[INFO] cloning repository https://github.com/leshow/rust-filter-map-reduce-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leshow/rust-filter-map-reduce-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Frust-filter-map-reduce-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Frust-filter-map-reduce-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be964def3658f3365e1f356643269ac6bb5f3734
[INFO] testing leshow/rust-filter-map-reduce-bench against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Frust-filter-map-reduce-bench" "/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/leshow/rust-filter-map-reduce-bench on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leshow/rust-filter-map-reduce-bench
[INFO] finished tweaking git repo https://github.com/leshow/rust-filter-map-reduce-bench
[INFO] tweaked toml for git repo https://github.com/leshow/rust-filter-map-reduce-bench written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/leshow/rust-filter-map-reduce-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] c7223abd916d4f9d8931636d1843325381243589feee126cdd6bee993713433a
[INFO] running `Command { std: "docker" "start" "-a" "c7223abd916d4f9d8931636d1843325381243589feee126cdd6bee993713433a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7223abd916d4f9d8931636d1843325381243589feee126cdd6bee993713433a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7223abd916d4f9d8931636d1843325381243589feee126cdd6bee993713433a", kill_on_drop: false }`
[INFO] [stdout] c7223abd916d4f9d8931636d1843325381243589feee126cdd6bee993713433a
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", 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] e531112505e31594b6c635a26ee9388e417da2531db721fcf3131b5f3370ab30
[INFO] running `Command { std: "docker" "start" "-a" "e531112505e31594b6c635a26ee9388e417da2531db721fcf3131b5f3370ab30", kill_on_drop: false }`
[INFO] [stderr]    Compiling fold-test v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for x in (0..iterations) {
[INFO] [stdout]    |              ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     for x in (0..iterations) {
[INFO] [stdout] 23 +     for x in 0..iterations {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `fold_test`
[INFO] [stdout]   --> src/main.rs:48:2
[INFO] [stdout]    |
[INFO] [stdout] 48 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fold-test` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e531112505e31594b6c635a26ee9388e417da2531db721fcf3131b5f3370ab30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e531112505e31594b6c635a26ee9388e417da2531db721fcf3131b5f3370ab30", kill_on_drop: false }`
[INFO] [stdout] e531112505e31594b6c635a26ee9388e417da2531db721fcf3131b5f3370ab30