[INFO] cloning repository https://github.com/conradludgate/eurorust-template
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/eurorust-template" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Feurorust-template", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Feurorust-template'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19cb538bac99435dafb91f26dd2546de9d3d8e0c
[INFO] checking conradludgate/eurorust-template against try#ad93f57d532978d6739002a21bc66b45ed22f998 for pr-155418
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Feurorust-template" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/conradludgate/eurorust-template
[INFO] finished tweaking git repo https://github.com/conradludgate/eurorust-template
[INFO] tweaked toml for git repo https://github.com/conradludgate/eurorust-template written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/conradludgate/eurorust-template on toolchain ad93f57d532978d6739002a21bc66b45ed22f998
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/conradludgate/eurorust-template 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" "+ad93f57d532978d6739002a21bc66b45ed22f998" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c55e41435a4e4145e5aa6303b8eb71d7eab249f1df98a99dd0384fad0896f93
[INFO] running `Command { std: "docker" "start" "-a" "8c55e41435a4e4145e5aa6303b8eb71d7eab249f1df98a99dd0384fad0896f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c55e41435a4e4145e5aa6303b8eb71d7eab249f1df98a99dd0384fad0896f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c55e41435a4e4145e5aa6303b8eb71d7eab249f1df98a99dd0384fad0896f93", kill_on_drop: false }`
[INFO] [stdout] 8c55e41435a4e4145e5aa6303b8eb71d7eab249f1df98a99dd0384fad0896f93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ad93f57d532978d6739002a21bc66b45ed22f998" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19087f121de5ebd7adf48b94579906b2318da66013dcfd356d32b7de0019cb4f
[INFO] running `Command { std: "docker" "start" "-a" "19087f121de5ebd7adf48b94579906b2318da66013dcfd356d32b7de0019cb4f", kill_on_drop: false }`
[INFO] [stderr]     Checking project_06_timers v0.0.1 (/opt/rustwide/workdir/projects/06_timers)
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking project_03_mutex v0.0.1 (/opt/rustwide/workdir/projects/03_mutex)
[INFO] [stderr]     Checking project_00_tokio v0.0.1 (/opt/rustwide/workdir/projects/00_tokio)
[INFO] [stderr]     Checking project_02_channel v0.0.1 (/opt/rustwide/workdir/projects/02_channel)
[INFO] [stderr]     Checking project_01_future v0.0.1 (/opt/rustwide/workdir/projects/01_future)
[INFO] [stderr]     Checking project_05_spawner v0.0.1 (/opt/rustwide/workdir/projects/05_spawner)
[INFO] [stderr]     Checking project_04_pollster v0.0.1 (/opt/rustwide/workdir/projects/04_pollster)
[INFO] [stdout] warning: struct `AsyncMutex` is never constructed
[INFO] [stdout]  --> projects/03_mutex/src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct AsyncMutex<T> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsyncMutexGuard` is never constructed
[INFO] [stdout]   --> projects/03_mutex/src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AsyncMutexGuard<'a, T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsyncMutex` is never constructed
[INFO] [stdout]  --> projects/03_mutex/src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct AsyncMutex<T> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsyncMutexGuard` is never constructed
[INFO] [stdout]   --> projects/03_mutex/src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AsyncMutexGuard<'a, T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `Command { std: "docker" "inspect" "19087f121de5ebd7adf48b94579906b2318da66013dcfd356d32b7de0019cb4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19087f121de5ebd7adf48b94579906b2318da66013dcfd356d32b7de0019cb4f", kill_on_drop: false }`
[INFO] [stdout] 19087f121de5ebd7adf48b94579906b2318da66013dcfd356d32b7de0019cb4f