[INFO] fetching crate pairlock 0.1.0...
[INFO] checking pairlock-0.1.0 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate pairlock 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate pairlock 0.1.0 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pairlock 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate pairlock 0.1.0
[INFO] tweaked toml for crates.io crate pairlock 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d846ba27eb5128c4657d825eca372684009dc61f610d36b305e4597eca34feb
[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" "9d846ba27eb5128c4657d825eca372684009dc61f610d36b305e4597eca34feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d846ba27eb5128c4657d825eca372684009dc61f610d36b305e4597eca34feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d846ba27eb5128c4657d825eca372684009dc61f610d36b305e4597eca34feb", kill_on_drop: false }`
[INFO] [stdout] 9d846ba27eb5128c4657d825eca372684009dc61f610d36b305e4597eca34feb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 253798650a2b98ad0d1eeab22a0c3910c90ec9b36e80b9e294a46bcc5c858f98
[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" "253798650a2b98ad0d1eeab22a0c3910c90ec9b36e80b9e294a46bcc5c858f98", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking pairlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> pairlock.rs:461:29
[INFO] [stdout]     |
[INFO] [stdout] 461 |         fmtr.write_str(self.description())
[INFO] [stdout]     |                             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> tests.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::atomic::{AtomicUsize, Ordering, 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]   --> tests.rs:81:33
[INFO] [stdout]    |
[INFO] [stdout] 81 |     static DROPS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated constant: `AtomicUsize::new(0)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> benches/race_detection.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use test::{Bencher, black_box};
[INFO] [stdout]   |                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> pairlock.rs:461:29
[INFO] [stdout]     |
[INFO] [stdout] 461 |         fmtr.write_str(self.description())
[INFO] [stdout]     |                             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "253798650a2b98ad0d1eeab22a0c3910c90ec9b36e80b9e294a46bcc5c858f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "253798650a2b98ad0d1eeab22a0c3910c90ec9b36e80b9e294a46bcc5c858f98", kill_on_drop: false }`
[INFO] [stdout] 253798650a2b98ad0d1eeab22a0c3910c90ec9b36e80b9e294a46bcc5c858f98