[INFO] fetching crate async-mutex 1.4.0...
[INFO] checking async-mutex-1.4.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate async-mutex 1.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async-mutex 1.4.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-mutex 1.4.0
[INFO] finished tweaking crates.io crate async-mutex 1.4.0
[INFO] tweaked toml for crates.io crate async-mutex 1.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate async-mutex 1.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-lite v1.8.0
[INFO] [stderr]   Downloaded async-global-executor v1.2.1
[INFO] [stderr]   Downloaded async-std v1.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2ff7ce1e8158c8f5ae82a8b40d4b2cc1c74f6289524c9a8a538e8221daf5104
[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" "a2ff7ce1e8158c8f5ae82a8b40d4b2cc1c74f6289524c9a8a538e8221daf5104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2ff7ce1e8158c8f5ae82a8b40d4b2cc1c74f6289524c9a8a538e8221daf5104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ff7ce1e8158c8f5ae82a8b40d4b2cc1c74f6289524c9a8a538e8221daf5104", kill_on_drop: false }`
[INFO] [stdout] a2ff7ce1e8158c8f5ae82a8b40d4b2cc1c74f6289524c9a8a538e8221daf5104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b54c11008c05490538d5dd7c7b670e5b013bbbf8658352db3fa461897af3a67e
[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" "b54c11008c05490538d5dd7c7b670e5b013bbbf8658352db3fa461897af3a67e", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking async-mutex v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking async-channel v1.4.2
[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/lib.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |             match self.state.compare_and_swap(0, 1, Ordering::Acquire) {
[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/lib.rs:139:30
[INFO] [stdout]     |
[INFO] [stdout] 139 |             match self.state.compare_and_swap(0, 1, Ordering::Acquire) {
[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/lib.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |             match self.state.compare_and_swap(2, 2 | 1, Ordering::Acquire) {
[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/lib.rs:220:23
[INFO] [stdout]     |
[INFO] [stdout] 220 |         if self.state.compare_and_swap(0, 1, Ordering::Acquire) == 0 {
[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/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |         if self.state.compare_and_swap(0, 1, Ordering::Acquire) == 0 {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-global-executor v1.2.1
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures v0.3.5
[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/lib.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |             match self.state.compare_and_swap(0, 1, Ordering::Acquire) {
[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/lib.rs:139:30
[INFO] [stdout]     |
[INFO] [stdout] 139 |             match self.state.compare_and_swap(0, 1, Ordering::Acquire) {
[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/lib.rs:178:30
[INFO] [stdout]     |
[INFO] [stdout] 178 |             match self.state.compare_and_swap(2, 2 | 1, Ordering::Acquire) {
[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/lib.rs:220:23
[INFO] [stdout]     |
[INFO] [stdout] 220 |         if self.state.compare_and_swap(0, 1, Ordering::Acquire) == 0 {
[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/lib.rs:293:23
[INFO] [stdout]     |
[INFO] [stdout] 293 |         if self.state.compare_and_swap(0, 1, Ordering::Acquire) == 0 {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.37s
[INFO] running `Command { std: "docker" "inspect" "b54c11008c05490538d5dd7c7b670e5b013bbbf8658352db3fa461897af3a67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54c11008c05490538d5dd7c7b670e5b013bbbf8658352db3fa461897af3a67e", kill_on_drop: false }`
[INFO] [stdout] b54c11008c05490538d5dd7c7b670e5b013bbbf8658352db3fa461897af3a67e