[INFO] fetching crate want 0.3.0...
[INFO] checking want-0.3.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate want 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate want 0.3.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate want 0.3.0
[INFO] finished tweaking crates.io crate want 0.3.0
[INFO] tweaked toml for crates.io crate want 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c2d1096cbe5e07585f5e133b582a2f06228a080e627a72e9c3255218fcaf31e
[INFO] running `Command { std: "docker" "start" "-a" "1c2d1096cbe5e07585f5e133b582a2f06228a080e627a72e9c3255218fcaf31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c2d1096cbe5e07585f5e133b582a2f06228a080e627a72e9c3255218fcaf31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2d1096cbe5e07585f5e133b582a2f06228a080e627a72e9c3255218fcaf31e", kill_on_drop: false }`
[INFO] [stdout] 1c2d1096cbe5e07585f5e133b582a2f06228a080e627a72e9c3255218fcaf31e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fee1ce098bf3eedbda90254b1eaba422e8e3d0f91fbbd70f434dc1e938bd148c
[INFO] running `Command { std: "docker" "start" "-a" "fee1ce098bf3eedbda90254b1eaba422e8e3d0f91fbbd70f434dc1e938bd148c", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking want v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated associated function `try_lock::TryLock::<T>::try_lock_order`: This method is actually unsafe because it unsafely allows the use of weaker memory ordering. Please use try_lock_explicit instead
[INFO] [stdout]    --> src/lib.rs:209:63
[INFO] [stdout]     |
[INFO] [stdout] 209 |                     if let Some(mut locked) = self.inner.task.try_lock_order(SeqCst, SeqCst) {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:212:52
[INFO] [stdout]     |
[INFO] [stdout] 212 |                         let old = self.inner.state.compare_and_swap(
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:253:26
[INFO] [stdout]     |
[INFO] [stdout] 253 |         self.inner.state.compare_and_swap(
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `try_lock::TryLock::<T>::try_lock_order`: This method is actually unsafe because it unsafely allows the use of weaker memory ordering. Please use try_lock_explicit instead
[INFO] [stdout]    --> src/lib.rs:352:63
[INFO] [stdout]     |
[INFO] [stdout] 352 |                     if let Some(mut locked) = self.inner.task.try_lock_order(SeqCst, SeqCst) {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `want`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fee1ce098bf3eedbda90254b1eaba422e8e3d0f91fbbd70f434dc1e938bd148c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fee1ce098bf3eedbda90254b1eaba422e8e3d0f91fbbd70f434dc1e938bd148c", kill_on_drop: false }`
[INFO] [stdout] fee1ce098bf3eedbda90254b1eaba422e8e3d0f91fbbd70f434dc1e938bd148c