[INFO] fetching crate suspend-channel 0.1.0...
[INFO] checking suspend-channel-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate suspend-channel 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate suspend-channel 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate suspend-channel 0.1.0
[INFO] finished tweaking crates.io crate suspend-channel 0.1.0
[INFO] tweaked toml for crates.io crate suspend-channel 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded suspend-core v0.1.0
[INFO] [stderr]   Downloaded maybe-cell v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7620b38366374d9bcd14da35fd14914ddfe142e53854fd17a43916dd3594087
[INFO] running `Command { std: "docker" "start" "-a" "e7620b38366374d9bcd14da35fd14914ddfe142e53854fd17a43916dd3594087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7620b38366374d9bcd14da35fd14914ddfe142e53854fd17a43916dd3594087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7620b38366374d9bcd14da35fd14914ddfe142e53854fd17a43916dd3594087", kill_on_drop: false }`
[INFO] [stdout] e7620b38366374d9bcd14da35fd14914ddfe142e53854fd17a43916dd3594087
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8ac961c9bfb10f8bd28b73906d287a89ace76a95603b3bc3ad6062c2d412d6
[INFO] running `Command { std: "docker" "start" "-a" "4b8ac961c9bfb10f8bd28b73906d287a89ace76a95603b3bc3ad6062c2d412d6", kill_on_drop: false }`
[INFO] [stderr]     Checking maybe-cell v0.1.1
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking suspend-core v0.1.0
[INFO] [stderr]     Checking suspend-channel 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]  --> src/channel.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sync::atomic::{fence, spin_loop_hint, AtomicU8, Ordering},
[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]    --> src/channel.rs:365:13
[INFO] [stdout]     |
[INFO] [stdout] 365 |             spin_loop_hint();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]  --> src/channel.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sync::atomic::{fence, spin_loop_hint, AtomicU8, Ordering},
[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]    --> src/channel.rs:365:13
[INFO] [stdout]     |
[INFO] [stdout] 365 |             spin_loop_hint();
[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` profile [unoptimized + debuginfo] target(s) in 7.61s
[INFO] running `Command { std: "docker" "inspect" "4b8ac961c9bfb10f8bd28b73906d287a89ace76a95603b3bc3ad6062c2d412d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8ac961c9bfb10f8bd28b73906d287a89ace76a95603b3bc3ad6062c2d412d6", kill_on_drop: false }`
[INFO] [stdout] 4b8ac961c9bfb10f8bd28b73906d287a89ace76a95603b3bc3ad6062c2d412d6