Dec 18 02:39:16.501 INFO checking cdouglass/samara against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252 Dec 18 02:39:16.501 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/cdouglass/samara:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"` Dec 18 02:39:16.724 INFO [stdout] 28382627536d26b5fd1f020decf315f130b9886f28739134d9c3d0b7cc04adf8 Dec 18 02:39:16.730 INFO running `"docker" "start" "-a" "28382627536d26b5fd1f020decf315f130b9886f28739134d9c3d0b7cc04adf8"` Dec 18 02:39:17.487 INFO [stderr] Compiling unicode-xid v0.0.4 Dec 18 02:39:17.489 INFO [stderr] Compiling quote v0.3.15 Dec 18 02:39:17.491 INFO [stderr] Compiling serde v1.0.15 Dec 18 02:39:17.493 INFO [stderr] Compiling getopts v0.2.15 Dec 18 02:39:17.495 INFO [stderr] Compiling bitflags v0.9.1 Dec 18 02:39:17.495 INFO [stderr] Compiling error-chain v0.11.0 Dec 18 02:39:17.495 INFO [stderr] Compiling glob v0.2.11 Dec 18 02:39:17.496 INFO [stderr] Checking bytecount v0.2.0 Dec 18 02:39:18.662 INFO [stderr] Compiling tempdir v0.3.5 Dec 18 02:39:18.815 INFO [stderr] Compiling synom v0.11.3 Dec 18 02:39:22.017 INFO [stderr] Compiling syn v0.11.11 Dec 18 02:39:22.114 INFO [stderr] Compiling pulldown-cmark v0.1.0 Dec 18 02:39:28.902 INFO [stderr] Compiling serde_derive_internals v0.16.0 Dec 18 02:39:30.970 INFO [stderr] Compiling serde_derive v1.0.15 Dec 18 02:39:34.638 INFO [stderr] Compiling toml v0.4.5 Dec 18 02:39:34.638 INFO [stderr] Compiling serde_json v1.0.3 Dec 18 02:39:35.971 INFO [stderr] Checking skeptic v0.13.0 Dec 18 02:39:40.967 INFO [stderr] Compiling samara v0.1.0 (/opt/crater/workdir) Dec 18 02:39:42.668 INFO [stderr] warning: unnecessary parentheses around method argument Dec 18 02:39:42.668 INFO [stderr] --> src/structures/patterns.rs:46:46 Dec 18 02:39:42.668 INFO [stderr] | Dec 18 02:39:42.668 INFO [stderr] 46 | patterns.iter().fold(vec![], (|mut v, pat| { Dec 18 02:39:42.668 INFO [stderr] | ______________________________________________^ Dec 18 02:39:42.668 INFO [stderr] 47 | | v.extend(pat.identifiers()); Dec 18 02:39:42.668 INFO [stderr] 48 | | v})) Dec 18 02:39:42.668 INFO [stderr] | |_______________________^ Dec 18 02:39:42.668 INFO [stderr] | Dec 18 02:39:42.668 INFO [stderr] = note: #[warn(unused_parens)] on by default Dec 18 02:39:42.668 INFO [stderr] help: remove these parentheses Dec 18 02:39:42.668 INFO [stderr] | Dec 18 02:39:42.668 INFO [stderr] 46 | patterns.iter().fold(vec![], |mut v, pat| { Dec 18 02:39:42.668 INFO [stderr] 47 | v.extend(pat.identifiers()); Dec 18 02:39:42.668 INFO [stderr] 48 | v}) Dec 18 02:39:42.668 INFO [stderr] | Dec 18 02:39:42.668 INFO [stderr] Dec 18 02:39:42.896 INFO [stderr] warning: unnecessary parentheses around method argument Dec 18 02:39:42.896 INFO [stderr] --> src/structures/patterns.rs:46:46 Dec 18 02:39:42.896 INFO [stderr] | Dec 18 02:39:42.896 INFO [stderr] 46 | patterns.iter().fold(vec![], (|mut v, pat| { Dec 18 02:39:42.896 INFO [stderr] | ______________________________________________^ Dec 18 02:39:42.896 INFO [stderr] 47 | | v.extend(pat.identifiers()); Dec 18 02:39:42.896 INFO [stderr] 48 | | v})) Dec 18 02:39:42.896 INFO [stderr] | |_______________________^ Dec 18 02:39:42.896 INFO [stderr] | Dec 18 02:39:42.896 INFO [stderr] = note: #[warn(unused_parens)] on by default Dec 18 02:39:42.896 INFO [stderr] help: remove these parentheses Dec 18 02:39:42.896 INFO [stderr] | Dec 18 02:39:42.896 INFO [stderr] 46 | patterns.iter().fold(vec![], |mut v, pat| { Dec 18 02:39:42.896 INFO [stderr] 47 | v.extend(pat.identifiers()); Dec 18 02:39:42.896 INFO [stderr] 48 | v}) Dec 18 02:39:42.896 INFO [stderr] | Dec 18 02:39:42.896 INFO [stderr] Dec 18 02:39:42.896 INFO [stderr] warning: unnecessary parentheses around function argument Dec 18 02:39:42.896 INFO [stderr] --> src/parse/decl.rs:199:67 Dec 18 02:39:42.897 INFO [stderr] | Dec 18 02:39:42.897 INFO [stderr] 199 | assert_parses_type("Int -> Bool -> Int", arrow(Type::Int, (arrow(Type::Bool, Type::Int)))); Dec 18 02:39:42.897 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses Dec 18 02:39:42.897 INFO [stderr] Dec 18 02:39:44.450 INFO [stderr] warning: variable does not need to be mutable Dec 18 02:39:44.451 INFO [stderr] --> src/tests.rs:14:38 Dec 18 02:39:44.451 INFO [stderr] | Dec 18 02:39:44.452 INFO [stderr] 14 | fn assert_evaluation_err(expr: &str, mut bindings: &mut Vec, mut gen: &mut GenTypeVar, msg: &str) { Dec 18 02:39:44.452 INFO [stderr] | ----^^^^^^^^ Dec 18 02:39:44.452 INFO [stderr] | | Dec 18 02:39:44.452 INFO [stderr] | help: remove this `mut` Dec 18 02:39:44.452 INFO [stderr] | Dec 18 02:39:44.453 INFO [stderr] = note: #[warn(unused_mut)] on by default Dec 18 02:39:44.453 INFO [stderr] Dec 18 02:39:44.453 INFO [stderr] warning: variable does not need to be mutable Dec 18 02:39:44.453 INFO [stderr] --> src/tests.rs:14:74 Dec 18 02:39:44.454 INFO [stderr] | Dec 18 02:39:44.454 INFO [stderr] 14 | fn assert_evaluation_err(expr: &str, mut bindings: &mut Vec, mut gen: &mut GenTypeVar, msg: &str) { Dec 18 02:39:44.454 INFO [stderr] | ----^^^ Dec 18 02:39:44.454 INFO [stderr] | | Dec 18 02:39:44.455 INFO [stderr] | help: remove this `mut` Dec 18 02:39:44.455 INFO [stderr] Dec 18 02:39:44.456 INFO [stderr] warning: variable does not need to be mutable Dec 18 02:39:44.457 INFO [stderr] --> src/tests.rs:24:90 Dec 18 02:39:44.457 INFO [stderr] | Dec 18 02:39:44.457 INFO [stderr] 24 | fn assert_evaluates_to_atom_with_context(expr: &str, mut bindings: &mut Vec, mut gen: &mut GenTypeVar, sum_types: &SumTypeDefs, expected: Atom) { Dec 18 02:39:44.457 INFO [stderr] | ----^^^ Dec 18 02:39:44.458 INFO [stderr] | | Dec 18 02:39:44.458 INFO [stderr] | help: remove this `mut` Dec 18 02:39:44.458 INFO [stderr] Dec 18 02:39:44.458 INFO [stderr] warning: variable does not need to be mutable Dec 18 02:39:44.459 INFO [stderr] --> src/tests.rs:34:41 Dec 18 02:39:44.459 INFO [stderr] | Dec 18 02:39:44.459 INFO [stderr] 34 | fn assert_evaluates_to_atom(expr: &str, mut bindings: &mut Vec, mut gen: &mut GenTypeVar, expected: Atom) { Dec 18 02:39:44.459 INFO [stderr] | ----^^^^^^^^ Dec 18 02:39:44.459 INFO [stderr] | | Dec 18 02:39:44.460 INFO [stderr] | help: remove this `mut` Dec 18 02:39:44.460 INFO [stderr] Dec 18 02:39:44.460 INFO [stderr] warning: variable does not need to be mutable Dec 18 02:39:44.460 INFO [stderr] --> src/tests.rs:34:77 Dec 18 02:39:44.461 INFO [stderr] | Dec 18 02:39:44.461 INFO [stderr] 34 | fn assert_evaluates_to_atom(expr: &str, mut bindings: &mut Vec, mut gen: &mut GenTypeVar, expected: Atom) { Dec 18 02:39:44.461 INFO [stderr] | ----^^^ Dec 18 02:39:44.461 INFO [stderr] | | Dec 18 02:39:44.462 INFO [stderr] | help: remove this `mut` Dec 18 02:39:44.462 INFO [stderr] Dec 18 02:39:44.574 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.20s Dec 18 02:39:45.833 INFO running `"docker" "inspect" "28382627536d26b5fd1f020decf315f130b9886f28739134d9c3d0b7cc04adf8"` Dec 18 02:39:46.138 INFO running `"docker" "rm" "-f" "28382627536d26b5fd1f020decf315f130b9886f28739134d9c3d0b7cc04adf8"` Dec 18 02:39:46.428 INFO [stdout] 28382627536d26b5fd1f020decf315f130b9886f28739134d9c3d0b7cc04adf8