[INFO] fetching crate simple-signal 1.1.1...
[INFO] checking simple-signal-1.1.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate simple-signal 1.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate simple-signal 1.1.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-signal 1.1.1
[INFO] finished tweaking crates.io crate simple-signal 1.1.1
[INFO] tweaked toml for crates.io crate simple-signal 1.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d758d1e85823737cd3a7c8d0a5398fc1e17d9baf00c7b9bb6bd47e3d937e773e
[INFO] running `Command { std: "docker" "start" "-a" "d758d1e85823737cd3a7c8d0a5398fc1e17d9baf00c7b9bb6bd47e3d937e773e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d758d1e85823737cd3a7c8d0a5398fc1e17d9baf00c7b9bb6bd47e3d937e773e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d758d1e85823737cd3a7c8d0a5398fc1e17d9baf00c7b9bb6bd47e3d937e773e", kill_on_drop: false }`
[INFO] [stdout] d758d1e85823737cd3a7c8d0a5398fc1e17d9baf00c7b9bb6bd47e3d937e773e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2031371c1a15e86bb6f7040d345e473fe0c7911bc4c27282af574dac856bcbbb
[INFO] running `Command { std: "docker" "start" "-a" "2031371c1a15e86bb6f7040d345e473fe0c7911bc4c27282af574dac856bcbbb", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking simple-signal v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:45:36
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub static MASK: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub static MASK: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |                                    ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:45:36
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub static MASK: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub static MASK: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |                                    ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/lib.rs:79:38
[INFO] [stdout]    |
[INFO] [stdout] 79 |             if super::features::MASK.compare_and_swap(prev_mask, new_mask, Ordering::Relaxed) == new_mask {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/lib.rs:79:38
[INFO] [stdout]    |
[INFO] [stdout] 79 |             if super::features::MASK.compare_and_swap(prev_mask, new_mask, Ordering::Relaxed) == new_mask {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let _ = CVAR.wait(MUTEX.lock().unwrap());
[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] 124 |                 let _unused = CVAR.wait(MUTEX.lock().unwrap());
[INFO] [stdout]     |                     ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 drop(CVAR.wait(MUTEX.lock().unwrap()));
[INFO] [stdout]     |                 ~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let _ = CVAR.wait(MUTEX.lock().unwrap());
[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] 124 |                 let _unused = CVAR.wait(MUTEX.lock().unwrap());
[INFO] [stdout]     |                     ~~~~~~~
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 drop(CVAR.wait(MUTEX.lock().unwrap()));
[INFO] [stdout]     |                 ~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple-signal` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `simple-signal` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2031371c1a15e86bb6f7040d345e473fe0c7911bc4c27282af574dac856bcbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2031371c1a15e86bb6f7040d345e473fe0c7911bc4c27282af574dac856bcbbb", kill_on_drop: false }`
[INFO] [stdout] 2031371c1a15e86bb6f7040d345e473fe0c7911bc4c27282af574dac856bcbbb