[INFO] cloning repository https://github.com/Thoralf-M/neon-process-hangs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Thoralf-M/neon-process-hangs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThoralf-M%2Fneon-process-hangs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThoralf-M%2Fneon-process-hangs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5dc5874abd31c353280ea12febc9712675dc152d
[INFO] testing Thoralf-M/neon-process-hangs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThoralf-M%2Fneon-process-hangs" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Thoralf-M/neon-process-hangs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Thoralf-M/neon-process-hangs
[INFO] finished tweaking git repo https://github.com/Thoralf-M/neon-process-hangs
[INFO] tweaked toml for git repo https://github.com/Thoralf-M/neon-process-hangs written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/Thoralf-M/neon-process-hangs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 900700deb81188969eef6be2c07c00492e28a970803a45f363ca519e82202ba9
[INFO] running `Command { std: "docker" "start" "-a" "900700deb81188969eef6be2c07c00492e28a970803a45f363ca519e82202ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "900700deb81188969eef6be2c07c00492e28a970803a45f363ca519e82202ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900700deb81188969eef6be2c07c00492e28a970803a45f363ca519e82202ba9", kill_on_drop: false }`
[INFO] [stdout] 900700deb81188969eef6be2c07c00492e28a970803a45f363ca519e82202ba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9b4c91689d5bb3e5993a64cd4525d5281c3d371ed71a018360ff57609e4dd8c
[INFO] running `Command { std: "docker" "start" "-a" "f9b4c91689d5bb3e5993a64cd4525d5281c3d371ed71a018360ff57609e4dd8c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling neon-build v0.9.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling cslice v0.2.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling neon-runtime v0.9.0
[INFO] [stderr]    Compiling neon v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling neon-macros v0.9.0
[INFO] [stderr]    Compiling neon-process-hangs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `channel`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     channel: Channel,
[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 [unoptimized + debuginfo] target(s) in 51.43s
[INFO] running `Command { std: "docker" "inspect" "f9b4c91689d5bb3e5993a64cd4525d5281c3d371ed71a018360ff57609e4dd8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9b4c91689d5bb3e5993a64cd4525d5281c3d371ed71a018360ff57609e4dd8c", kill_on_drop: false }`
[INFO] [stdout] f9b4c91689d5bb3e5993a64cd4525d5281c3d371ed71a018360ff57609e4dd8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a426b534c8e9b84c46ff4d3d9050c1c7e8c2dfcf355c2e0b55449f41d67ea38
[INFO] running `Command { std: "docker" "start" "-a" "7a426b534c8e9b84c46ff4d3d9050c1c7e8c2dfcf355c2e0b55449f41d67ea38", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling neon-process-hangs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `channel`
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     channel: Channel,
[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 test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "7a426b534c8e9b84c46ff4d3d9050c1c7e8c2dfcf355c2e0b55449f41d67ea38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a426b534c8e9b84c46ff4d3d9050c1c7e8c2dfcf355c2e0b55449f41d67ea38", kill_on_drop: false }`
[INFO] [stdout] 7a426b534c8e9b84c46ff4d3d9050c1c7e8c2dfcf355c2e0b55449f41d67ea38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b9a97b74f76fd8d2dd7db68234429d92afdc0c7ad35cf59d08eaeceda4b08c2
[INFO] running `Command { std: "docker" "start" "-a" "1b9a97b74f76fd8d2dd7db68234429d92afdc0c7ad35cf59d08eaeceda4b08c2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `channel`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     channel: Channel,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `neon-process-hangs` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/neon_process_hangs-98e78024f163c8a3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b9a97b74f76fd8d2dd7db68234429d92afdc0c7ad35cf59d08eaeceda4b08c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b9a97b74f76fd8d2dd7db68234429d92afdc0c7ad35cf59d08eaeceda4b08c2", kill_on_drop: false }`
[INFO] [stdout] 1b9a97b74f76fd8d2dd7db68234429d92afdc0c7ad35cf59d08eaeceda4b08c2