[INFO] updating cached repository https://github.com/Jasperav/ClosureRust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 783c6f617ec7a79751975586784c3a1fb8f50403
[INFO] checking Jasperav/ClosureRust against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasperav%2FClosureRust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jasperav/ClosureRust on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Jasperav/ClosureRust
[INFO] finished tweaking git repo https://github.com/Jasperav/ClosureRust
[INFO] tweaked toml for git repo https://github.com/Jasperav/ClosureRust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jasperav/ClosureRust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a546d36e0a65551a2af67497e8fcdd2e16e280d7d5acfd80b1a84ae0783d9e2
[INFO] running `"docker" "start" "-a" "8a546d36e0a65551a2af67497e8fcdd2e16e280d7d5acfd80b1a84ae0783d9e2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking ws v0.9.1
[INFO] [stderr]     Checking closurerust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: expected a `std::ops::FnOnce<()>` closure, found `()`
[INFO] [stderr]    --> src/main.rs:13:25
[INFO] [stderr]     |
[INFO] [stderr] 13  |       std::thread::spawn( {
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 14  | |         let a = Arc::clone(&is_closed);
[INFO] [stderr] 15  | |         move || connect("127.0.0.1", |c| TestClient(&*a));
[INFO] [stderr] 16  | |     });
[INFO] [stderr]     | |_____^ expected an `FnOnce<()>` closure, found `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::FnOnce<()>` is not implemented for `()`
[INFO] [stderr]     = note: wrap the `()` in a closure with no arguments: `|| { /* code */ }
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `closurerust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: expected a `std::ops::FnOnce<()>` closure, found `()`
[INFO] [stderr]    --> src/main.rs:13:25
[INFO] [stderr]     |
[INFO] [stderr] 13  |       std::thread::spawn( {
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 14  | |         let a = Arc::clone(&is_closed);
[INFO] [stderr] 15  | |         move || connect("127.0.0.1", |c| TestClient(&*a));
[INFO] [stderr] 16  | |     });
[INFO] [stderr]     | |_____^ expected an `FnOnce<()>` closure, found `()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::FnOnce<()>` is not implemented for `()`
[INFO] [stderr]     = note: wrap the `()` in a closure with no arguments: `|| { /* code */ }
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `closurerust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8a546d36e0a65551a2af67497e8fcdd2e16e280d7d5acfd80b1a84ae0783d9e2"`
[INFO] running `"docker" "rm" "-f" "8a546d36e0a65551a2af67497e8fcdd2e16e280d7d5acfd80b1a84ae0783d9e2"`
[INFO] [stdout] 8a546d36e0a65551a2af67497e8fcdd2e16e280d7d5acfd80b1a84ae0783d9e2