Dec 12 12:27:47.459 INFO checking kailua_check-1.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 12:27:47.459 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 12:27:47.825 INFO [stdout] fa8bf6efbcc88b6b8f1366895164ca0c0b4b2b94fcd87998fa2f12212517ae17
Dec 12 12:27:47.832 INFO running `"docker" "start" "-a" "fa8bf6efbcc88b6b8f1366895164ca0c0b4b2b94fcd87998fa2f12212517ae17"`
Dec 12 12:27:48.593 INFO [stderr] usermod: no changes
Dec 12 12:27:48.756 INFO [stderr]     Checking parse-generics-shim v0.1.1
Dec 12 12:27:48.756 INFO [stderr]     Checking kailua_env v1.0.4
Dec 12 12:27:49.728 INFO [stderr]     Checking kailua_diag v1.0.4
Dec 12 12:27:50.788 INFO [stderr]     Checking kailua_syntax v1.1.0
Dec 12 12:27:50.788 INFO [stderr]     Checking kailua_test v1.0.4
Dec 12 12:27:54.695 INFO [stderr]     Checking kailua_types v1.1.0
Dec 12 12:27:59.211 INFO [stderr]     Checking kailua_check v1.1.0 (/source)
Dec 12 12:28:02.622 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 12:28:02.622 INFO [stderr]  --> src/options.rs:4:5
Dec 12 12:28:02.622 INFO [stderr]   |
Dec 12 12:28:02.623 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 12:28:02.623 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 12:28:02.623 INFO [stderr]   |
Dec 12 12:28:02.623 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 12 12:28:02.623 INFO [stderr] 
Dec 12 12:28:03.088 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 12:28:03.088 INFO [stderr]  --> src/options.rs:4:5
Dec 12 12:28:03.089 INFO [stderr]   |
Dec 12 12:28:03.089 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 12:28:03.089 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 12:28:03.089 INFO [stderr]   |
Dec 12 12:28:03.089 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 12 12:28:03.090 INFO [stderr] 
Dec 12 12:28:04.912 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 12 12:28:04.912 INFO [stderr]  --> src/options.rs:4:5
Dec 12 12:28:04.912 INFO [stderr]   |
Dec 12 12:28:04.913 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 12:28:04.913 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 12:28:04.913 INFO [stderr]   |
Dec 12 12:28:04.913 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 12:28:04.913 INFO [stderr] 
Dec 12 12:28:05.460 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 12 12:28:05.460 INFO [stderr]  --> src/options.rs:4:5
Dec 12 12:28:05.460 INFO [stderr]   |
Dec 12 12:28:05.460 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 12:28:05.460 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 12:28:05.460 INFO [stderr]   |
Dec 12 12:28:05.460 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 12:28:05.460 INFO [stderr] 
Dec 12 12:28:05.492 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:05.492 INFO [stderr]    --> src/env.rs:974:17
Dec 12 12:28:05.492 INFO [stderr]     |
Dec 12 12:28:05.492 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 12 12:28:05.492 INFO [stderr]     |                 ----^^^
Dec 12 12:28:05.492 INFO [stderr]     |                 |
Dec 12 12:28:05.492 INFO [stderr]     |                 help: remove this `mut`
Dec 12 12:28:05.492 INFO [stderr]     |
Dec 12 12:28:05.492 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 12:28:05.492 INFO [stderr] 
Dec 12 12:28:05.512 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:05.512 INFO [stderr]     --> src/env.rs:1194:13
Dec 12 12:28:05.512 INFO [stderr]      |
Dec 12 12:28:05.512 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 12 12:28:05.512 INFO [stderr]      |             ----^^^
Dec 12 12:28:05.512 INFO [stderr]      |             |
Dec 12 12:28:05.512 INFO [stderr]      |             help: remove this `mut`
Dec 12 12:28:05.512 INFO [stderr] 
Dec 12 12:28:05.896 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:05.896 INFO [stderr]    --> src/env.rs:974:17
Dec 12 12:28:05.896 INFO [stderr]     |
Dec 12 12:28:05.896 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 12 12:28:05.896 INFO [stderr]     |                 ----^^^
