[INFO] cloning repository https://github.com/rowans329/hsh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rowans329/hsh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5ebff697742fd951433059e7a735110c36973a4
[INFO] checking rowans329/hsh against master#e23ae72ac7a393961886ea62df065ebb6def7d51 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rowans329/hsh on toolchain e23ae72ac7a393961886ea62df065ebb6def7d51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rowans329/hsh
[INFO] finished tweaking git repo https://github.com/rowans329/hsh
[INFO] tweaked toml for git repo https://github.com/rowans329/hsh written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rowans329/hsh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking rowans329/hsh against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rowans329/hsh on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rowans329/hsh
[INFO] finished tweaking git repo https://github.com/rowans329/hsh
[INFO] tweaked toml for git repo https://github.com/rowans329/hsh written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rowans329/hsh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking rowans329/hsh against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rowans329/hsh on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rowans329/hsh
[INFO] finished tweaking git repo https://github.com/rowans329/hsh
[INFO] tweaked toml for git repo https://github.com/rowans329/hsh written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rowans329/hsh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "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 ripemd320 v0.9.0
[INFO] [stderr]   Downloaded gost94 v0.9.1
[INFO] [stderr]   Downloaded streebog v0.9.2
[INFO] [stderr]   Downloaded shabal v0.3.0
[INFO] [stderr]   Downloaded whirlpool v0.9.0
[INFO] [stderr]   Downloaded groestl v0.9.0
[INFO] [stderr]   Downloaded md2 v0.9.0
[INFO] [stderr]   Downloaded md4 v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b154132bc5a4da116ca92e4e95990e054b586190c0ec259502a019eb97572fb
[INFO] running `Command { std: "docker" "start" "-a" "2b154132bc5a4da116ca92e4e95990e054b586190c0ec259502a019eb97572fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b154132bc5a4da116ca92e4e95990e054b586190c0ec259502a019eb97572fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b154132bc5a4da116ca92e4e95990e054b586190c0ec259502a019eb97572fb", kill_on_drop: false }`
[INFO] [stdout] 2b154132bc5a4da116ca92e4e95990e054b586190c0ec259502a019eb97572fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c7f5ef7ff217e6081ff17c6826400a113f7e5fce7644152344de630ffd80b5b
[INFO] running `Command { std: "docker" "start" "-a" "3c7f5ef7ff217e6081ff17c6826400a113f7e5fce7644152344de630ffd80b5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking blowfish v0.8.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking bcrypt v0.10.1
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking gost94 v0.9.1
[INFO] [stderr]     Checking shabal v0.3.0
[INFO] [stderr]     Checking ripemd320 v0.9.0
[INFO] [stderr]     Checking groestl v0.9.0
[INFO] [stderr]     Checking md4 v0.9.0
[INFO] [stderr]     Checking streebog v0.9.2
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking md2 v0.9.0
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking whirlpool v0.9.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking b64 v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking hsh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/format.rs:234:13
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let _ = mode.lock();
[INFO] [stdout]     |             ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(let_underscore_lock)]` on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let _unused = mode.lock();
[INFO] [stdout]     |             ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 234 |         drop(mode.lock());
[INFO] [stdout]     |         ~~~~~           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hsh` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3c7f5ef7ff217e6081ff17c6826400a113f7e5fce7644152344de630ffd80b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7f5ef7ff217e6081ff17c6826400a113f7e5fce7644152344de630ffd80b5b", kill_on_drop: false }`
[INFO] [stdout] 3c7f5ef7ff217e6081ff17c6826400a113f7e5fce7644152344de630ffd80b5b