Dec 15 06:58:10.666 INFO testing kailua_check-1.1.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 06:58:10.666 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 06:58:11.059 INFO [stdout] 157dbc6859a51df973278a1f72a8803c7583c14a830e69fa572a94a442c67d23
Dec 15 06:58:11.063 INFO running `"docker" "start" "-a" "157dbc6859a51df973278a1f72a8803c7583c14a830e69fa572a94a442c67d23"`
Dec 15 06:58:12.492 INFO [stderr] usermod: no changes
Dec 15 06:58:12.663 INFO [stderr]    Compiling kailua_env v1.0.4
Dec 15 06:58:12.664 INFO [stderr]    Compiling parking_lot v0.4.8
Dec 15 06:58:14.275 INFO [stderr]    Compiling kailua_diag v1.0.4
Dec 15 06:58:15.804 INFO [stderr]    Compiling kailua_syntax v1.1.0
Dec 15 06:58:23.490 INFO [stderr]    Compiling kailua_types v1.1.0
Dec 15 06:58:34.245 INFO [stderr]    Compiling kailua_check v1.1.0 (/source)
Dec 15 06:58:36.005 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 15 06:58:36.005 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:36.006 INFO [stderr]   |
Dec 15 06:58:36.006 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:36.006 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:36.007 INFO [stderr]   |
Dec 15 06:58:36.007 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 15 06:58:36.007 INFO [stderr] 
Dec 15 06:58:37.213 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 15 06:58:37.213 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:58:37.213 INFO [stderr]   |
Dec 15 06:58:37.213 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:58:37.213 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:58:37.213 INFO [stderr]   |
Dec 15 06:58:37.213 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:37.213 INFO [stderr] 
Dec 15 06:58:37.522 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:37.522 INFO [stderr]    --> src/env.rs:974:17
Dec 15 06:58:37.522 INFO [stderr]     |
Dec 15 06:58:37.522 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 15 06:58:37.522 INFO [stderr]     |                 ----^^^
Dec 15 06:58:37.522 INFO [stderr]     |                 |
Dec 15 06:58:37.522 INFO [stderr]     |                 help: remove this `mut`
Dec 15 06:58:37.522 INFO [stderr]     |
Dec 15 06:58:37.522 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 06:58:37.522 INFO [stderr] 
Dec 15 06:58:37.551 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:37.551 INFO [stderr]     --> src/env.rs:1194:13
Dec 15 06:58:37.551 INFO [stderr]      |
Dec 15 06:58:37.551 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 15 06:58:37.551 INFO [stderr]      |             ----^^^
Dec 15 06:58:37.551 INFO [stderr]      |             |
Dec 15 06:58:37.551 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:37.551 INFO [stderr] 
Dec 15 06:58:37.782 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:37.786 INFO [stderr]     --> src/check.rs:1302:13
Dec 15 06:58:37.786 INFO [stderr]      |
Dec 15 06:58:37.787 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 15 06:58:37.787 INFO [stderr]      |             ----^^^^^^^
Dec 15 06:58:37.787 INFO [stderr]      |             |
Dec 15 06:58:37.787 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:58:37.787 INFO [stderr] 
Dec 15 06:58:37.990 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:58:37.991 INFO [stderr]     --> src/check.rs:2882:17
Dec 15 06:58:37.991 INFO [stderr]      |
Dec 15 06:58:37.991 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 15 06:58:37.991 INFO [stderr]      |                 ----^^^^^^^
Dec 15 06:58:37.991 INFO [stderr]      |                 |
Dec 15 06:58:37.991 INFO [stderr]      |                 help: remove this `mut`
Dec 15 06:58:37.991 INFO [stderr] 
Dec 15 06:58:42.143 INFO [stderr] warning: unused import: `std::str`
Dec 15 06:58:42.143 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 15 06:58:42.143 INFO [stderr]   |
Dec 15 06:58:42.143 INFO [stderr] 8 | use std::str;
Dec 15 06:58:42.143 INFO [stderr]   |     ^^^^^^^^
Dec 15 06:58:42.143 INFO [stderr]   |
Dec 15 06:58:42.143 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:58:42.143 INFO [stderr] 
Dec 15 06:58:48.087 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.54s
Dec 15 06:58:48.091 INFO [stderr] su: No module specific data is present
Dec 15 06:58:48.887 INFO running `"docker" "inspect" "157dbc6859a51df973278a1f72a8803c7583c14a830e69fa572a94a442c67d23"`
Dec 15 06:58:49.207 INFO running `"docker" "rm" "-f" "157dbc6859a51df973278a1f72a8803c7583c14a830e69fa572a94a442c67d23"`
