Nov 30 04:12:48.579 INFO checking devcat-studio/kailua against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 04:12:48.579 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 04:12:48.968 INFO [stdout] cabd156f0bb44aa5a2d1ecb501177aadcea8a908efb1fc13f105f651e296d9d6
Nov 30 04:12:48.974 INFO running `"docker" "start" "-a" "cabd156f0bb44aa5a2d1ecb501177aadcea8a908efb1fc13f105f651e296d9d6"`
Nov 30 04:12:50.286 INFO [stderr] usermod: no changes
Nov 30 04:12:50.575 INFO [stderr]     Checking smallvec v0.4.1
Nov 30 04:12:50.575 INFO [stderr]     Checking parse-generics-shim v0.1.1
Nov 30 04:12:50.594 INFO [stderr]     Checking kailua_env v1.0.4 (/source/kailua_env)
Nov 30 04:12:50.602 INFO [stderr]     Checking atomic v0.3.4
Nov 30 04:12:50.605 INFO [stderr]     Checking owning_ref v0.2.4
Nov 30 04:12:50.606 INFO [stderr]     Checking thread-id v3.2.0
Nov 30 04:12:50.608 INFO [stderr]     Checking clap v2.25.0
Nov 30 04:12:52.864 INFO [stderr]     Checking env_logger v0.4.3
Nov 30 04:12:52.864 INFO [stderr]     Checking kailua_langsvr_protocol v1.0.5 (/source/kailua_langsvr_protocol)
Nov 30 04:12:54.392 INFO [stderr]     Checking kailua_diag v1.0.4 (/source/kailua_diag)
Nov 30 04:12:54.902 INFO [stderr]     Checking parking_lot_core v0.2.2
Nov 30 04:12:58.934 INFO [stderr]     Checking kailua_syntax v1.1.0 (/source/kailua_syntax)
Nov 30 04:12:59.152 INFO [stderr]     Checking parking_lot v0.4.4
Nov 30 04:13:10.950 INFO [stderr]     Checking kailua_types v1.1.0 (/source/kailua_types)
Nov 30 04:13:18.372 INFO [stderr] warning: unused macro definition
Nov 30 04:13:18.373 INFO [stderr]     --> kailua_types/src/ty/value.rs:1875:5
Nov 30 04:13:18.373 INFO [stderr]      |
Nov 30 04:13:18.373 INFO [stderr] 1875 | /     macro_rules! hash {
Nov 30 04:13:18.373 INFO [stderr] 1876 | |         ($($k:ident = $v:expr),*) => (vec![$((s(stringify!($k)), $v)),*])
Nov 30 04:13:18.374 INFO [stderr] 1877 | |     }
Nov 30 04:13:18.374 INFO [stderr]      | |_____^
Nov 30 04:13:18.396 INFO [stderr]      |
Nov 30 04:13:18.397 INFO [stderr]      = note: #[warn(unused_macros)] on by default
Nov 30 04:13:18.397 INFO [stderr] 
Nov 30 04:13:20.055 INFO [stderr]     Checking kailua_test v1.0.4 (/source/kailua_test)
Nov 30 04:13:25.696 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Nov 30 04:13:25.697 INFO [stderr]    --> kailua_test/src/lib.rs:159:5
Nov 30 04:13:25.697 INFO [stderr]     |
Nov 30 04:13:25.697 INFO [stderr] 159 | use std::ascii::AsciiExt;
Nov 30 04:13:25.698 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:25.698 INFO [stderr]     |
Nov 30 04:13:25.698 INFO [stderr]     = note: #[warn(deprecated)] on by default
Nov 30 04:13:25.698 INFO [stderr] 
Nov 30 04:13:26.032 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Nov 30 04:13:26.033 INFO [stderr]    --> kailua_test/src/lib.rs:159:5
Nov 30 04:13:26.033 INFO [stderr]     |
Nov 30 04:13:26.033 INFO [stderr] 159 | use std::ascii::AsciiExt;
Nov 30 04:13:26.033 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:26.034 INFO [stderr]     |
Nov 30 04:13:26.034 INFO [stderr]     = note: #[warn(deprecated)] on by default
Nov 30 04:13:26.034 INFO [stderr] 
Nov 30 04:13:27.028 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Nov 30 04:13:27.029 INFO [stderr]    --> kailua_test/src/lib.rs:159:5
Nov 30 04:13:27.029 INFO [stderr]     |
Nov 30 04:13:27.029 INFO [stderr] 159 | use std::ascii::AsciiExt;
