Dec 15 06:58:08.013 INFO testing kailua_check-1.1.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 06:58:08.013 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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 15 06:58:08.420 INFO [stdout] 7a497c3b93ce0bc6502de1abb6a111f3a5e5b4c2d95c4363fddd0bd462dd28f5
Dec 15 06:58:08.422 INFO running `"docker" "start" "-a" "7a497c3b93ce0bc6502de1abb6a111f3a5e5b4c2d95c4363fddd0bd462dd28f5"`
Dec 15 06:58:09.790 INFO [stderr] usermod: no changes
Dec 15 06:58:09.915 INFO [stderr]    Compiling parking_lot v0.4.8
Dec 15 06:58:09.915 INFO [stderr]    Compiling kailua_syntax v1.1.0
Dec 15 06:58:17.568 INFO [stderr]    Compiling kailua_types v1.1.0
Dec 15 06:58:27.735 INFO [stderr]    Compiling kailua_check v1.1.0 (/source)
Dec 15 06:58:30.063 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 15 06:58:30.063 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:30.063 INFO [stderr]   |
Dec 15 06:58:30.063 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:30.063 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:30.063 INFO [stderr]   |
Dec 15 06:58:30.063 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 15 06:58:30.063 INFO [stderr] 
Dec 15 06:58:31.539 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 15 06:58:31.539 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:31.539 INFO [stderr]   |
Dec 15 06:58:31.539 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:31.539 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:31.539 INFO [stderr]   |
Dec 15 06:58:31.539 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:31.539 INFO [stderr] 
Dec 15 06:58:31.847 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:31.847 INFO [stderr]    --> src/env.rs:974:17
Dec 15 06:58:31.847 INFO [stderr]     |
Dec 15 06:58:31.847 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 15 06:58:31.847 INFO [stderr]     |                 ----^^^
Dec 15 06:58:31.847 INFO [stderr]     |                 |
Dec 15 06:58:31.847 INFO [stderr]     |                 help: remove this `mut`
Dec 15 06:58:31.847 INFO [stderr]     |
Dec 15 06:58:31.847 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 06:58:31.847 INFO [stderr] 
Dec 15 06:58:31.867 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:31.867 INFO [stderr]     --> src/env.rs:1194:13
Dec 15 06:58:31.867 INFO [stderr]      |
Dec 15 06:58:31.867 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 15 06:58:31.867 INFO [stderr]      |             ----^^^
Dec 15 06:58:31.867 INFO [stderr]      |             |
Dec 15 06:58:31.867 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:31.867 INFO [stderr] 
Dec 15 06:58:32.141 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:32.141 INFO [stderr]     --> src/check.rs:1302:13
Dec 15 06:58:32.141 INFO [stderr]      |
Dec 15 06:58:32.141 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 15 06:58:32.141 INFO [stderr]      |             ----^^^^^^^
Dec 15 06:58:32.141 INFO [stderr]      |             |
Dec 15 06:58:32.141 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:32.141 INFO [stderr] 
Dec 15 06:58:32.292 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:32.293 INFO [stderr]     --> src/check.rs:2882:17
Dec 15 06:58:32.293 INFO [stderr]      |
Dec 15 06:58:32.293 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 15 06:58:32.293 INFO [stderr]      |                 ----^^^^^^^
Dec 15 06:58:32.293 INFO [stderr]      |                 |
Dec 15 06:58:32.293 INFO [stderr]      |                 help: remove this `mut`
Dec 15 06:58:32.293 INFO [stderr] 
Dec 15 06:58:36.299 INFO [stderr] warning: unused import: `std::str`
Dec 15 06:58:36.299 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 15 06:58:36.299 INFO [stderr]   |
Dec 15 06:58:36.299 INFO [stderr] 8 | use std::str;
Dec 15 06:58:36.299 INFO [stderr]   |     ^^^^^^^^
Dec 15 06:58:36.299 INFO [stderr]   |
Dec 15 06:58:36.299 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:36.299 INFO [stderr] 
Dec 15 06:58:41.305 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.49s
Dec 15 06:58:41.312 INFO [stderr] su: No module specific data is present
Dec 15 06:58:41.922 INFO running `"docker" "inspect" "7a497c3b93ce0bc6502de1abb6a111f3a5e5b4c2d95c4363fddd0bd462dd28f5"`
Dec 15 06:58:42.199 INFO running `"docker" "rm" "-f" "7a497c3b93ce0bc6502de1abb6a111f3a5e5b4c2d95c4363fddd0bd462dd28f5"`
