Oct 27 06:59:50.368 INFO checking cdouglass/samara against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 06:59:50.368 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-6/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +19f01b935b91481fd445b16b533d2f87661bf12e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 27 06:59:50.803 INFO blam! 18db2175a094d24181bf559f4748719df3e52b925b1aa489eca286ce78460770
Oct 27 06:59:50.811 INFO running `"docker" "start" "-a" "18db2175a094d24181bf559f4748719df3e52b925b1aa489eca286ce78460770"`
Oct 27 06:59:51.780 INFO kablam! usermod: no changes
Oct 27 06:59:51.964 INFO kablam!    Compiling pulldown-cmark v0.1.0
Oct 27 06:59:51.965 INFO kablam!    Compiling serde v1.0.15
Oct 27 06:59:51.971 INFO kablam!    Compiling error-chain v0.11.0
Oct 27 06:59:51.984 INFO kablam!     Checking bytecount v0.2.0
Oct 27 06:59:51.984 INFO kablam!     Checking toml v0.4.5
Oct 27 06:59:51.984 INFO kablam!    Compiling tempdir v0.3.5
Oct 27 06:59:58.628 INFO kablam!     Checking skeptic v0.13.0
Oct 27 07:00:09.805 INFO kablam!    Compiling serde_json v1.0.3
Oct 27 07:00:17.623 INFO kablam!    Compiling samara v0.1.0 (/source)
Oct 27 07:00:21.156 INFO kablam! warning: unnecessary parentheses around method argument
Oct 27 07:00:21.157 INFO kablam!   --> src/structures/patterns.rs:46:46
Oct 27 07:00:21.157 INFO kablam!    |
Oct 27 07:00:21.157 INFO kablam! 46 |                   patterns.iter().fold(vec![], (|mut v, pat| {
Oct 27 07:00:21.157 INFO kablam!    |  ______________________________________________^
Oct 27 07:00:21.158 INFO kablam! 47 | |                     v.extend(pat.identifiers());
Oct 27 07:00:21.158 INFO kablam! 48 | |                     v}))
Oct 27 07:00:21.158 INFO kablam!    | |_______________________^ help: remove these parentheses
Oct 27 07:00:21.158 INFO kablam!    |
Oct 27 07:00:21.158 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 07:00:21.158 INFO kablam! 
Oct 27 07:00:21.171 INFO kablam! warning: unnecessary parentheses around function argument
Oct 27 07:00:21.171 INFO kablam!    --> src/parse/decl.rs:199:67
Oct 27 07:00:21.171 INFO kablam!     |
Oct 27 07:00:21.171 INFO kablam! 199 |         assert_parses_type("Int -> Bool -> Int", arrow(Type::Int, (arrow(Type::Bool, Type::Int))));
Oct 27 07:00:21.171 INFO kablam!     |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Oct 27 07:00:21.171 INFO kablam! 
Oct 27 07:00:21.275 INFO kablam! warning: unnecessary parentheses around method argument
Oct 27 07:00:21.275 INFO kablam!   --> src/structures/patterns.rs:46:46
Oct 27 07:00:21.275 INFO kablam!    |
Oct 27 07:00:21.275 INFO kablam! 46 |                   patterns.iter().fold(vec![], (|mut v, pat| {
Oct 27 07:00:21.275 INFO kablam!    |  ______________________________________________^
Oct 27 07:00:21.275 INFO kablam! 47 | |                     v.extend(pat.identifiers());
Oct 27 07:00:21.275 INFO kablam! 48 | |                     v}))
Oct 27 07:00:21.275 INFO kablam!    | |_______________________^ help: remove these parentheses
Oct 27 07:00:21.275 INFO kablam!    |
Oct 27 07:00:21.275 INFO kablam!    = note: #[warn(unused_parens)] on by default
Oct 27 07:00:21.275 INFO kablam! 