Nov 30 04:13:27.030 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:27.030 INFO [stderr]     |
Nov 30 04:13:27.031 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 30 04:13:27.031 INFO [stderr] 
Nov 30 04:13:27.820 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Nov 30 04:13:27.820 INFO [stderr]    --> kailua_test/src/lib.rs:159:5
Nov 30 04:13:27.820 INFO [stderr]     |
Nov 30 04:13:27.820 INFO [stderr] 159 | use std::ascii::AsciiExt;
Nov 30 04:13:27.820 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:27.821 INFO [stderr]     |
Nov 30 04:13:27.821 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 30 04:13:27.821 INFO [stderr] 
Nov 30 04:13:28.505 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:28.505 INFO [stderr]   --> kailua_types/src/ty/display.rs:78:13
Nov 30 04:13:28.505 INFO [stderr]    |
Nov 30 04:13:28.506 INFO [stderr] 78 |         let mut spans = disambig.entry(name.base.clone()).or_insert_with(|| HashMap::new());
Nov 30 04:13:28.506 INFO [stderr]    |             ----^^^^^
Nov 30 04:13:28.506 INFO [stderr]    |             |
Nov 30 04:13:28.507 INFO [stderr]    |             help: remove this `mut`
Nov 30 04:13:28.507 INFO [stderr]    |
Nov 30 04:13:28.507 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 04:13:28.507 INFO [stderr] 
Nov 30 04:13:31.968 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:31.969 INFO [stderr]    --> kailua_types/src/env/mod.rs:381:17
Nov 30 04:13:31.969 INFO [stderr]     |
Nov 30 04:13:31.970 INFO [stderr] 381 |             let mut row =
Nov 30 04:13:31.970 INFO [stderr]     |                 ----^^^
Nov 30 04:13:31.970 INFO [stderr]     |                 |
Nov 30 04:13:31.971 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:31.971 INFO [stderr] 
Nov 30 04:13:31.971 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:31.971 INFO [stderr]    --> kailua_types/src/env/mod.rs:388:17
Nov 30 04:13:31.971 INFO [stderr]     |
Nov 30 04:13:31.971 INFO [stderr] 388 |             let mut row =
Nov 30 04:13:31.971 INFO [stderr]     |                 ----^^^
Nov 30 04:13:31.971 INFO [stderr]     |                 |
Nov 30 04:13:31.971 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:31.971 INFO [stderr] 
Nov 30 04:13:33.190 INFO [stderr]     Checking kailua_check v1.1.0 (/source/kailua_check)
Nov 30 04:13:34.392 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:34.392 INFO [stderr]   --> kailua_types/src/ty/display.rs:78:13
Nov 30 04:13:34.392 INFO [stderr]    |
Nov 30 04:13:34.392 INFO [stderr] 78 |         let mut spans = disambig.entry(name.base.clone()).or_insert_with(|| HashMap::new());
Nov 30 04:13:34.392 INFO [stderr]    |             ----^^^^^
Nov 30 04:13:34.392 INFO [stderr]    |             |
Nov 30 04:13:34.392 INFO [stderr]    |             help: remove this `mut`
Nov 30 04:13:34.392 INFO [stderr]    |
Nov 30 04:13:34.392 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 04:13:34.392 INFO [stderr] 
Nov 30 04:13:36.620 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Nov 30 04:13:36.620 INFO [stderr]  --> kailua_check/src/options.rs:4:5
Nov 30 04:13:36.620 INFO [stderr]   |
Nov 30 04:13:36.620 INFO [stderr] 4 | use std::ascii::AsciiExt;
Nov 30 04:13:36.620 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:36.620 INFO [stderr]   |
Nov 30 04:13:36.620 INFO [stderr]   = note: #[warn(deprecated)] on by default
