[INFO] updating cached repository https://github.com/dingo-actual/silver
[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] 3efd4749a4ff6013b950864d0e3bce0f1212d351
[INFO] testing dingo-actual/silver against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dingo-actual/silver on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dingo-actual/silver
[INFO] finished tweaking git repo https://github.com/dingo-actual/silver
[INFO] tweaked toml for git repo https://github.com/dingo-actual/silver written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/dingo-actual/silver already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 580cc1d5b6163f2768fc615ce49e220159caa453ac9f3ee733be367dfb502024
[INFO] running `"docker" "start" "-a" "580cc1d5b6163f2768fc615ce49e220159caa453ac9f3ee733be367dfb502024"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling silver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:209:34
[INFO] [stderr]     |
[INFO] [stderr] 209 |             nonzero_mask[*ix2] = (l.abs() >= *eps);
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:213:34
[INFO] [stderr]     |
[INFO] [stderr] 213 |             nonzero_mask[*ix2] = (h.abs() >= *eps);
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:217:34
[INFO] [stderr]     |
[INFO] [stderr] 217 |             nonzero_mask[*ix2] = (a2_old >= *eps);
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:235:30
[INFO] [stderr]     |
[INFO] [stderr] 235 |         nonzero_mask[*ix1] = (a1 >= *eps);
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/lib.rs:236:30
[INFO] [stderr]     |
[INFO] [stderr] 236 |         nonzero_mask[*ix2] = (a2 >= *eps);
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:117:175
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn smo_examine_example<'a, 'b, T, U: Float>(svm: &mut SVM<'a, T, U>, c: &U, tol: &U, eps: &U, ix2: &usize, err_cache: &'b mut ErrorCache<U>, nonzero_mask: &mut Vec<bool>) -> (bool, &'b ErrorCache<U>) {
[INFO] [stderr]     |    ------------------- implicitly returns `()` as its body has no tail or `return` expression                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ expected tuple, found `()`
[INFO] [stderr]     |
[INFO] [stderr]     = note:  expected tuple `(bool, &'b ErrorCache<U>)`
[INFO] [stderr]             found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `silver`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "580cc1d5b6163f2768fc615ce49e220159caa453ac9f3ee733be367dfb502024"`
[INFO] running `"docker" "rm" "-f" "580cc1d5b6163f2768fc615ce49e220159caa453ac9f3ee733be367dfb502024"`
[INFO] [stdout] 580cc1d5b6163f2768fc615ce49e220159caa453ac9f3ee733be367dfb502024