[INFO] updating cached repository https://github.com/sbeckeriv/mandelbrot-rs
[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] 89e4149993c4e56f22e350fad050d8dc54cc3699
[INFO] checking sbeckeriv/mandelbrot-rs against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Fmandelbrot-rs" "/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/sbeckeriv/mandelbrot-rs on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sbeckeriv/mandelbrot-rs
[INFO] finished tweaking git repo https://github.com/sbeckeriv/mandelbrot-rs
[INFO] tweaked toml for git repo https://github.com/sbeckeriv/mandelbrot-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sbeckeriv/mandelbrot-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 171b32ba4dd8f02b5638bb873fcba9bd03ef245f6d06790393d7859fcf53eca8
[INFO] running `"docker" "start" "-a" "171b32ba4dd8f02b5638bb873fcba9bd03ef245f6d06790393d7859fcf53eca8"`
[INFO] [stderr]     Checking mandelbrot-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:30:18
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let output = try!(File::create(filename));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     try!(encoder.encode(&pixels[..],
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]    --> src/main.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 scope.spawn(move || {
[INFO] [stderr]     |                       ^^^^^ ------- takes 0 arguments
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       expected closure that takes 1 argument
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 scope.spawn(move |_| {
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0593`.
[INFO] [stderr] error: could not compile `mandelbrot-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:30:18
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let output = try!(File::create(filename));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     try!(encoder.encode(&pixels[..],
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
[INFO] [stderr]    --> src/main.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 scope.spawn(move || {
[INFO] [stderr]     |                       ^^^^^ ------- takes 0 arguments
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       expected closure that takes 1 argument
[INFO] [stderr] help: consider changing the closure to take and ignore the expected argument
[INFO] [stderr]     |
[INFO] [stderr] 102 |                 scope.spawn(move |_| {
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0593`.
[INFO] [stderr] error: could not compile `mandelbrot-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "171b32ba4dd8f02b5638bb873fcba9bd03ef245f6d06790393d7859fcf53eca8"`
[INFO] running `"docker" "rm" "-f" "171b32ba4dd8f02b5638bb873fcba9bd03ef245f6d06790393d7859fcf53eca8"`
[INFO] [stdout] 171b32ba4dd8f02b5638bb873fcba9bd03ef245f6d06790393d7859fcf53eca8