[INFO] fetching crate proptest 1.4.0...
[INFO] checking proptest-1.4.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate proptest 1.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate proptest 1.4.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proptest 1.4.0
[INFO] finished tweaking crates.io crate proptest 1.4.0
[INFO] tweaked toml for crates.io crate proptest 1.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate proptest 1.4.0 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x86 v0.52.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 870134c35d2e18ab02f356dbea9251fb13ecb82905ffa2978b6e3f22a289a320
[INFO] running `Command { std: "docker" "start" "-a" "870134c35d2e18ab02f356dbea9251fb13ecb82905ffa2978b6e3f22a289a320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "870134c35d2e18ab02f356dbea9251fb13ecb82905ffa2978b6e3f22a289a320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "870134c35d2e18ab02f356dbea9251fb13ecb82905ffa2978b6e3f22a289a320", kill_on_drop: false }`
[INFO] [stdout] 870134c35d2e18ab02f356dbea9251fb13ecb82905ffa2978b6e3f22a289a320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d489a24d6b020cfdd3d38f5fdc30f086bed1758b867dc92caeca7e0908c3c6
[INFO] running `Command { std: "docker" "start" "-a" "a7d489a24d6b020cfdd3d38f5fdc30f086bed1758b867dc92caeca7e0908c3c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking regex-syntax v0.7.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::lazy::*`
[INFO] [stdout]   --> src/strategy/mod.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use self::lazy::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::noop::*`
[INFO] [stdout]   --> src/test_runner/failure_persistence/mod.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::noop::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/test_runner/mod.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | mod failure_persistence;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stdout] warning: unused import: `self::lazy::*`
[INFO] [stdout]   --> src/strategy/mod.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub use self::lazy::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::noop::*`
[INFO] [stdout]   --> src/test_runner/failure_persistence/mod.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use self::noop::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/arbitrary/_std/sync.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[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] 81 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |          ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/arbitrary/_std/sync.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |          ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proptest` (lib) due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/arbitrary/_std/sync.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[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] 81 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |          ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/arbitrary/_std/sync.rs:89:10
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |          ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proptest` (lib test) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a7d489a24d6b020cfdd3d38f5fdc30f086bed1758b867dc92caeca7e0908c3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d489a24d6b020cfdd3d38f5fdc30f086bed1758b867dc92caeca7e0908c3c6", kill_on_drop: false }`
[INFO] [stdout] a7d489a24d6b020cfdd3d38f5fdc30f086bed1758b867dc92caeca7e0908c3c6