Nov 30 04:13:36.620 INFO [stderr] 
Nov 30 04:13:37.602 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:37.602 INFO [stderr]    --> kailua_types/src/env/mod.rs:381:17
Nov 30 04:13:37.603 INFO [stderr]     |
Nov 30 04:13:37.603 INFO [stderr] 381 |             let mut row =
Nov 30 04:13:37.603 INFO [stderr]     |                 ----^^^
Nov 30 04:13:37.604 INFO [stderr]     |                 |
Nov 30 04:13:37.604 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:37.604 INFO [stderr] 
Nov 30 04:13:37.604 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:37.605 INFO [stderr]    --> kailua_types/src/env/mod.rs:388:17
Nov 30 04:13:37.605 INFO [stderr]     |
Nov 30 04:13:37.605 INFO [stderr] 388 |             let mut row =
Nov 30 04:13:37.605 INFO [stderr]     |                 ----^^^
Nov 30 04:13:37.605 INFO [stderr]     |                 |
Nov 30 04:13:37.605 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:37.605 INFO [stderr] 
Nov 30 04:13:37.748 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Nov 30 04:13:37.748 INFO [stderr]  --> kailua_check/src/options.rs:4:5
Nov 30 04:13:37.748 INFO [stderr]   |
Nov 30 04:13:37.748 INFO [stderr] 4 | use std::ascii::AsciiExt;
Nov 30 04:13:37.748 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:37.748 INFO [stderr]   |
Nov 30 04:13:37.748 INFO [stderr]   = note: #[warn(deprecated)] on by default
Nov 30 04:13:37.748 INFO [stderr] 
Nov 30 04:13:39.252 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Nov 30 04:13:39.252 INFO [stderr]  --> kailua_check/src/options.rs:4:5
Nov 30 04:13:39.252 INFO [stderr]   |
Nov 30 04:13:39.252 INFO [stderr] 4 | use std::ascii::AsciiExt;
Nov 30 04:13:39.252 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:39.252 INFO [stderr]   |
Nov 30 04:13:39.252 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:13:39.252 INFO [stderr] 
Nov 30 04:13:39.768 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:39.768 INFO [stderr]    --> kailua_check/src/env.rs:974:17
Nov 30 04:13:39.768 INFO [stderr]     |
Nov 30 04:13:39.768 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Nov 30 04:13:39.768 INFO [stderr]     |                 ----^^^
Nov 30 04:13:39.768 INFO [stderr]     |                 |
Nov 30 04:13:39.768 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:39.768 INFO [stderr]     |
Nov 30 04:13:39.768 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 04:13:39.768 INFO [stderr] 
Nov 30 04:13:39.788 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:39.788 INFO [stderr]     --> kailua_check/src/env.rs:1194:13
Nov 30 04:13:39.788 INFO [stderr]      |
Nov 30 04:13:39.788 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Nov 30 04:13:39.788 INFO [stderr]      |             ----^^^
Nov 30 04:13:39.788 INFO [stderr]      |             |
Nov 30 04:13:39.788 INFO [stderr]      |             help: remove this `mut`
Nov 30 04:13:39.788 INFO [stderr] 
Nov 30 04:13:40.100 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:40.100 INFO [stderr]     --> kailua_check/src/check.rs:1302:13
Nov 30 04:13:40.100 INFO [stderr]      |
Nov 30 04:13:40.100 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Nov 30 04:13:40.100 INFO [stderr]      |             ----^^^^^^^
Nov 30 04:13:40.100 INFO [stderr]      |             |
Nov 30 04:13:40.100 INFO [stderr]      |             help: remove this `mut`
