[INFO] fetching crate font-rs 0.1.3...
[INFO] testing font-rs-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate font-rs 0.1.3 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate font-rs 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate font-rs 0.1.3
[INFO] finished tweaking crates.io crate font-rs 0.1.3
[INFO] tweaked toml for crates.io crate font-rs 0.1.3 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4671643285b66ab06a9743cb27a3082d5a8a4e4f021a70543702ac3c3e60f699
[INFO] running `Command { std: "docker" "start" "-a" "4671643285b66ab06a9743cb27a3082d5a8a4e4f021a70543702ac3c3e60f699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4671643285b66ab06a9743cb27a3082d5a8a4e4f021a70543702ac3c3e60f699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4671643285b66ab06a9743cb27a3082d5a8a4e4f021a70543702ac3c3e60f699", kill_on_drop: false }`
[INFO] [stdout] 4671643285b66ab06a9743cb27a3082d5a8a4e4f021a70543702ac3c3e60f699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5286ba849e66fe1b067a9ab6296e8c09d6d2a580a2603b138b6fc3bee53181ab
[INFO] running `Command { std: "docker" "start" "-a" "5286ba849e66fe1b067a9ab6296e8c09d6d2a580a2603b138b6fc3bee53181ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling font-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/font.rs:571:34
[INFO] [stdout]     |
[INFO] [stdout] 571 |     fn next(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` 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 2.75s
[INFO] running `Command { std: "docker" "inspect" "5286ba849e66fe1b067a9ab6296e8c09d6d2a580a2603b138b6fc3bee53181ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5286ba849e66fe1b067a9ab6296e8c09d6d2a580a2603b138b6fc3bee53181ab", kill_on_drop: false }`
[INFO] [stdout] 5286ba849e66fe1b067a9ab6296e8c09d6d2a580a2603b138b6fc3bee53181ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f99d954b0435489ee64720e4eb12cd0dab6519d2bf4003332b353673c1a2a88d
[INFO] running `Command { std: "docker" "start" "-a" "f99d954b0435489ee64720e4eb12cd0dab6519d2bf4003332b353673c1a2a88d", kill_on_drop: false }`
[INFO] [stderr]    Compiling font-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/font.rs:571:34
[INFO] [stdout]     |
[INFO] [stdout] 571 |     fn next(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/font.rs:571:34
[INFO] [stdout]     |
[INFO] [stdout] 571 |     fn next(&mut self) -> Option<(usize)> {
[INFO] [stdout]     |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "f99d954b0435489ee64720e4eb12cd0dab6519d2bf4003332b353673c1a2a88d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99d954b0435489ee64720e4eb12cd0dab6519d2bf4003332b353673c1a2a88d", kill_on_drop: false }`
[INFO] [stdout] f99d954b0435489ee64720e4eb12cd0dab6519d2bf4003332b353673c1a2a88d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 730cf5ab468eaea2a30407a086f7c484f9fcec63e826cd4482ed05fb0eaf2bd1
[INFO] running `Command { std: "docker" "start" "-a" "730cf5ab468eaea2a30407a086f7c484f9fcec63e826cd4482ed05fb0eaf2bd1", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/font.rs:571:34
[INFO] [stderr]     |
[INFO] [stderr] 571 |     fn next(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `font-rs` (lib) generated 1 warning
[INFO] [stderr] warning: `font-rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/font_rs-2be68f77d2407533)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test accumulate::tests::max_255_from_0_0078125 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_015625 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_03125 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_0625 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_25 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_125 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_0_5 ... ok
[INFO] [stdout] test accumulate::tests::max_255_from_1_0 ... ok
[INFO] [stdout] test accumulate::tests::simple_0 ... ok
[INFO] [stdout] test accumulate::tests::simple_1 ... ok
[INFO] [stdout] test accumulate::tests::simple_2 ... ok
[INFO] [stdout] test accumulate::tests::simple_3 ... ok
[INFO] [stdout] test accumulate::tests::simple_4 ... ok
[INFO] [stdout] test accumulate::tests::simple_5 ... ok
[INFO] [stdout] test accumulate::tests::simple_6 ... ok
[INFO] [stdout] test accumulate::tests::simple_7 ... ok
[INFO] [stderr]    Doc-tests font-rs
[INFO] [stdout] test font::tests::test_cmap_format_4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/font.rs:571:34
[INFO] [stderr]     |
[INFO] [stderr] 571 |     fn next(&mut self) -> Option<(usize)> {
[INFO] [stderr]     |                                  ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "730cf5ab468eaea2a30407a086f7c484f9fcec63e826cd4482ed05fb0eaf2bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730cf5ab468eaea2a30407a086f7c484f9fcec63e826cd4482ed05fb0eaf2bd1", kill_on_drop: false }`
[INFO] [stdout] 730cf5ab468eaea2a30407a086f7c484f9fcec63e826cd4482ed05fb0eaf2bd1