[INFO] cloning repository https://github.com/unfo/this-one-time-at-bandcamp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unfo/this-one-time-at-bandcamp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funfo%2Fthis-one-time-at-bandcamp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funfo%2Fthis-one-time-at-bandcamp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae3bca9e53966b5e6e7aaf4411265c86b16d17d0
[INFO] checking unfo/this-one-time-at-bandcamp against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funfo%2Fthis-one-time-at-bandcamp" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unfo/this-one-time-at-bandcamp on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/unfo/this-one-time-at-bandcamp
[INFO] finished tweaking git repo https://github.com/unfo/this-one-time-at-bandcamp
[INFO] tweaked toml for git repo https://github.com/unfo/this-one-time-at-bandcamp written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/unfo/this-one-time-at-bandcamp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded untrusted v0.3.2
[INFO] [stderr]   Downloaded ring v0.6.2
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2e7d2b9db438d2267da0d6c12083484ed59c83ca6a3871a5c86ab06ba4ad6c9
[INFO] running `Command { std: "docker" "start" "-a" "a2e7d2b9db438d2267da0d6c12083484ed59c83ca6a3871a5c86ab06ba4ad6c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2e7d2b9db438d2267da0d6c12083484ed59c83ca6a3871a5c86ab06ba4ad6c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e7d2b9db438d2267da0d6c12083484ed59c83ca6a3871a5c86ab06ba4ad6c9", kill_on_drop: false }`
[INFO] [stdout] a2e7d2b9db438d2267da0d6c12083484ed59c83ca6a3871a5c86ab06ba4ad6c9
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acfbc793bd4dfffdd05ea5d81a92230430c3367897d9fb1ebbb53697689a2be2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "acfbc793bd4dfffdd05ea5d81a92230430c3367897d9fb1ebbb53697689a2be2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring v0.6.2
[INFO] [stderr]     Checking untrusted v0.3.2
[INFO] [stderr]     Checking lazy_static v0.2.2
[INFO] [stderr]     Checking base32 v0.3.1
[INFO] [stdout] error[E0277]: `&&Vec<String>` is not an iterator
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.6.2/build.rs:227:15
[INFO] [stdout]     |
[INFO] [stdout] 227 |         .args(&args)
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               `&&Vec<String>` is not an iterator
[INFO] [stdout]     |               help: consider adding dereference here: `&*args`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Iterator` is not implemented for `&&Vec<String>`
[INFO] [stdout]     = note: required because of the requirements on the impl of `IntoIterator` for `&&Vec<String>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ring`
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "acfbc793bd4dfffdd05ea5d81a92230430c3367897d9fb1ebbb53697689a2be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acfbc793bd4dfffdd05ea5d81a92230430c3367897d9fb1ebbb53697689a2be2", kill_on_drop: false }`
[INFO] [stdout] acfbc793bd4dfffdd05ea5d81a92230430c3367897d9fb1ebbb53697689a2be2