[INFO] fetching crate proptest 1.4.0...
[INFO] checking proptest-1.4.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[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 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 484b31c77cbb9d39975e22a2a3764e128c6b312628cbbaeaf25c04a68ec97715
[INFO] running `Command { std: "docker" "start" "-a" "484b31c77cbb9d39975e22a2a3764e128c6b312628cbbaeaf25c04a68ec97715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "484b31c77cbb9d39975e22a2a3764e128c6b312628cbbaeaf25c04a68ec97715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484b31c77cbb9d39975e22a2a3764e128c6b312628cbbaeaf25c04a68ec97715", kill_on_drop: false }`
[INFO] [stdout] 484b31c77cbb9d39975e22a2a3764e128c6b312628cbbaeaf25c04a68ec97715
[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=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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 531bfd26016616c302cab2e59bc4dd01f7080ec2513d6e1c04a50a9713cce89f
[INFO] running `Command { std: "docker" "start" "-a" "531bfd26016616c302cab2e59bc4dd01f7080ec2513d6e1c04a50a9713cce89f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.7.3
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[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] [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] 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: 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" "531bfd26016616c302cab2e59bc4dd01f7080ec2513d6e1c04a50a9713cce89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531bfd26016616c302cab2e59bc4dd01f7080ec2513d6e1c04a50a9713cce89f", kill_on_drop: false }`
[INFO] [stdout] 531bfd26016616c302cab2e59bc4dd01f7080ec2513d6e1c04a50a9713cce89f
