[INFO] fetching crate shared-mutex 0.3.1...
[INFO] testing shared-mutex-0.3.1 against nightly-2024-10-28 for randomize-layout
[INFO] extracting crate shared-mutex 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate shared-mutex 0.3.1 on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shared-mutex 0.3.1
[INFO] finished tweaking crates.io crate shared-mutex 0.3.1
[INFO] tweaked toml for crates.io crate shared-mutex 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding scoped-pool v0.1.10 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scopeguard v0.1.2
[INFO] [stderr]   Downloaded variance v0.1.3
[INFO] [stderr]   Downloaded scoped-pool v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d6d44e6c216458120172a17766d43f7c135cc6b49675e515eec3c8a1e21b326
[INFO] running `Command { std: "docker" "start" "-a" "9d6d44e6c216458120172a17766d43f7c135cc6b49675e515eec3c8a1e21b326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d6d44e6c216458120172a17766d43f7c135cc6b49675e515eec3c8a1e21b326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d6d44e6c216458120172a17766d43f7c135cc6b49675e515eec3c8a1e21b326", kill_on_drop: false }`
[INFO] [stdout] 9d6d44e6c216458120172a17766d43f7c135cc6b49675e515eec3c8a1e21b326
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02d65976997f1faf232882bf661e7e91e5d9c3159cc745c5fdae49bebe3c8c67
[INFO] running `Command { std: "docker" "start" "-a" "02d65976997f1faf232882bf661e7e91e5d9c3159cc745c5fdae49bebe3c8c67", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling poison v0.1.0
[INFO] [stderr]    Compiling shared-mutex v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 |             Ok(try!(unsafe { SharedMutexReadGuard::new(self) }))
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:92:16
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Ok(try!(unsafe { SharedMutexWriteGuard::new(self) }))
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         unsafe { self.data.into_inner().into_inner() }
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/raw.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let _ = self.unlock_read_to();
[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] 141 |         let _unused = self.unlock_read_to();
[INFO] [stdout]     |             ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 141 |         drop(self.unlock_read_to());
[INFO] [stdout]     |         ~~~~~                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/raw.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _ = self.unlock_write_to();
[INFO] [stdout]     |             ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _unused = self.unlock_write_to();
[INFO] [stdout]     |             ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 173 |         drop(self.unlock_write_to());
[INFO] [stdout]     |         ~~~~~                      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shared-mutex` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "02d65976997f1faf232882bf661e7e91e5d9c3159cc745c5fdae49bebe3c8c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d65976997f1faf232882bf661e7e91e5d9c3159cc745c5fdae49bebe3c8c67", kill_on_drop: false }`
[INFO] [stdout] 02d65976997f1faf232882bf661e7e91e5d9c3159cc745c5fdae49bebe3c8c67
