[INFO] fetching crate fasten 0.1.13...
[INFO] documenting fasten-0.1.13 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate fasten 0.1.13 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fasten 0.1.13 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fasten 0.1.13
[INFO] finished tweaking crates.io crate fasten 0.1.13
[INFO] tweaked toml for crates.io crate fasten 0.1.13 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded redox_syscall v0.1.57
[INFO] [stderr]   Downloaded owning_ref v0.2.4
[INFO] [stderr]   Downloaded parking_lot v0.3.8
[INFO] [stderr]   Downloaded smallvec v0.3.4
[INFO] [stderr]   Downloaded smallvec v0.6.14
[INFO] [stderr]   Downloaded parking_lot_core v0.2.14
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded futures v0.1.31
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded multiqueue v0.3.2
[INFO] [stderr]   Downloaded ucd-util v0.1.8
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded statistical v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a6b7213075a9a813513a1529743c98f8bd78a259eabc3e52a985b1a8760d36e
[INFO] running `Command { std: "docker" "start" "-a" "3a6b7213075a9a813513a1529743c98f8bd78a259eabc3e52a985b1a8760d36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6b7213075a9a813513a1529743c98f8bd78a259eabc3e52a985b1a8760d36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6b7213075a9a813513a1529743c98f8bd78a259eabc3e52a985b1a8760d36e", kill_on_drop: false }`
[INFO] [stdout] 3a6b7213075a9a813513a1529743c98f8bd78a259eabc3e52a985b1a8760d36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f140528c69bf18e4b340d702d20b2e9ad3d678f8283dec67417d311402c193ea
[INFO] running `Command { std: "docker" "start" "-a" "f140528c69bf18e4b340d702d20b2e9ad3d678f8283dec67417d311402c193ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking multiqueue v0.3.2
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking statistical v0.1.1
[INFO] [stderr]     Checking fasten v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fasten v0.1.13 (/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]    |                                    ^^^^^^^^ 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 type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove these parentheses
[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]    |                                    ^^^^^^^^ 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 type
[INFO] [stdout]    --> src/io/seq.rs:116:36
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn sanitize_id(id: &String) -> (String) {
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `fasten`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name fasten src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-2d68dd96af7a3637.rmeta --extern multiqueue=/opt/rustwide/target/debug/deps/libmultiqueue-ddbd39f7ba7028de.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3de628178315b7e2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-add8057423b0939b.rmeta --extern statistical=/opt/rustwide/target/debug/deps/libstatistical-c7a6ebc89fd22f25.rmeta --cap-lints=warn --crate-version 0.1.13` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f140528c69bf18e4b340d702d20b2e9ad3d678f8283dec67417d311402c193ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f140528c69bf18e4b340d702d20b2e9ad3d678f8283dec67417d311402c193ea", kill_on_drop: false }`
[INFO] [stdout] f140528c69bf18e4b340d702d20b2e9ad3d678f8283dec67417d311402c193ea
