[INFO] fetching crate subslice 0.2.2...
[INFO] testing subslice-0.2.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate subslice 0.2.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate subslice 0.2.2 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 subslice 0.2.2
[INFO] finished tweaking crates.io crate subslice 0.2.2
[INFO] tweaked toml for crates.io crate subslice 0.2.2 written to /workspace/builds/worker-13/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] [stderr]     Blocking waiting for file lock on package cache
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] dfad2e2cfdfad960a007ef320fbeb46e847d91f0008a1a4c8c32d1251c12cf77
[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" "dfad2e2cfdfad960a007ef320fbeb46e847d91f0008a1a4c8c32d1251c12cf77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfad2e2cfdfad960a007ef320fbeb46e847d91f0008a1a4c8c32d1251c12cf77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfad2e2cfdfad960a007ef320fbeb46e847d91f0008a1a4c8c32d1251c12cf77", kill_on_drop: false }`
[INFO] [stdout] dfad2e2cfdfad960a007ef320fbeb46e847d91f0008a1a4c8c32d1251c12cf77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] fd836d8dfd448a8da1f284449af7f007124831efd8bfd664d1f07a9bd4a89b7b
[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" "fd836d8dfd448a8da1f284449af7f007124831efd8bfd664d1f07a9bd4a89b7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling subslice v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "fd836d8dfd448a8da1f284449af7f007124831efd8bfd664d1f07a9bd4a89b7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd836d8dfd448a8da1f284449af7f007124831efd8bfd664d1f07a9bd4a89b7b", kill_on_drop: false }`
[INFO] [stdout] fd836d8dfd448a8da1f284449af7f007124831efd8bfd664d1f07a9bd4a89b7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 85758dfe930cf99216b58f5f4383bac499664db22ae0c870d733cdaf71ee06e6
[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" "85758dfe930cf99216b58f5f4383bac499664db22ae0c870d733cdaf71ee06e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling macro-attr v0.2.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling quickcheck v0.5.0
[INFO] [stderr]    Compiling subslice v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:305:39
[INFO] [stdout]     |
[INFO] [stdout] 305 |     assert_eq!(2, compute_max_suf_pos((b"aab")));
[INFO] [stdout]     |                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:307:39
[INFO] [stdout]     |
[INFO] [stdout] 307 |     assert_eq!(2, compute_max_suf_pos((b"aabaa")));
[INFO] [stdout]     |                                       ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:309:39
[INFO] [stdout]     |
[INFO] [stdout] 309 |     assert_eq!(0, compute_max_suf_pos((b"gcagagag")));
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:310:39
[INFO] [stdout]     |
[INFO] [stdout] 310 |     assert_eq!(2, compute_max_suf_pos((b"banana")));
[INFO] [stdout]     |                                       ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:315:42
[INFO] [stdout]     |
[INFO] [stdout] 315 |     assert_eq!((2, 1), maxsuf_and_period((b"aab")));
[INFO] [stdout]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:316:42
[INFO] [stdout]     |
[INFO] [stdout] 316 |     assert_eq!((2, 3), maxsuf_and_period((b"aabaa")));
[INFO] [stdout]     |                                          ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:317:42
[INFO] [stdout]     |
[INFO] [stdout] 317 |     assert_eq!((0, 7), maxsuf_and_period((b"gcagagag")));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "85758dfe930cf99216b58f5f4383bac499664db22ae0c870d733cdaf71ee06e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85758dfe930cf99216b58f5f4383bac499664db22ae0c870d733cdaf71ee06e6", kill_on_drop: false }`
[INFO] [stdout] 85758dfe930cf99216b58f5f4383bac499664db22ae0c870d733cdaf71ee06e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 4a4385e4daddf2baa01582108b719804fba92edfa03dffc1db7b36d763590e03
[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" "4a4385e4daddf2baa01582108b719804fba92edfa03dffc1db7b36d763590e03", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:305:39
[INFO] [stderr]     |
[INFO] [stderr] 305 |     assert_eq!(2, compute_max_suf_pos((b"aab")));
[INFO] [stderr]     |                                       ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:307:39
[INFO] [stderr]     |
[INFO] [stderr] 307 |     assert_eq!(2, compute_max_suf_pos((b"aabaa")));
[INFO] [stderr]     |                                       ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:309:39
[INFO] [stderr]     |
[INFO] [stderr] 309 |     assert_eq!(0, compute_max_suf_pos((b"gcagagag")));
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:310:39
[INFO] [stderr]     |
[INFO] [stderr] 310 |     assert_eq!(2, compute_max_suf_pos((b"banana")));
[INFO] [stderr]     |                                       ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:315:42
[INFO] [stderr]     |
[INFO] [stderr] 315 |     assert_eq!((2, 1), maxsuf_and_period((b"aab")));
[INFO] [stderr]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:316:42
[INFO] [stderr]     |
[INFO] [stderr] 316 |     assert_eq!((2, 3), maxsuf_and_period((b"aabaa")));
[INFO] [stderr]     |                                          ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/tw.rs:317:42
[INFO] [stderr]     |
[INFO] [stderr] 317 |     assert_eq!((0, 7), maxsuf_and_period((b"gcagagag")));
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/subslice-32bd7f19c7ba7451
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test bmh::bmh_preprocess ... ok
[INFO] [stdout] test bmh::bmh_find ... ok
[INFO] [stdout] test tw::test_max_suf_pos ... ok
[INFO] [stdout] test tw::test_max ... ok
[INFO] [stdout] test tw::test_maxsuf_and_period ... ok
[INFO] [stdout] test maximal_suffix_verbose ... ok
[INFO] [stdout] test tw::test_find ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quick-bb6af18e5e4db514
[INFO] [stdout] test maximal_suffix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests subslice
[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] [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" "4a4385e4daddf2baa01582108b719804fba92edfa03dffc1db7b36d763590e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4385e4daddf2baa01582108b719804fba92edfa03dffc1db7b36d763590e03", kill_on_drop: false }`
[INFO] [stdout] 4a4385e4daddf2baa01582108b719804fba92edfa03dffc1db7b36d763590e03