[INFO] fetching crate pairlock 0.1.0...
[INFO] checking pairlock-0.1.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate pairlock 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pairlock 0.1.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 43191e7b43e0c71d2485fb88122c24e3f408e4d210995264faad2850d85ebdb1
[INFO] running `Command { std: "docker" "start" "-a" "43191e7b43e0c71d2485fb88122c24e3f408e4d210995264faad2850d85ebdb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43191e7b43e0c71d2485fb88122c24e3f408e4d210995264faad2850d85ebdb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43191e7b43e0c71d2485fb88122c24e3f408e4d210995264faad2850d85ebdb1", kill_on_drop: false }`
[INFO] [stdout] 43191e7b43e0c71d2485fb88122c24e3f408e4d210995264faad2850d85ebdb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e65d49f3b1f0d34dce9bdd2215e1a75880ee9fe640b50a120edc746c47c5fee
[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" "8e65d49f3b1f0d34dce9bdd2215e1a75880ee9fe640b50a120edc746c47c5fee", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking pairlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> pairlock.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::atomic::{AtomicUsize,fence, spin_loop_hint};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> pairlock.rs:196:21
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     spin_loop_hint();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[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] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> pairlock.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::atomic::{AtomicUsize,fence, spin_loop_hint};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> pairlock.rs:196:21
[INFO] [stdout]     |
[INFO] [stdout] 196 |                     spin_loop_hint();
[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]  --> 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: 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] 
[INFO] [stdout] warning: 3 warnings emitted
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "8e65d49f3b1f0d34dce9bdd2215e1a75880ee9fe640b50a120edc746c47c5fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e65d49f3b1f0d34dce9bdd2215e1a75880ee9fe640b50a120edc746c47c5fee", kill_on_drop: false }`
[INFO] [stdout] 8e65d49f3b1f0d34dce9bdd2215e1a75880ee9fe640b50a120edc746c47c5fee