[INFO] fetching crate ross 0.1.7...
[INFO] building ross-0.1.7 against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] extracting crate ross 0.1.7 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate ross 0.1.7 on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ross 0.1.7
[INFO] finished tweaking crates.io crate ross 0.1.7
[INFO] tweaked toml for crates.io crate ross 0.1.7 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e032a86616c64618b757451eda6ec3d0d1698e8fcf48f5a577eb4c9a7149072c
[INFO] running `Command { std: "docker" "start" "-a" "e032a86616c64618b757451eda6ec3d0d1698e8fcf48f5a577eb4c9a7149072c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e032a86616c64618b757451eda6ec3d0d1698e8fcf48f5a577eb4c9a7149072c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e032a86616c64618b757451eda6ec3d0d1698e8fcf48f5a577eb4c9a7149072c", kill_on_drop: false }`
[INFO] [stdout] e032a86616c64618b757451eda6ec3d0d1698e8fcf48f5a577eb4c9a7149072c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6110705d93413a8f997e4dd3a1af3318c30f13c91a41f37f1294dd0b2e7f6f1
[INFO] running `Command { std: "docker" "start" "-a" "e6110705d93413a8f997e4dd3a1af3318c30f13c91a41f37f1294dd0b2e7f6f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling owning_ref v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling smallvec v0.3.4
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling parking_lot v0.3.8
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling multiqueue v0.3.2
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling statistical v0.1.1
[INFO] [stderr]    Compiling ross v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/io/seq.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout]    |                                    ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout] 49 +     fn sanitize_id(id: &String) -> String;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout] 116 +     fn sanitize_id(id: &String) -> String {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.67s
[INFO] running `Command { std: "docker" "inspect" "e6110705d93413a8f997e4dd3a1af3318c30f13c91a41f37f1294dd0b2e7f6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6110705d93413a8f997e4dd3a1af3318c30f13c91a41f37f1294dd0b2e7f6f1", kill_on_drop: false }`
[INFO] [stdout] e6110705d93413a8f997e4dd3a1af3318c30f13c91a41f37f1294dd0b2e7f6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c486e23157632d82931ba70032e3e7c11b2b0d89dad2036a99d97c319a82edb
[INFO] running `Command { std: "docker" "start" "-a" "7c486e23157632d82931ba70032e3e7c11b2b0d89dad2036a99d97c319a82edb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ross v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/io/seq.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout]    |                                    ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout] 49 +     fn sanitize_id(id: &String) -> String;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout] 116 +     fn sanitize_id(id: &String) -> String {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/io/seq.rs:49:36
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout]    |                                    ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 49 -     fn sanitize_id(id: &String) -> (String);
[INFO] [stdout] 49 +     fn sanitize_id(id: &String) -> String;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 116 -     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout] 116 +     fn sanitize_id(id: &String) -> String {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "7c486e23157632d82931ba70032e3e7c11b2b0d89dad2036a99d97c319a82edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c486e23157632d82931ba70032e3e7c11b2b0d89dad2036a99d97c319a82edb", kill_on_drop: false }`
[INFO] [stdout] 7c486e23157632d82931ba70032e3e7c11b2b0d89dad2036a99d97c319a82edb