Sep 21 08:08:16.038 INFO checking kailua_check-1.1.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 08:08:16.038 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 08:08:16.038 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 08:08:16.269 INFO blam! bee08019ba49eff0a9f233b8ff605ec1725399f324e6272ebffd05c7af1ac0f0
Sep 21 08:08:16.270 INFO running `"docker" "start" "-a" "bee08019ba49eff0a9f233b8ff605ec1725399f324e6272ebffd05c7af1ac0f0"`
Sep 21 08:08:17.281 INFO kablam! usermod: no changes
Sep 21 08:08:17.512 INFO kablam!     Checking kailua_env v1.0.4
Sep 21 08:08:18.327 INFO kablam!     Checking kailua_diag v1.0.4
Sep 21 08:08:18.928 INFO kablam!     Checking kailua_syntax v1.1.0
Sep 21 08:08:18.928 INFO kablam!     Checking kailua_test v1.0.4
Sep 21 08:08:22.535 INFO kablam!     Checking kailua_types v1.1.0
Sep 21 08:08:26.586 INFO kablam!     Checking kailua_check v1.1.0 (/source)
Sep 21 08:08:28.190 INFO kablam! warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Sep 21 08:08:28.190 INFO kablam!  --> src/options.rs:4:5
Sep 21 08:08:28.190 INFO kablam!   |
Sep 21 08:08:28.190 INFO kablam! 4 | use std::ascii::AsciiExt;
Sep 21 08:08:28.190 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 21 08:08:28.190 INFO kablam!   |
Sep 21 08:08:28.190 INFO kablam!   = note: #[warn(deprecated)] on by default
Sep 21 08:08:28.190 INFO kablam! 
Sep 21 08:08:28.270 INFO kablam! warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Sep 21 08:08:28.270 INFO kablam!  --> src/options.rs:4:5
Sep 21 08:08:28.270 INFO kablam!   |
Sep 21 08:08:28.270 INFO kablam! 4 | use std::ascii::AsciiExt;
Sep 21 08:08:28.270 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 21 08:08:28.270 INFO kablam!   |
Sep 21 08:08:28.270 INFO kablam!   = note: #[warn(deprecated)] on by default
Sep 21 08:08:28.270 INFO kablam! 
Sep 21 08:08:29.765 INFO kablam! warning: unused import: `std::ascii::AsciiExt`
Sep 21 08:08:29.765 INFO kablam!  --> src/options.rs:4:5
Sep 21 08:08:29.765 INFO kablam!   |
Sep 21 08:08:29.766 INFO kablam! 4 | use std::ascii::AsciiExt;
Sep 21 08:08:29.766 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 21 08:08:29.767 INFO kablam!   |
Sep 21 08:08:29.767 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 08:08:29.767 INFO kablam! 
Sep 21 08:08:30.078 INFO kablam! warning: unused import: `std::ascii::AsciiExt`
Sep 21 08:08:30.078 INFO kablam!  --> src/options.rs:4:5
Sep 21 08:08:30.078 INFO kablam!   |
Sep 21 08:08:30.078 INFO kablam! 4 | use std::ascii::AsciiExt;
Sep 21 08:08:30.078 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 21 08:08:30.078 INFO kablam!   |
Sep 21 08:08:30.078 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 08:08:30.078 INFO kablam! 
Sep 21 08:08:30.314 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.314 INFO kablam!    --> src/env.rs:974:17
Sep 21 08:08:30.314 INFO kablam!     |
Sep 21 08:08:30.314 INFO kablam! 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Sep 21 08:08:30.314 INFO kablam!     |                 ----^^^
Sep 21 08:08:30.314 INFO kablam!     |                 |
Sep 21 08:08:30.314 INFO kablam!     |                 help: remove this `mut`
Sep 21 08:08:30.314 INFO kablam!     |
Sep 21 08:08:30.314 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 08:08:30.314 INFO kablam! 
Sep 21 08:08:30.330 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.330 INFO kablam!     --> src/env.rs:1194:13
Sep 21 08:08:30.330 INFO kablam!      |
Sep 21 08:08:30.330 INFO kablam! 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Sep 21 08:08:30.330 INFO kablam!      |             ----^^^
Sep 21 08:08:30.330 INFO kablam!      |             |
Sep 21 08:08:30.330 INFO kablam!      |             help: remove this `mut`
Sep 21 08:08:30.330 INFO kablam! 
