[INFO] fetching crate shared_cell 0.5.0...
[INFO] checking shared_cell-0.5.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate shared_cell 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate shared_cell 0.5.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shared_cell 0.5.0
[INFO] finished tweaking crates.io crate shared_cell 0.5.0
[INFO] tweaked toml for crates.io crate shared_cell 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate shared_cell 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.32
[INFO] [stderr]   Downloaded async_main_macro v0.4.0
[INFO] [stderr]   Downloaded async_main v0.4.0
[INFO] [stderr]   Downloaded whisk v0.12.0
[INFO] [stderr]   Downloaded pasts v0.14.3
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded tokio v1.30.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6067cbf3cf68fe651247fbb12b0b13d777a5017f28306f471b26df94a48d247b
[INFO] running `Command { std: "docker" "start" "-a" "6067cbf3cf68fe651247fbb12b0b13d777a5017f28306f471b26df94a48d247b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6067cbf3cf68fe651247fbb12b0b13d777a5017f28306f471b26df94a48d247b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6067cbf3cf68fe651247fbb12b0b13d777a5017f28306f471b26df94a48d247b", kill_on_drop: false }`
[INFO] [stdout] 6067cbf3cf68fe651247fbb12b0b13d777a5017f28306f471b26df94a48d247b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3deb68e3dff733aa111ea290bdc1f0451522e009abad12dfbb3c79256d30562c
[INFO] running `Command { std: "docker" "start" "-a" "3deb68e3dff733aa111ea290bdc1f0451522e009abad12dfbb3c79256d30562c", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling async_main_macro v0.4.0
[INFO] [stderr]     Checking whisk v0.12.0
[INFO] [stderr]     Checking pasts v0.14.3
[INFO] [stderr]     Checking shared_cell v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]    --> src/task_group.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 list.swap_remove(task);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.30.0
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking async_main v0.4.0
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]    --> src/task_group.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 list.swap_remove(task);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` 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 4.33s
[INFO] running `Command { std: "docker" "inspect" "3deb68e3dff733aa111ea290bdc1f0451522e009abad12dfbb3c79256d30562c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3deb68e3dff733aa111ea290bdc1f0451522e009abad12dfbb3c79256d30562c", kill_on_drop: false }`
[INFO] [stdout] 3deb68e3dff733aa111ea290bdc1f0451522e009abad12dfbb3c79256d30562c