[INFO] fetching crate want 0.3.0...
[INFO] checking want-0.3.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate want 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate want 0.3.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 664e70951286ebbaab3be7ccb7308e030f9f57dc5e490b350d7947aaf4b58539
[INFO] running `Command { std: "docker" "start" "-a" "664e70951286ebbaab3be7ccb7308e030f9f57dc5e490b350d7947aaf4b58539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "664e70951286ebbaab3be7ccb7308e030f9f57dc5e490b350d7947aaf4b58539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "664e70951286ebbaab3be7ccb7308e030f9f57dc5e490b350d7947aaf4b58539", kill_on_drop: false }`
[INFO] [stdout] 664e70951286ebbaab3be7ccb7308e030f9f57dc5e490b350d7947aaf4b58539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cf5a90e067893988bb05c31670ac9dd3161d96613bfd47d38ca7bf37e6e3d40
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3cf5a90e067893988bb05c31670ac9dd3161d96613bfd47d38ca7bf37e6e3d40", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking want v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated item '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] [stderr] error: could not compile `want`.
[INFO] [stdout] error: use of deprecated item '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] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[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" "3cf5a90e067893988bb05c31670ac9dd3161d96613bfd47d38ca7bf37e6e3d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf5a90e067893988bb05c31670ac9dd3161d96613bfd47d38ca7bf37e6e3d40", kill_on_drop: false }`
[INFO] [stdout] 3cf5a90e067893988bb05c31670ac9dd3161d96613bfd47d38ca7bf37e6e3d40