Sep 21 08:08:30.406 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.406 INFO kablam!    --> src/env.rs:974:17
Sep 21 08:08:30.406 INFO kablam!     |
Sep 21 08:08:30.406 INFO kablam! 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Sep 21 08:08:30.406 INFO kablam!     |                 ----^^^
Sep 21 08:08:30.406 INFO kablam!     |                 |
Sep 21 08:08:30.406 INFO kablam!     |                 help: remove this `mut`
Sep 21 08:08:30.406 INFO kablam!     |
Sep 21 08:08:30.406 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 21 08:08:30.406 INFO kablam! 
Sep 21 08:08:30.426 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.426 INFO kablam!     --> src/env.rs:1194:13
Sep 21 08:08:30.426 INFO kablam!      |
Sep 21 08:08:30.426 INFO kablam! 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Sep 21 08:08:30.426 INFO kablam!      |             ----^^^
Sep 21 08:08:30.426 INFO kablam!      |             |
Sep 21 08:08:30.426 INFO kablam!      |             help: remove this `mut`
Sep 21 08:08:30.426 INFO kablam! 
Sep 21 08:08:30.592 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.592 INFO kablam!     --> src/check.rs:1302:13
Sep 21 08:08:30.592 INFO kablam!      |
Sep 21 08:08:30.592 INFO kablam! 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Sep 21 08:08:30.592 INFO kablam!      |             ----^^^^^^^
Sep 21 08:08:30.592 INFO kablam!      |             |
Sep 21 08:08:30.592 INFO kablam!      |             help: remove this `mut`
Sep 21 08:08:30.592 INFO kablam! 
Sep 21 08:08:30.750 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.750 INFO kablam!     --> src/check.rs:2882:17
Sep 21 08:08:30.750 INFO kablam!      |
Sep 21 08:08:30.750 INFO kablam! 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Sep 21 08:08:30.750 INFO kablam!      |                 ----^^^^^^^
Sep 21 08:08:30.750 INFO kablam!      |                 |
Sep 21 08:08:30.750 INFO kablam!      |                 help: remove this `mut`
Sep 21 08:08:30.750 INFO kablam! 
Sep 21 08:08:30.822 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:30.822 INFO kablam!     --> src/check.rs:1302:13
Sep 21 08:08:30.822 INFO kablam!      |
Sep 21 08:08:30.822 INFO kablam! 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Sep 21 08:08:30.822 INFO kablam!      |             ----^^^^^^^
Sep 21 08:08:30.822 INFO kablam!      |             |
Sep 21 08:08:30.822 INFO kablam!      |             help: remove this `mut`
Sep 21 08:08:30.822 INFO kablam! 
Sep 21 08:08:31.290 INFO kablam! warning: variable does not need to be mutable
Sep 21 08:08:31.290 INFO kablam!     --> src/check.rs:2882:17
Sep 21 08:08:31.290 INFO kablam!      |
Sep 21 08:08:31.290 INFO kablam! 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Sep 21 08:08:31.290 INFO kablam!      |                 ----^^^^^^^
Sep 21 08:08:31.290 INFO kablam!      |                 |
Sep 21 08:08:31.290 INFO kablam!      |                 help: remove this `mut`
Sep 21 08:08:31.290 INFO kablam! 
Sep 21 08:08:33.252 INFO kablam! warning: unused import: `std::str`
Sep 21 08:08:33.252 INFO kablam!  --> src/bin/kailua-check.rs:8:5
Sep 21 08:08:33.253 INFO kablam!   |
Sep 21 08:08:33.253 INFO kablam! 8 | use std::str;
Sep 21 08:08:33.253 INFO kablam!   |     ^^^^^^^^
Sep 21 08:08:33.254 INFO kablam!   |
Sep 21 08:08:33.254 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 08:08:33.254 INFO kablam! 
Sep 21 08:08:33.486 INFO kablam! warning: unused import: `std::str`
Sep 21 08:08:33.486 INFO kablam!  --> src/bin/kailua-check.rs:8:5
Sep 21 08:08:33.486 INFO kablam!   |
Sep 21 08:08:33.486 INFO kablam! 8 | use std::str;
Sep 21 08:08:33.486 INFO kablam!   |     ^^^^^^^^
Sep 21 08:08:33.486 INFO kablam!   |
Sep 21 08:08:33.486 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 08:08:33.486 INFO kablam! 
Sep 21 08:08:33.606 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 16.29s
Sep 21 08:08:33.622 INFO kablam! su: No module specific data is present
Sep 21 08:08:34.339 INFO running `"docker" "rm" "-f" "bee08019ba49eff0a9f233b8ff605ec1725399f324e6272ebffd05c7af1ac0f0"`
Sep 21 08:08:34.450 INFO blam! bee08019ba49eff0a9f233b8ff605ec1725399f324e6272ebffd05c7af1ac0f0