Nov 30 04:13:40.100 INFO [stderr] 
Nov 30 04:13:40.272 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Nov 30 04:13:40.272 INFO [stderr]  --> kailua_check/src/options.rs:4:5
Nov 30 04:13:40.272 INFO [stderr]   |
Nov 30 04:13:40.272 INFO [stderr] 4 | use std::ascii::AsciiExt;
Nov 30 04:13:40.272 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 04:13:40.272 INFO [stderr]   |
Nov 30 04:13:40.272 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:13:40.272 INFO [stderr] 
Nov 30 04:13:40.317 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:40.317 INFO [stderr]     --> kailua_check/src/check.rs:2882:17
Nov 30 04:13:40.317 INFO [stderr]      |
Nov 30 04:13:40.317 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Nov 30 04:13:40.317 INFO [stderr]      |                 ----^^^^^^^
Nov 30 04:13:40.317 INFO [stderr]      |                 |
Nov 30 04:13:40.317 INFO [stderr]      |                 help: remove this `mut`
Nov 30 04:13:40.317 INFO [stderr] 
Nov 30 04:13:40.704 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:40.704 INFO [stderr]    --> kailua_check/src/env.rs:974:17
Nov 30 04:13:40.704 INFO [stderr]     |
Nov 30 04:13:40.704 INFO [stderr] 974 |             let mut def = def.expect("Env::ensure_var with an undefined var");
Nov 30 04:13:40.704 INFO [stderr]     |                 ----^^^
Nov 30 04:13:40.704 INFO [stderr]     |                 |
Nov 30 04:13:40.704 INFO [stderr]     |                 help: remove this `mut`
Nov 30 04:13:40.704 INFO [stderr]     |
Nov 30 04:13:40.704 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 04:13:40.704 INFO [stderr] 
Nov 30 04:13:40.726 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:40.726 INFO [stderr]     --> kailua_check/src/env.rs:1194:13
Nov 30 04:13:40.726 INFO [stderr]      |
Nov 30 04:13:40.726 INFO [stderr] 1194 |         let mut def = self.context.ids.entry(id).or_insert_with(|| {
Nov 30 04:13:40.726 INFO [stderr]      |             ----^^^
Nov 30 04:13:40.726 INFO [stderr]      |             |
Nov 30 04:13:40.726 INFO [stderr]      |             help: remove this `mut`
Nov 30 04:13:40.726 INFO [stderr] 
Nov 30 04:13:40.748 INFO [stderr]     Checking kailua_workspace v1.1.0 (/source/kailua_workspace)
Nov 30 04:13:41.452 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:41.452 INFO [stderr]     --> kailua_check/src/check.rs:1302:13
Nov 30 04:13:41.452 INFO [stderr]      |
Nov 30 04:13:41.452 INFO [stderr] 1302 |         let mut modules = self.pending_modules.last_mut().unwrap();
Nov 30 04:13:41.452 INFO [stderr]      |             ----^^^^^^^
Nov 30 04:13:41.452 INFO [stderr]      |             |
Nov 30 04:13:41.452 INFO [stderr]      |             help: remove this `mut`
Nov 30 04:13:41.452 INFO [stderr] 
Nov 30 04:13:42.503 INFO [stderr] warning: variable does not need to be mutable
Nov 30 04:13:42.503 INFO [stderr]     --> kailua_check/src/check.rs:2882:17
Nov 30 04:13:42.503 INFO [stderr]      |
Nov 30 04:13:42.503 INFO [stderr] 2882 |             let mut modules = self.pending_modules.last_mut().expect("missing PendingModules");
Nov 30 04:13:42.503 INFO [stderr]      |                 ----^^^^^^^
Nov 30 04:13:42.503 INFO [stderr]      |                 |
Nov 30 04:13:42.503 INFO [stderr]      |                 help: remove this `mut`
Nov 30 04:13:42.503 INFO [stderr] 
Nov 30 04:13:46.284 INFO [stderr] warning: unused import: `std::str`