Oct 27 07:00:24.019 INFO kablam! warning: variable does not need to be mutable
Oct 27 07:00:24.019 INFO kablam!   --> src/tests.rs:14:38
Oct 27 07:00:24.019 INFO kablam!    |
Oct 27 07:00:24.019 INFO kablam! 14 | fn assert_evaluation_err(expr: &str, mut bindings: &mut Vec<LetBinding>, mut gen: &mut GenTypeVar, msg: &str) {
Oct 27 07:00:24.019 INFO kablam!    |                                      ----^^^^^^^^
Oct 27 07:00:24.019 INFO kablam!    |                                      |
Oct 27 07:00:24.019 INFO kablam!    |                                      help: remove this `mut`
Oct 27 07:00:24.019 INFO kablam!    |
Oct 27 07:00:24.019 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 07:00:24.019 INFO kablam! 
Oct 27 07:00:24.019 INFO kablam! warning: variable does not need to be mutable
Oct 27 07:00:24.019 INFO kablam!   --> src/tests.rs:14:74
Oct 27 07:00:24.019 INFO kablam!    |
Oct 27 07:00:24.019 INFO kablam! 14 | fn assert_evaluation_err(expr: &str, mut bindings: &mut Vec<LetBinding>, mut gen: &mut GenTypeVar, msg: &str) {
Oct 27 07:00:24.019 INFO kablam!    |                                                                          ----^^^
Oct 27 07:00:24.022 INFO kablam!    |                                                                          |
Oct 27 07:00:24.022 INFO kablam!    |                                                                          help: remove this `mut`
Oct 27 07:00:24.022 INFO kablam! 
Oct 27 07:00:24.031 INFO kablam! warning: variable does not need to be mutable
Oct 27 07:00:24.031 INFO kablam!   --> src/tests.rs:24:90
Oct 27 07:00:24.031 INFO kablam!    |
Oct 27 07:00:24.031 INFO kablam! 24 | fn assert_evaluates_to_atom_with_context(expr: &str, mut bindings: &mut Vec<LetBinding>, mut gen: &mut GenTypeVar, sum_types: &SumTypeDefs, expected: Atom) {
Oct 27 07:00:24.031 INFO kablam!    |                                                                                          ----^^^
Oct 27 07:00:24.031 INFO kablam!    |                                                                                          |
Oct 27 07:00:24.031 INFO kablam!    |                                                                                          help: remove this `mut`
Oct 27 07:00:24.031 INFO kablam! 
Oct 27 07:00:24.031 INFO kablam! warning: variable does not need to be mutable
Oct 27 07:00:24.031 INFO kablam!   --> src/tests.rs:34:41
Oct 27 07:00:24.031 INFO kablam!    |
Oct 27 07:00:24.031 INFO kablam! 34 | fn assert_evaluates_to_atom(expr: &str, mut bindings: &mut Vec<LetBinding>, mut gen: &mut GenTypeVar, expected: Atom) {
Oct 27 07:00:24.031 INFO kablam!    |                                         ----^^^^^^^^
Oct 27 07:00:24.031 INFO kablam!    |                                         |
Oct 27 07:00:24.031 INFO kablam!    |                                         help: remove this `mut`
Oct 27 07:00:24.031 INFO kablam! 
Oct 27 07:00:24.031 INFO kablam! warning: variable does not need to be mutable
Oct 27 07:00:24.031 INFO kablam!   --> src/tests.rs:34:77
Oct 27 07:00:24.031 INFO kablam!    |
Oct 27 07:00:24.031 INFO kablam! 34 | fn assert_evaluates_to_atom(expr: &str, mut bindings: &mut Vec<LetBinding>, mut gen: &mut GenTypeVar, expected: Atom) {
Oct 27 07:00:24.031 INFO kablam!    |                                                                             ----^^^
Oct 27 07:00:24.031 INFO kablam!    |                                                                             |
Oct 27 07:00:24.031 INFO kablam!    |                                                                             help: remove this `mut`
Oct 27 07:00:24.031 INFO kablam! 
Oct 27 07:00:24.711 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 32.88s
Oct 27 07:00:24.715 INFO kablam! su: No module specific data is present
Oct 27 07:00:26.054 INFO running `"docker" "rm" "-f" "18db2175a094d24181bf559f4748719df3e52b925b1aa489eca286ce78460770"`
Oct 27 07:00:26.339 INFO blam! 18db2175a094d24181bf559f4748719df3e52b925b1aa489eca286ce78460770