[INFO] crate lrc 0.1.0 is already in cache
[INFO] testing lrc-0.1.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate lrc 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lrc 0.1.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lrc 0.1.0
[INFO] finished tweaking crates.io crate lrc 0.1.0
[INFO] tweaked toml for crates.io crate lrc 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec8965edfbb5731d218d61814ed4a05f791f1288949bc51f8b37b1cf30d048af
[INFO] running `"docker" "start" "-a" "ec8965edfbb5731d218d61814ed4a05f791f1288949bc51f8b37b1cf30d048af"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling educe v0.4.2
[INFO] [stderr]    Compiling lrc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:13:37
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref ID_LABEL_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]:]+$").unwrap() };
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     static ref ID_TEXT_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]]*$").unwrap() };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/timestamp.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         { Regex::new(r"^(-)?(\d{1,10}):(-)?(\d{1,2})(\.(-)?(\d{1,2}))?$").unwrap() };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     static ref LYRICS_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F]*$").unwrap() };
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 |     static ref TAG_RE: Regex = { Regex::new(r"\[.*:.*\]").unwrap() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `"docker" "inspect" "ec8965edfbb5731d218d61814ed4a05f791f1288949bc51f8b37b1cf30d048af"`
[INFO] running `"docker" "rm" "-f" "ec8965edfbb5731d218d61814ed4a05f791f1288949bc51f8b37b1cf30d048af"`
[INFO] [stdout] ec8965edfbb5731d218d61814ed4a05f791f1288949bc51f8b37b1cf30d048af
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9e04f41f5cac03a2a705fbc3e2d0f802cdf2269ea030da102d5356339840289
[INFO] running `"docker" "start" "-a" "c9e04f41f5cac03a2a705fbc3e2d0f802cdf2269ea030da102d5356339840289"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lrc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:13:37
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref ID_LABEL_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]:]+$").unwrap() };
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     static ref ID_TEXT_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]]*$").unwrap() };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/timestamp.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         { Regex::new(r"^(-)?(\d{1,10}):(-)?(\d{1,2})(\.(-)?(\d{1,2}))?$").unwrap() };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     static ref LYRICS_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F]*$").unwrap() };
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 |     static ref TAG_RE: Regex = { Regex::new(r"\[.*:.*\]").unwrap() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:13:37
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref ID_LABEL_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]:]+$").unwrap() };
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     static ref ID_TEXT_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]]*$").unwrap() };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/timestamp.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         { Regex::new(r"^(-)?(\d{1,10}):(-)?(\d{1,2})(\.(-)?(\d{1,2}))?$").unwrap() };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     static ref LYRICS_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F]*$").unwrap() };
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 |     static ref TAG_RE: Regex = { Regex::new(r"\[.*:.*\]").unwrap() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "c9e04f41f5cac03a2a705fbc3e2d0f802cdf2269ea030da102d5356339840289"`
[INFO] running `"docker" "rm" "-f" "c9e04f41f5cac03a2a705fbc3e2d0f802cdf2269ea030da102d5356339840289"`
[INFO] [stdout] c9e04f41f5cac03a2a705fbc3e2d0f802cdf2269ea030da102d5356339840289
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b7cac977e08667eae7c738999576fb24e94cf0410366e12ea26afaf4166e5892
[INFO] running `"docker" "start" "-a" "b7cac977e08667eae7c738999576fb24e94cf0410366e12ea26afaf4166e5892"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stdout] running 4 tests
[INFO] [stderr]   --> src/tags/id_tag.rs:13:37
[INFO] [stdout] test timestamp::test::timestamp ... ok
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref ID_LABEL_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]:]+$").unwrap() };
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     static ref ID_TEXT_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]]*$").unwrap() };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/timestamp.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         { Regex::new(r"^(-)?(\d{1,10}):(-)?(\d{1,2})(\.(-)?(\d{1,2}))?$").unwrap() };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     static ref LYRICS_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F]*$").unwrap() };
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 |     static ref TAG_RE: Regex = { Regex::new(r"\[.*:.*\]").unwrap() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:13:37
[INFO] [stderr]    |
[INFO] [stderr] 13 |     static ref ID_LABEL_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]:]+$").unwrap() };
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/tags/id_tag.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 |     static ref ID_TEXT_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F\\[\\]]*$").unwrap() };
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/timestamp.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         { Regex::new(r"^(-)?(\d{1,10}):(-)?(\d{1,2})(\.(-)?(\d{1,2}))?$").unwrap() };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:74:35
[INFO] [stderr]    |
[INFO] [stderr] 74 |     static ref LYRICS_RE: Regex = { Regex::new("^[^\x00-\x08\x0A-\x1F\x7F]*$").unwrap() };
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/lib.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 |     static ref TAG_RE: Regex = { Regex::new(r"\[.*:.*\]").unwrap() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lrc-ff65b43c62824294
[INFO] [stdout] test timestamp::test::parse ... ok
[INFO] [stdout] test timestamp::test::negative_timestamp ... ok
[INFO] [stdout] test timestamp::test::parse_errors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-3be89f4838f04d75
[INFO] [stdout] running 4 tests
[INFO] [stdout] test incorrect_positioned_tag ... ok
[INFO] [stderr]    Doc-tests lrc
[INFO] [stdout] test find_timestamp ... ok
[INFO] [stdout] test create ... ok
[INFO] [stdout] test parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 7) ... ok
[INFO] [stdout] test src/lib.rs -  (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b7cac977e08667eae7c738999576fb24e94cf0410366e12ea26afaf4166e5892"`
[INFO] running `"docker" "rm" "-f" "b7cac977e08667eae7c738999576fb24e94cf0410366e12ea26afaf4166e5892"`
[INFO] [stdout] b7cac977e08667eae7c738999576fb24e94cf0410366e12ea26afaf4166e5892