Dec 12 12:28:05.896 INFO [stderr]     |                 |
Dec 12 12:28:05.896 INFO [stderr]     |                 help: remove this `mut`
Dec 12 12:28:05.896 INFO [stderr]     |
Dec 12 12:28:05.896 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 12:28:05.896 INFO [stderr] 
Dec 12 12:28:05.912 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:05.912 INFO [stderr]     --> src/env.rs:1194:13
Dec 12 12:28:05.912 INFO [stderr]      |
Dec 12 12:28:05.912 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 12 12:28:05.912 INFO [stderr]      |             ----^^^
Dec 12 12:28:05.912 INFO [stderr]      |             |
Dec 12 12:28:05.912 INFO [stderr]      |             help: remove this `mut`
Dec 12 12:28:05.912 INFO [stderr] 
Dec 12 12:28:05.947 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:05.947 INFO [stderr]     --> src/check.rs:1302:13
Dec 12 12:28:05.947 INFO [stderr]      |
Dec 12 12:28:05.947 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 12 12:28:05.947 INFO [stderr]      |             ----^^^^^^^
Dec 12 12:28:05.947 INFO [stderr]      |             |
Dec 12 12:28:05.947 INFO [stderr]      |             help: remove this `mut`
Dec 12 12:28:05.947 INFO [stderr] 
Dec 12 12:28:06.196 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:06.196 INFO [stderr]     --> src/check.rs:2882:17
Dec 12 12:28:06.196 INFO [stderr]      |
Dec 12 12:28:06.196 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 12 12:28:06.196 INFO [stderr]      |                 ----^^^^^^^
Dec 12 12:28:06.196 INFO [stderr]      |                 |
Dec 12 12:28:06.196 INFO [stderr]      |                 help: remove this `mut`
Dec 12 12:28:06.196 INFO [stderr] 
Dec 12 12:28:06.368 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:06.368 INFO [stderr]     --> src/check.rs:1302:13
Dec 12 12:28:06.368 INFO [stderr]      |
Dec 12 12:28:06.368 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 12 12:28:06.368 INFO [stderr]      |             ----^^^^^^^
Dec 12 12:28:06.368 INFO [stderr]      |             |
Dec 12 12:28:06.368 INFO [stderr]      |             help: remove this `mut`
Dec 12 12:28:06.368 INFO [stderr] 
Dec 12 12:28:06.584 INFO [stderr] warning: variable does not need to be mutable
Dec 12 12:28:06.584 INFO [stderr]     --> src/check.rs:2882:17
Dec 12 12:28:06.584 INFO [stderr]      |
Dec 12 12:28:06.584 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 12 12:28:06.584 INFO [stderr]      |                 ----^^^^^^^
Dec 12 12:28:06.584 INFO [stderr]      |                 |
Dec 12 12:28:06.584 INFO [stderr]      |                 help: remove this `mut`
Dec 12 12:28:06.585 INFO [stderr] 
Dec 12 12:28:11.488 INFO [stderr] warning: unused import: `std::str`
Dec 12 12:28:11.488 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 12 12:28:11.488 INFO [stderr]   |
Dec 12 12:28:11.488 INFO [stderr] 8 | use std::str;
Dec 12 12:28:11.488 INFO [stderr]   |     ^^^^^^^^
Dec 12 12:28:11.488 INFO [stderr]   |
Dec 12 12:28:11.488 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 12:28:11.488 INFO [stderr] 
Dec 12 12:28:12.740 INFO [stderr] warning: unused import: `std::str`
Dec 12 12:28:12.740 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 12 12:28:12.740 INFO [stderr]   |
Dec 12 12:28:12.740 INFO [stderr] 8 | use std::str;
Dec 12 12:28:12.740 INFO [stderr]   |     ^^^^^^^^
Dec 12 12:28:12.740 INFO [stderr]   |
Dec 12 12:28:12.740 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 12:28:12.740 INFO [stderr] 
Dec 12 12:28:12.977 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.37s
Dec 12 12:28:12.992 INFO [stderr] su: No module specific data is present
Dec 12 12:28:13.700 INFO running `"docker" "inspect" "fa8bf6efbcc88b6b8f1366895164ca0c0b4b2b94fcd87998fa2f12212517ae17"`
Dec 12 12:28:14.072 INFO running `"docker" "rm" "-f" "fa8bf6efbcc88b6b8f1366895164ca0c0b4b2b94fcd87998fa2f12212517ae17"`
Dec 12 12:28:14.388 INFO [stdout] fa8bf6efbcc88b6b8f1366895164ca0c0b4b2b94fcd87998fa2f12212517ae17