[INFO] fetching crate proptest 1.4.0...
[INFO] testing proptest-1.4.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate proptest 1.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate proptest 1.4.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "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-1-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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.7.3
[INFO] [stderr]   Downloaded regex-automata v0.3.2
[INFO] [stderr]   Downloaded x86 v0.52.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f12f658bf0bb6f37a054a9d04f9dd9b1e80fa85f30a37bc8dd6889aff46daa35
[INFO] running `Command { std: "docker" "start" "-a" "f12f658bf0bb6f37a054a9d04f9dd9b1e80fa85f30a37bc8dd6889aff46daa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f12f658bf0bb6f37a054a9d04f9dd9b1e80fa85f30a37bc8dd6889aff46daa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12f658bf0bb6f37a054a9d04f9dd9b1e80fa85f30a37bc8dd6889aff46daa35", kill_on_drop: false }`
[INFO] [stdout] f12f658bf0bb6f37a054a9d04f9dd9b1e80fa85f30a37bc8dd6889aff46daa35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7053f1e40d0dc2572e86176c7a52127429134201e631e81926ac326e0e789d7
[INFO] running `Command { std: "docker" "start" "-a" "e7053f1e40d0dc2572e86176c7a52127429134201e631e81926ac326e0e789d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling 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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.36s
[INFO] running `Command { std: "docker" "inspect" "e7053f1e40d0dc2572e86176c7a52127429134201e631e81926ac326e0e789d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7053f1e40d0dc2572e86176c7a52127429134201e631e81926ac326e0e789d7", kill_on_drop: false }`
[INFO] [stdout] e7053f1e40d0dc2572e86176c7a52127429134201e631e81926ac326e0e789d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89e0060dc10cc1965b8b2df505f1783a629e1e873864eff85f675a9b105035fe
[INFO] running `Command { std: "docker" "start" "-a" "89e0060dc10cc1965b8b2df505f1783a629e1e873864eff85f675a9b105035fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.3
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling 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] 
[INFO] [stderr] error: could not compile `proptest` (lib test); 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name proptest --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="bit-set"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="lazy_static"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=6b2ee7c571705f35 -C extra-filename=-6b2ee7c571705f35 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-2950cd7f73dc2423.rlib --extern bit_vec=/opt/rustwide/target/debug/deps/libbit_vec-2de3ffd4ac2f7164.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-7a728921c2553030.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-67076bd63a6ff427.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-7447f9bd8827408d.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-1cc20d9017bef948.rlib --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-34326a85706435ed.rlib --extern rand_xorshift=/opt/rustwide/target/debug/deps/librand_xorshift-1d6e78e8d776ced9.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-d8f8d1cb543e315c.rlib --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-0d266e3910baead0.rlib --extern rusty_fork=/opt/rustwide/target/debug/deps/librusty_fork-fc4934cb1dee5f2e.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-57cce014c477ed0f.rlib --extern unarray=/opt/rustwide/target/debug/deps/libunarray-7afabdf6a808ecad.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "89e0060dc10cc1965b8b2df505f1783a629e1e873864eff85f675a9b105035fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e0060dc10cc1965b8b2df505f1783a629e1e873864eff85f675a9b105035fe", kill_on_drop: false }`
[INFO] [stdout] 89e0060dc10cc1965b8b2df505f1783a629e1e873864eff85f675a9b105035fe
[INFO] testing proptest-1.4.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate proptest 1.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate proptest 1.4.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-1-tc2/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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41a3a1f9daa213350e9d3c1f765d69c04db464f95205f67169bd97efcd75c7ef
[INFO] running `Command { std: "docker" "start" "-a" "41a3a1f9daa213350e9d3c1f765d69c04db464f95205f67169bd97efcd75c7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41a3a1f9daa213350e9d3c1f765d69c04db464f95205f67169bd97efcd75c7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a3a1f9daa213350e9d3c1f765d69c04db464f95205f67169bd97efcd75c7ef", kill_on_drop: false }`
[INFO] [stdout] 41a3a1f9daa213350e9d3c1f765d69c04db464f95205f67169bd97efcd75c7ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53486ea236b86a83340327e4df42b6a9df04825bbe97256d8dc03846a6ccdcb8
[INFO] running `Command { std: "docker" "start" "-a" "53486ea236b86a83340327e4df42b6a9df04825bbe97256d8dc03846a6ccdcb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling 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] [stdout] warning: 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: `#[warn(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] warning: 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] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.12s
[INFO] running `Command { std: "docker" "inspect" "53486ea236b86a83340327e4df42b6a9df04825bbe97256d8dc03846a6ccdcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53486ea236b86a83340327e4df42b6a9df04825bbe97256d8dc03846a6ccdcb8", kill_on_drop: false }`
[INFO] [stdout] 53486ea236b86a83340327e4df42b6a9df04825bbe97256d8dc03846a6ccdcb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4feaadefaf6a01f89f5942179f64b0fa8fa7b8c9cda451700ec81019602dba0
[INFO] running `Command { std: "docker" "start" "-a" "c4feaadefaf6a01f89f5942179f64b0fa8fa7b8c9cda451700ec81019602dba0", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.3
[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] [stdout] warning: 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: `#[warn(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] warning: 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] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling regex-automata v0.3.2
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling 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] 
[INFO] [stdout] warning: 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: `#[warn(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] warning: 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] [stderr] error: could not compile `proptest` (lib test); 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustc --crate-name proptest --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="bit-set"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="lazy_static"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=7df641975f2db54d -C extra-filename=-7df641975f2db54d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-a2a6bff50cba83c5.rlib --extern bit_vec=/opt/rustwide/target/debug/deps/libbit_vec-66b280c55763b85c.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-6980f60bff054089.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-efa3519517df6cf0.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-9d81aa1ba3c02846.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-4e3b2bf2b5d3a7db.rlib --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-664f6f9ba44dab1b.rlib --extern rand_xorshift=/opt/rustwide/target/debug/deps/librand_xorshift-354008655e00de46.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-46238be30f6aaa15.rlib --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-2fba322c2516c6a3.rlib --extern rusty_fork=/opt/rustwide/target/debug/deps/librusty_fork-61bdaecbb3ad48ab.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-7330ccbb57ed15ef.rlib --extern unarray=/opt/rustwide/target/debug/deps/libunarray-bdc0f59c9d4a6872.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c4feaadefaf6a01f89f5942179f64b0fa8fa7b8c9cda451700ec81019602dba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4feaadefaf6a01f89f5942179f64b0fa8fa7b8c9cda451700ec81019602dba0", kill_on_drop: false }`
[INFO] [stdout] c4feaadefaf6a01f89f5942179f64b0fa8fa7b8c9cda451700ec81019602dba0
