[INFO] fetching crate vial 0.1.9...
[INFO] checking vial-0.1.9 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate vial 0.1.9 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate vial 0.1.9 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vial 0.1.9
[INFO] removed 6 missing examples
[INFO] finished tweaking crates.io crate vial 0.1.9
[INFO] tweaked toml for crates.io crate vial 0.1.9 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate vial 0.1.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77b4d2b011318282cc3c65a033a62b55e08c78a8a81ceed2de0c348e44b990a8
[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" "77b4d2b011318282cc3c65a033a62b55e08c78a8a81ceed2de0c348e44b990a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77b4d2b011318282cc3c65a033a62b55e08c78a8a81ceed2de0c348e44b990a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77b4d2b011318282cc3c65a033a62b55e08c78a8a81ceed2de0c348e44b990a8", kill_on_drop: false }`
[INFO] [stdout] 77b4d2b011318282cc3c65a033a62b55e08c78a8a81ceed2de0c348e44b990a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 5c148b931b9db53b98b01aacfa72472c20c626871a8690aebea0b4270eaa4a7d
[INFO] running `Command { std: "docker" "start" "-a" "5c148b931b9db53b98b01aacfa72472c20c626871a8690aebea0b4270eaa4a7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling vial v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking libc-strftime v0.2.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stdout] warning: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/request.rs:303:11
[INFO] [stdout]     |
[INFO] [stdout] 303 |     #[doc(Hidden)]
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/request.rs:303:11
[INFO] [stdout]     |
[INFO] [stdout] 303 |     #[doc(Hidden)]
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/cache.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |         while self.mutex.compare_and_swap(0, 1, Ordering::SeqCst) != 0 {}
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/cache.rs:75:28
[INFO] [stdout]    |
[INFO] [stdout] 75 |         assert!(self.mutex.compare_and_swap(1, 0, Ordering::SeqCst) == 1);
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/cache.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 70 |         while self.mutex.compare_and_swap(0, 1, Ordering::SeqCst) != 0 {}
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/cache.rs:75:28
[INFO] [stdout]    |
[INFO] [stdout] 75 |         assert!(self.mutex.compare_and_swap(1, 0, Ordering::SeqCst) == 1);
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "5c148b931b9db53b98b01aacfa72472c20c626871a8690aebea0b4270eaa4a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c148b931b9db53b98b01aacfa72472c20c626871a8690aebea0b4270eaa4a7d", kill_on_drop: false }`
[INFO] [stdout] 5c148b931b9db53b98b01aacfa72472c20c626871a8690aebea0b4270eaa4a7d