[INFO] cloning repository https://github.com/joshka/spike-tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshka/spike-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshka%2Fspike-tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshka%2Fspike-tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5048376c1c52c95ce3df9e058c2651cfbec5f6c
[INFO] checking joshka/spike-tokio against try#a3a874232ae0a7586b5fbe7483c5a42e157bd62a for pr-151109
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshka%2Fspike-tokio" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joshka/spike-tokio
[INFO] finished tweaking git repo https://github.com/joshka/spike-tokio
[INFO] tweaked toml for git repo https://github.com/joshka/spike-tokio written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joshka/spike-tokio on toolchain a3a874232ae0a7586b5fbe7483c5a42e157bd62a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joshka/spike-tokio 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" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5388171e8f736c1ae6a193ac1a957300fd167c9858727332259c8e812a4c47a6
[INFO] running `Command { std: "docker" "start" "-a" "5388171e8f736c1ae6a193ac1a957300fd167c9858727332259c8e812a4c47a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5388171e8f736c1ae6a193ac1a957300fd167c9858727332259c8e812a4c47a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5388171e8f736c1ae6a193ac1a957300fd167c9858727332259c8e812a4c47a6", kill_on_drop: false }`
[INFO] [stdout] 5388171e8f736c1ae6a193ac1a957300fd167c9858727332259c8e812a4c47a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a3a874232ae0a7586b5fbe7483c5a42e157bd62a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f224c6326c8fa8f08fa243bbb740b8c2d4248dde475f77da2b002a022f2797ea
[INFO] running `Command { std: "docker" "start" "-a" "f224c6326c8fa8f08fa243bbb740b8c2d4248dde475f77da2b002a022f2797ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.104
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking spike-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/bin/deadlock.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         unreachable!("Task 2 sending message");
[INFO] [stdout]    |         -------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 31 |         tx.send(()).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `tx` is never read
[INFO] [stdout]   --> src/bin/deadlock.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         tx.send(()).unwrap();
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/bin/deadlock.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let (tx, mut rx) = tokio::sync::oneshot::channel();
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/bin/deadlock.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         unreachable!("Task 2 sending message");
[INFO] [stdout]    |         -------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 31 |         tx.send(()).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `tx` is never read
[INFO] [stdout]   --> src/bin/deadlock.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         tx.send(()).unwrap();
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/bin/deadlock.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let (tx, mut rx) = tokio::sync::oneshot::channel();
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `Command { std: "docker" "inspect" "f224c6326c8fa8f08fa243bbb740b8c2d4248dde475f77da2b002a022f2797ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f224c6326c8fa8f08fa243bbb740b8c2d4248dde475f77da2b002a022f2797ea", kill_on_drop: false }`
[INFO] [stdout] f224c6326c8fa8f08fa243bbb740b8c2d4248dde475f77da2b002a022f2797ea