[INFO] cloning repository https://github.com/BruceBrown/async_machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BruceBrown/async_machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruceBrown%2Fasync_machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruceBrown%2Fasync_machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65b564b755f92d10c1860b7d05a893719a4e0954
[INFO] checking BruceBrown/async_machine against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruceBrown%2Fasync_machine" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BruceBrown/async_machine 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 git repo https://github.com/BruceBrown/async_machine
[INFO] finished tweaking git repo https://github.com/BruceBrown/async_machine
[INFO] tweaked toml for git repo https://github.com/BruceBrown/async_machine written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BruceBrown/async_machine 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]  Downloading crates ...
[INFO] [stderr]   Downloaded nb-connect v1.0.3
[INFO] [stderr]   Downloaded polling v2.0.2
[INFO] [stderr]   Downloaded async-io v1.3.1
[INFO] [stderr]   Downloaded smol v1.2.5
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded signal-hook v0.3.6
[INFO] [stderr]   Downloaded async-process v1.0.2
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] [stderr]   Downloaded async-net v1.5.0
[INFO] [stderr]   Downloaded vec-arena v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ee2cbf74f76a4218fa697f3531796b042004b05cb3bae006e29d7dfaac43061b
[INFO] running `Command { std: "docker" "start" "-a" "ee2cbf74f76a4218fa697f3531796b042004b05cb3bae006e29d7dfaac43061b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee2cbf74f76a4218fa697f3531796b042004b05cb3bae006e29d7dfaac43061b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2cbf74f76a4218fa697f3531796b042004b05cb3bae006e29d7dfaac43061b", kill_on_drop: false }`
[INFO] [stdout] ee2cbf74f76a4218fa697f3531796b042004b05cb3bae006e29d7dfaac43061b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 474cb4c9d94cb1d2ce38f203abf7bc0223d7f5936027101ce0ccb4b5426f82e5
[INFO] running `Command { std: "docker" "start" "-a" "474cb4c9d94cb1d2ce38f203abf7bc0223d7f5936027101ce0ccb4b5426f82e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.6
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking nb-connect v1.0.3
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking simplelog v0.8.0
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]     Checking async_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `sender` and `executor` are never read
[INFO] [stdout]   --> src/test_message.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MachineSenderTestMessage {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] 46 |     sender: smol::channel::Sender<TestMessage>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     executor: std::sync::Arc<smol::Executor<'static>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MachineSenderTestMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender` and `executor` are never read
[INFO] [stdout]   --> src/test_message.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MachineSenderTestMessage {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] 46 |     sender: smol::channel::Sender<TestMessage>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 47 |     executor: std::sync::Arc<smol::Executor<'static>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MachineSenderTestMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 3.32s
[INFO] running `Command { std: "docker" "inspect" "474cb4c9d94cb1d2ce38f203abf7bc0223d7f5936027101ce0ccb4b5426f82e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474cb4c9d94cb1d2ce38f203abf7bc0223d7f5936027101ce0ccb4b5426f82e5", kill_on_drop: false }`
[INFO] [stdout] 474cb4c9d94cb1d2ce38f203abf7bc0223d7f5936027101ce0ccb4b5426f82e5