[INFO] fetching crate cosync 0.2.1...
[INFO] checking cosync-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate cosync 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cosync 0.2.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cosync 0.2.1
[INFO] finished tweaking crates.io crate cosync 0.2.1
[INFO] tweaked toml for crates.io crate cosync 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d598d597bde509d5b91435e47af7b76e99562cba9943d611952253815aa8c50
[INFO] running `Command { std: "docker" "start" "-a" "6d598d597bde509d5b91435e47af7b76e99562cba9943d611952253815aa8c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d598d597bde509d5b91435e47af7b76e99562cba9943d611952253815aa8c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d598d597bde509d5b91435e47af7b76e99562cba9943d611952253815aa8c50", kill_on_drop: false }`
[INFO] [stdout] 6d598d597bde509d5b91435e47af7b76e99562cba9943d611952253815aa8c50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d4d19d0ff650e75946ecd3d1b79e5d4092675d0ab398ba5f0eed47013305ca
[INFO] running `Command { std: "docker" "start" "-a" "a4d4d19d0ff650e75946ecd3d1b79e5d4092675d0ab398ba5f0eed47013305ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking winnow v0.6.18
[INFO] [stderr]    Compiling trybuild v1.0.99
[INFO] [stderr]     Checking serde_spanned v0.6.7
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking cosync v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `AssertSync` is never used
[INFO] [stdout]    --> src/futures/atomic_waker.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 149 |         trait AssertSync: Sync {}
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking toml_edit v0.22.20
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stdout] warning: trait `AssertSync` is never used
[INFO] [stdout]    --> src/futures/atomic_waker.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 149 |         trait AssertSync: Sync {}
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.28s
[INFO] running `Command { std: "docker" "inspect" "a4d4d19d0ff650e75946ecd3d1b79e5d4092675d0ab398ba5f0eed47013305ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d4d19d0ff650e75946ecd3d1b79e5d4092675d0ab398ba5f0eed47013305ca", kill_on_drop: false }`
[INFO] [stdout] a4d4d19d0ff650e75946ecd3d1b79e5d4092675d0ab398ba5f0eed47013305ca