[INFO] fetching crate mpmc 0.1.5...
[INFO] checking mpmc-0.1.5 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate mpmc 0.1.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mpmc 0.1.5 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mpmc 0.1.5
[INFO] finished tweaking crates.io crate mpmc 0.1.5
[INFO] tweaked toml for crates.io crate mpmc 0.1.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 972235f6a4a7b4fc9f333fc13aebc7624a1612fcb9ecfd5252c58fdfba285fb7
[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" "972235f6a4a7b4fc9f333fc13aebc7624a1612fcb9ecfd5252c58fdfba285fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "972235f6a4a7b4fc9f333fc13aebc7624a1612fcb9ecfd5252c58fdfba285fb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972235f6a4a7b4fc9f333fc13aebc7624a1612fcb9ecfd5252c58fdfba285fb7", kill_on_drop: false }`
[INFO] [stdout] 972235f6a4a7b4fc9f333fc13aebc7624a1612fcb9ecfd5252c58fdfba285fb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a439c7e1e1b2c7848d5f27b35c57b7aa051ffa036a49a4c5b6a021437d275d0
[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" "4a439c7e1e1b2c7848d5f27b35c57b7aa051ffa036a49a4c5b6a021437d275d0", kill_on_drop: false }`
[INFO] [stderr]     Checking mpmc v0.1.5 (/opt/rustwide/workdir)
[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:110:52
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 let enqueue_pos = self.enqueue_pos.compare_and_swap(pos, pos + 1, Relaxed);
[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:137:52
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let dequeue_pos = self.dequeue_pos.compare_and_swap(pos, pos + 1, Relaxed);
[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:110:52
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 let enqueue_pos = self.enqueue_pos.compare_and_swap(pos, pos + 1, Relaxed);
[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:137:52
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 let dequeue_pos = self.dequeue_pos.compare_and_swap(pos, pos + 1, Relaxed);
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "4a439c7e1e1b2c7848d5f27b35c57b7aa051ffa036a49a4c5b6a021437d275d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a439c7e1e1b2c7848d5f27b35c57b7aa051ffa036a49a4c5b6a021437d275d0", kill_on_drop: false }`
[INFO] [stdout] 4a439c7e1e1b2c7848d5f27b35c57b7aa051ffa036a49a4c5b6a021437d275d0