[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 try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frowans329%2Fhsh" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [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-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/rowans329/hsh on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "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 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded structopt v0.3.21 [INFO] [stderr] Downloaded ripemd320 v0.9.0 [INFO] [stderr] Downloaded shabal v0.3.0 [INFO] [stderr] Downloaded whirlpool v0.9.0 [INFO] [stderr] Downloaded md2 v0.9.0 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded assert_cmd v1.0.3 [INFO] [stderr] Downloaded blowfish v0.8.0 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded gost94 v0.9.1 [INFO] [stderr] Downloaded quick-error v2.0.0 [INFO] [stderr] Downloaded md4 v0.9.0 [INFO] [stderr] Downloaded syn v1.0.53 [INFO] [stderr] Downloaded proptest v1.0.0 [INFO] [stderr] Downloaded b64 v0.4.0 [INFO] [stderr] Downloaded bcrypt v0.10.1 [INFO] [stderr] Downloaded groestl v0.9.0 [INFO] [stderr] Downloaded exitcode v1.1.2 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded streebog v0.9.2 [INFO] [stderr] Downloaded fern v0.6.0 [INFO] [stderr] Downloaded sha-1 v0.9.6 [INFO] [stderr] Downloaded cpufeatures v0.1.1 [INFO] [stderr] Downloaded bstr v0.2.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 112ec887d6bfaa59118592f51cab61d90cd0c298caaa78039591b7d8771ac0ff [INFO] running `Command { std: "docker" "start" "-a" "112ec887d6bfaa59118592f51cab61d90cd0c298caaa78039591b7d8771ac0ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "112ec887d6bfaa59118592f51cab61d90cd0c298caaa78039591b7d8771ac0ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "112ec887d6bfaa59118592f51cab61d90cd0c298caaa78039591b7d8771ac0ff", kill_on_drop: false }` [INFO] [stdout] 112ec887d6bfaa59118592f51cab61d90cd0c298caaa78039591b7d8771ac0ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 21a3a21d6156c3ce5d1cbeee9890d81d70cfdf6381363a572cbdd55d7d876e44 [INFO] running `Command { std: "docker" "start" "-a" "21a3a21d6156c3ce5d1cbeee9890d81d70cfdf6381363a572cbdd55d7d876e44", 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] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling syn v1.0.53 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking cpufeatures v0.1.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking subtle v2.3.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking keccak v0.1.0 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking b64 v0.4.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking bit-vec v0.6.2 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking exitcode v1.1.2 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking quick-error v2.0.0 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking fern v0.6.0 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.5.4 [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 crypto-mac v0.8.0 [INFO] [stderr] Checking ripemd160 v0.9.1 [INFO] [stderr] Checking md-5 v0.9.1 [INFO] [stderr] Checking md4 v0.9.0 [INFO] [stderr] Checking sha3 v0.9.1 [INFO] [stderr] Checking gost94 v0.9.1 [INFO] [stderr] Checking whirlpool v0.9.0 [INFO] [stderr] Checking sha2 v0.9.5 [INFO] [stderr] Checking ripemd320 v0.9.0 [INFO] [stderr] Checking blake2 v0.9.2 [INFO] [stderr] Checking blowfish v0.8.0 [INFO] [stderr] Checking shabal v0.3.0 [INFO] [stderr] Checking groestl v0.9.0 [INFO] [stderr] Checking bcrypt v0.10.1 [INFO] [stderr] Checking sha-1 v0.9.6 [INFO] [stderr] Checking md2 v0.9.0 [INFO] [stderr] Checking streebog v0.9.2 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking predicates v1.0.8 [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] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/format.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | fn lock(&self) -> MutexGuard { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | fn lock(&self) -> MutexGuard<'_, FormatModeInner> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/format.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | fn lock(&self) -> MutexGuard { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 38 | fn lock(&self) -> MutexGuard<'_, FormatModeInner> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [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)]` (part of `#[deny(let_underscore)]`) 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 - let _ = mode.lock(); [INFO] [stdout] 234 + drop(mode.lock()); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `hsh` (lib test) due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "21a3a21d6156c3ce5d1cbeee9890d81d70cfdf6381363a572cbdd55d7d876e44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21a3a21d6156c3ce5d1cbeee9890d81d70cfdf6381363a572cbdd55d7d876e44", kill_on_drop: false }` [INFO] [stdout] 21a3a21d6156c3ce5d1cbeee9890d81d70cfdf6381363a572cbdd55d7d876e44