Dec 15 06:58:42.458 INFO [stdout] 7a497c3b93ce0bc6502de1abb6a111f3a5e5b4c2d95c4363fddd0bd462dd28f5
Dec 15 06:58:42.467 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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 15 06:58:42.968 INFO [stdout] ef806dffb56ec6d67a2e468f5c49104d997bf6a426b3e52d104f71d22ccd8427
Dec 15 06:58:42.970 INFO running `"docker" "start" "-a" "ef806dffb56ec6d67a2e468f5c49104d997bf6a426b3e52d104f71d22ccd8427"`
Dec 15 06:58:44.161 INFO [stderr] usermod: no changes
Dec 15 06:58:44.299 INFO [stderr]    Compiling kailua_test v1.0.4
Dec 15 06:58:47.365 INFO [stderr]    Compiling kailua_check v1.1.0 (/source)
Dec 15 06:58:50.051 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 15 06:58:50.051 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:50.051 INFO [stderr]   |
Dec 15 06:58:50.051 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:50.051 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:50.051 INFO [stderr]   |
Dec 15 06:58:50.051 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 15 06:58:50.051 INFO [stderr] 
Dec 15 06:58:51.085 INFO [stderr] warning: unused import: `std::str`
Dec 15 06:58:51.085 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 15 06:58:51.085 INFO [stderr]   |
Dec 15 06:58:51.085 INFO [stderr] 8 | use std::str;
Dec 15 06:58:51.085 INFO [stderr]   |     ^^^^^^^^
Dec 15 06:58:51.085 INFO [stderr]   |
Dec 15 06:58:51.085 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:51.085 INFO [stderr] 
Dec 15 06:58:52.583 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 15 06:58:52.583 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:52.583 INFO [stderr]   |
Dec 15 06:58:52.583 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:52.583 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:52.583 INFO [stderr]   |
Dec 15 06:58:52.583 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:52.583 INFO [stderr] 
Dec 15 06:58:53.743 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:53.743 INFO [stderr]    --> src/env.rs:974:17
Dec 15 06:58:53.743 INFO [stderr]     |
Dec 15 06:58:53.743 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 15 06:58:53.743 INFO [stderr]     |                 ----^^^
Dec 15 06:58:53.743 INFO [stderr]     |                 |
Dec 15 06:58:53.743 INFO [stderr]     |                 help: remove this `mut`
Dec 15 06:58:53.743 INFO [stderr]     |
Dec 15 06:58:53.743 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 06:58:53.743 INFO [stderr] 
Dec 15 06:58:53.816 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:53.816 INFO [stderr]     --> src/env.rs:1194:13
Dec 15 06:58:53.816 INFO [stderr]      |
Dec 15 06:58:53.819 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 15 06:58:53.819 INFO [stderr]      |             ----^^^
Dec 15 06:58:53.819 INFO [stderr]      |             |
Dec 15 06:58:53.819 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:53.819 INFO [stderr] 
Dec 15 06:58:54.709 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:54.709 INFO [stderr]     --> src/check.rs:1302:13
Dec 15 06:58:54.709 INFO [stderr]      |
Dec 15 06:58:54.709 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 15 06:58:54.709 INFO [stderr]      |             ----^^^^^^^
Dec 15 06:58:54.709 INFO [stderr]      |             |
Dec 15 06:58:54.709 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:54.709 INFO [stderr] 
Dec 15 06:58:55.263 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:55.263 INFO [stderr]     --> src/check.rs:2882:17
Dec 15 06:58:55.263 INFO [stderr]      |
Dec 15 06:58:55.263 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 15 06:58:55.263 INFO [stderr]      |                 ----^^^^^^^
Dec 15 06:58:55.263 INFO [stderr]      |                 |
Dec 15 06:58:55.263 INFO [stderr]      |                 help: remove this `mut`
Dec 15 06:58:55.281 INFO [stderr] 
Dec 15 06:59:02.455 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.25s
Dec 15 06:59:02.459 INFO [stderr] su: No module specific data is present
Dec 15 06:59:03.072 INFO running `"docker" "inspect" "ef806dffb56ec6d67a2e468f5c49104d997bf6a426b3e52d104f71d22ccd8427"`
Dec 15 06:59:03.479 INFO running `"docker" "rm" "-f" "ef806dffb56ec6d67a2e468f5c49104d997bf6a426b3e52d104f71d22ccd8427"`
Dec 15 06:59:03.846 INFO [stdout] ef806dffb56ec6d67a2e468f5c49104d997bf6a426b3e52d104f71d22ccd8427