[INFO] cloning repository https://github.com/WilliamVenner/gm_async_write
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilliamVenner/gm_async_write" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_async_write", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_async_write'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d1cbca330a06025faf7fdc27a17766b54662846
[INFO] checking WilliamVenner/gm_async_write against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_async_write" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WilliamVenner/gm_async_write on toolchain 8ea250bdb76176ecb0225baa34aa634b024ae0e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/WilliamVenner/gm_async_write
[INFO] finished tweaking git repo https://github.com/WilliamVenner/gm_async_write
[INFO] tweaked toml for git repo https://github.com/WilliamVenner/gm_async_write written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/WilliamVenner/gm_async_write already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 129c67f4493957345f9891802501d6965beed8a216ee5cdafa27c58d9e9fd454
[INFO] running `Command { std: "docker" "start" "-a" "129c67f4493957345f9891802501d6965beed8a216ee5cdafa27c58d9e9fd454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "129c67f4493957345f9891802501d6965beed8a216ee5cdafa27c58d9e9fd454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "129c67f4493957345f9891802501d6965beed8a216ee5cdafa27c58d9e9fd454", kill_on_drop: false }`
[INFO] [stdout] 129c67f4493957345f9891802501d6965beed8a216ee5cdafa27c58d9e9fd454
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc9e24c6225c8d499bbbe7bfc7ae516fa04f78c0c6bcd8de2207892658760b8e
[INFO] running `Command { std: "docker" "start" "-a" "dc9e24c6225c8d499bbbe7bfc7ae516fa04f78c0c6bcd8de2207892658760b8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking path-clean v0.1.0
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cstr v0.2.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking gm_async_write v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0391]: cycle detected when type-checking `worker::spawn`
[INFO] [stdout]    --> src/worker.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     rt.spawn(async move {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ...which requires evaluating trait selection obligation `[generator interior@src/worker.rs:110:22: 116:3]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires elaborating drops for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires borrow-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires processing `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires processing MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires unsafety-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires building MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires type-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout]     = note: ...which again requires type-checking `worker::spawn`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `worker::spawn`
[INFO] [stdout]    --> src/worker.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     rt.spawn(async move {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ...which requires evaluating trait selection obligation `[generator interior@src/worker.rs:110:22: 116:3]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires elaborating drops for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires borrow-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires processing `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires processing MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires unsafety-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires building MIR for `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] note: ...which requires type-checking `worker::spawn::{closure#0}`...
[INFO] [stdout]    --> src/worker.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |       rt.spawn(async move {
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 111 | |         dbg!("worker thread started");
[INFO] [stdout] 112 | |         while let Some(job) = rx.recv().await {
[INFO] [stdout] 113 | |             tokio::task::spawn(process_job(job));
[INFO] [stdout] 114 | |         }
[INFO] [stdout] 115 | |         dbg!("worker thread shutdown");
[INFO] [stdout] 116 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout]     = note: ...which again requires type-checking `worker::spawn`, completing the cycle
[INFO] [stdout]     = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gm_async_write` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gm_async_write` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dc9e24c6225c8d499bbbe7bfc7ae516fa04f78c0c6bcd8de2207892658760b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc9e24c6225c8d499bbbe7bfc7ae516fa04f78c0c6bcd8de2207892658760b8e", kill_on_drop: false }`
[INFO] [stdout] dc9e24c6225c8d499bbbe7bfc7ae516fa04f78c0c6bcd8de2207892658760b8e