Dec 15 06:58:49.475 INFO [stdout] 157dbc6859a51df973278a1f72a8803c7583c14a830e69fa572a94a442c67d23
Dec 15 06:58:49.483 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 06:58:50.034 INFO [stdout] a71f11c2fb263622338935ebcee703e806530cbdc6a986fadbac7a1f4f2a5ab7
Dec 15 06:58:50.037 INFO running `"docker" "start" "-a" "a71f11c2fb263622338935ebcee703e806530cbdc6a986fadbac7a1f4f2a5ab7"`
Dec 15 06:58:51.359 INFO [stderr] usermod: no changes
Dec 15 06:58:51.574 INFO [stderr]    Compiling kailua_test v1.0.4
Dec 15 06:58:55.143 INFO [stderr]    Compiling kailua_check v1.1.0 (/source)
Dec 15 06:59:01.440 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 15 06:59:01.440 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:59:01.440 INFO [stderr]   |
Dec 15 06:59:01.440 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:59:01.440 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:59:01.441 INFO [stderr]   |
Dec 15 06:59:01.441 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 15 06:59:01.441 INFO [stderr] 
Dec 15 06:59:02.267 INFO [stderr] warning: unused import: `std::str`
Dec 15 06:59:02.267 INFO [stderr]  --> src/bin/kailua-check.rs:8:5
Dec 15 06:59:02.267 INFO [stderr]   |
Dec 15 06:59:02.267 INFO [stderr] 8 | use std::str;
Dec 15 06:59:02.267 INFO [stderr]   |     ^^^^^^^^
Dec 15 06:59:02.267 INFO [stderr]   |
Dec 15 06:59:02.267 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:59:02.267 INFO [stderr] 
Dec 15 06:59:03.294 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 15 06:59:03.295 INFO [stderr]  --> src/options.rs:4:5
Dec 15 06:59:03.295 INFO [stderr]   |
Dec 15 06:59:03.295 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 15 06:59:03.295 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 06:59:03.298 INFO [stderr]   |
Dec 15 06:59:03.299 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 06:59:03.299 INFO [stderr] 
Dec 15 06:59:04.180 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:59:04.180 INFO [stderr]    --> src/env.rs:974:17
Dec 15 06:59:04.180 INFO [stderr]     |
Dec 15 06:59:04.180 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Dec 15 06:59:04.180 INFO [stderr]     |                 ----^^^
Dec 15 06:59:04.180 INFO [stderr]     |                 |
Dec 15 06:59:04.180 INFO [stderr]     |                 help: remove this `mut`
Dec 15 06:59:04.180 INFO [stderr]     |
Dec 15 06:59:04.180 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 06:59:04.180 INFO [stderr] 
Dec 15 06:59:04.243 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:59:04.243 INFO [stderr]     --> src/env.rs:1194:13
Dec 15 06:59:04.243 INFO [stderr]      |
Dec 15 06:59:04.243 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Dec 15 06:59:04.243 INFO [stderr]      |             ----^^^
Dec 15 06:59:04.243 INFO [stderr]      |             |
Dec 15 06:59:04.243 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:59:04.243 INFO [stderr] 
Dec 15 06:59:04.871 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:59:04.871 INFO [stderr]     --> src/check.rs:1302:13
Dec 15 06:59:04.871 INFO [stderr]      |
Dec 15 06:59:04.871 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Dec 15 06:59:04.871 INFO [stderr]      |             ----^^^^^^^
Dec 15 06:59:04.871 INFO [stderr]      |             |
Dec 15 06:59:04.871 INFO [stderr]      |             help: remove this `mut`
Dec 15 06:59:04.871 INFO [stderr] 
Dec 15 06:59:05.819 INFO [stderr] warning: variable does not need to be mutable
Dec 15 06:59:05.819 INFO [stderr]     --> src/check.rs:2882:17
Dec 15 06:59:05.819 INFO [stderr]      |
Dec 15 06:59:05.819 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Dec 15 06:59:05.819 INFO [stderr]      |                 ----^^^^^^^
Dec 15 06:59:05.819 INFO [stderr]      |                 |
Dec 15 06:59:05.819 INFO [stderr]      |                 help: remove this `mut`
Dec 15 06:59:05.819 INFO [stderr] 
Dec 15 06:59:12.830 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.42s
Dec 15 06:59:12.843 INFO [stderr] su: No module specific data is present
Dec 15 06:59:13.733 INFO running `"docker" "inspect" "a71f11c2fb263622338935ebcee703e806530cbdc6a986fadbac7a1f4f2a5ab7"`
Dec 15 06:59:14.012 INFO running `"docker" "rm" "-f" "a71f11c2fb263622338935ebcee703e806530cbdc6a986fadbac7a1f4f2a5ab7"`
Dec 15 06:59:14.239 INFO [stdout] a71f11c2fb263622338935ebcee703e806530cbdc6a986fadbac7a1f4f2a5ab7