO] [stdout] test parse::tests::test_parse_manual ... ok
[INFO] [stdout] test parse::tests::test_parse_charset ... ok
[INFO] [stdout] test parse::tests::test_parse_res ... ok
[INFO] [stdout] test parse::tests::test_parse_subs ... ok
[INFO] [stdout] test parse::tests::test_parse_res_errors ... ok
[INFO] [stdout] test parse::tests::test_parse_manual2 ... ok
[INFO] [stdout] test tests::test_alternate ... ok
[INFO] [stdout] test parse::tests::test_parse_repetition_manual ... ok
[INFO] [stdout] test repr::tests::test_re1 ... ok
[INFO] [stdout] test tests::test_character_classes ... ok
[INFO] [stdout] test tests::test_simple_repeat ... ok
[INFO] [stdout] test tests::test_anchoring ... ok
[INFO] [stdout] test tests::test_submatches ... ok
[INFO] [stdout] test tests::test_notorious_graph ... ok
[INFO] [stdout] test tests::test_specific_repeat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "924babba7d0e318a5b0bdbb8041cf6e0d67413873e4c566b481daecf372440c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924babba7d0e318a5b0bdbb8041cf6e0d67413873e4c566b481daecf372440c1", kill_on_drop: false }`
[INFO] [stdout] 924babba7d0e318a5b0bdbb8041cf6e0d67413873e4c566b481daecf372440c1