[INFO] cloning repository https://github.com/dingo-actual/silver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dingo-actual/silver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3efd4749a4ff6013b950864d0e3bce0f1212d351
[INFO] checking dingo-actual/silver against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingo-actual%2Fsilver" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dingo-actual/silver on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] crate git repo https://github.com/dingo-actual/silver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "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] 207f672e97f9ecd8529a0e7ea09e6fe35135ae4d703e36b1db9caadb4ec2efa7
[INFO] running `Command { std: "docker" "start" "-a" "207f672e97f9ecd8529a0e7ea09e6fe35135ae4d703e36b1db9caadb4ec2efa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "207f672e97f9ecd8529a0e7ea09e6fe35135ae4d703e36b1db9caadb4ec2efa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207f672e97f9ecd8529a0e7ea09e6fe35135ae4d703e36b1db9caadb4ec2efa7", kill_on_drop: false }`
[INFO] [stdout] 207f672e97f9ecd8529a0e7ea09e6fe35135ae4d703e36b1db9caadb4ec2efa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aea5fd4c9bf33c568858aa40e3802ae1d38be1bd254bdca43cd9328bd395031f
[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" "aea5fd4c9bf33c568858aa40e3802ae1d38be1bd254bdca43cd9328bd395031f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking silver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:209:34
[INFO] [stdout]     |
[INFO] [stdout] 209 |             nonzero_mask[*ix2] = (l.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:213:34
[INFO] [stdout]     |
[INFO] [stdout] 213 |             nonzero_mask[*ix2] = (h.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:217:34
[INFO] [stdout]     |
[INFO] [stdout] 217 |             nonzero_mask[*ix2] = (a2_old >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:235:30
[INFO] [stdout]     |
[INFO] [stdout] 235 |         nonzero_mask[*ix1] = (a1 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:236:30
[INFO] [stdout]     |
[INFO] [stdout] 236 |         nonzero_mask[*ix2] = (a2 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:209:34
[INFO] [stdout]     |
[INFO] [stdout] 209 |             nonzero_mask[*ix2] = (l.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:213:34
[INFO] [stdout]     |
[INFO] [stdout] 213 |             nonzero_mask[*ix2] = (h.abs() >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:217:34
[INFO] [stdout]     |
[INFO] [stdout] 217 |             nonzero_mask[*ix2] = (a2_old >= *eps);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:235:30
[INFO] [stdout]     |
[INFO] [stdout] 235 |         nonzero_mask[*ix1] = (a1 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/lib.rs:236:30
[INFO] [stdout]     |
[INFO] [stdout] 236 |         nonzero_mask[*ix2] = (a2 >= *eps);
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:117:175
[INFO] [stdout]     |
[INFO] [stdout] 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] [stdout]     |    ------------------- implicitly returns `()` as its body has no tail or `return` expression                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ expected tuple, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:  expected tuple `(bool, &'b ErrorCache<U>)`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:117:175
[INFO] [stdout]     |
[INFO] [stdout] 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] [stdout]     |    ------------------- implicitly returns `()` as its body has no tail or `return` expression                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ expected tuple, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:  expected tuple `(bool, &'b ErrorCache<U>)`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `silver`.
[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" "aea5fd4c9bf33c568858aa40e3802ae1d38be1bd254bdca43cd9328bd395031f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea5fd4c9bf33c568858aa40e3802ae1d38be1bd254bdca43cd9328bd395031f", kill_on_drop: false }`
[INFO] [stdout] aea5fd4c9bf33c568858aa40e3802ae1d38be1bd254bdca43cd9328bd395031f