Nov 30 04:13:46.284 INFO [stderr]  --> kailua_check/src/bin/kailua-check.rs:8:5
Nov 30 04:13:46.284 INFO [stderr]   |
Nov 30 04:13:46.284 INFO [stderr] 8 | use std::str;
Nov 30 04:13:46.284 INFO [stderr]   |     ^^^^^^^^
Nov 30 04:13:46.284 INFO [stderr]   |
Nov 30 04:13:46.284 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:13:46.284 INFO [stderr] 
Nov 30 04:13:46.456 INFO [stderr] warning: unused import: `std::str`
Nov 30 04:13:46.456 INFO [stderr]  --> kailua_check/src/bin/kailua-check.rs:8:5
Nov 30 04:13:46.456 INFO [stderr]   |
Nov 30 04:13:46.456 INFO [stderr] 8 | use std::str;
Nov 30 04:13:46.456 INFO [stderr]   |     ^^^^^^^^
Nov 30 04:13:46.456 INFO [stderr]   |
Nov 30 04:13:46.456 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 04:13:46.456 INFO [stderr] 
Nov 30 04:13:46.736 INFO [stderr]     Checking kailua_langsvr v1.1.0 (/source/kailua_langsvr)
Nov 30 04:13:49.712 INFO [stderr] warning: type annotations needed
Nov 30 04:13:49.712 INFO [stderr]   --> kailua_langsvr/src/diags.rs:97:28
Nov 30 04:13:49.712 INFO [stderr]    |
Nov 30 04:13:49.712 INFO [stderr] 97 |         (self as *const _).hash(state)
Nov 30 04:13:49.712 INFO [stderr]    |                            ^^^^
Nov 30 04:13:49.712 INFO [stderr]    |
Nov 30 04:13:49.712 INFO [stderr]    = note: #[warn(tyvar_behind_raw_pointer)] on by default
Nov 30 04:13:49.712 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
Nov 30 04:13:49.712 INFO [stderr]    = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
Nov 30 04:13:49.712 INFO [stderr] 
Nov 30 04:13:50.180 INFO [stderr] warning: type annotations needed
Nov 30 04:13:50.180 INFO [stderr]   --> kailua_langsvr/src/diags.rs:97:28
Nov 30 04:13:50.180 INFO [stderr]    |
Nov 30 04:13:50.180 INFO [stderr] 97 |         (self as *const _).hash(state)
Nov 30 04:13:50.180 INFO [stderr]    |                            ^^^^
Nov 30 04:13:50.180 INFO [stderr]    |
Nov 30 04:13:50.180 INFO [stderr]    = note: #[warn(tyvar_behind_raw_pointer)] on by default
Nov 30 04:13:50.180 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
Nov 30 04:13:50.180 INFO [stderr]    = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906>
Nov 30 04:13:50.180 INFO [stderr] 
Nov 30 04:13:50.871 INFO [stderr]     Checking kailua v1.1.0 (/source)
Nov 30 04:13:54.912 INFO [stderr] warning: unused import: `std::str`
Nov 30 04:13:54.912 INFO [stderr]   --> src/main.rs:18:9
Nov 30 04:13:54.912 INFO [stderr]    |
Nov 30 04:13:54.912 INFO [stderr] 18 |     use std::str;
Nov 30 04:13:54.912 INFO [stderr]    |         ^^^^^^^^
Nov 30 04:13:54.912 INFO [stderr]    |
Nov 30 04:13:54.912 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 30 04:13:54.912 INFO [stderr] 
Nov 30 04:13:55.060 INFO [stderr] warning: unused import: `std::str`
Nov 30 04:13:55.060 INFO [stderr]   --> src/main.rs:18:9
Nov 30 04:13:55.060 INFO [stderr]    |
Nov 30 04:13:55.060 INFO [stderr] 18 |     use std::str;
Nov 30 04:13:55.061 INFO [stderr]    |         ^^^^^^^^
Nov 30 04:13:55.061 INFO [stderr]    |
Nov 30 04:13:55.061 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 30 04:13:55.061 INFO [stderr] 
Nov 30 04:13:55.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
Nov 30 04:13:55.313 INFO [stderr] su: No module specific data is present
Nov 30 04:13:56.075 INFO running `"docker" "inspect" "cabd156f0bb44aa5a2d1ecb501177aadcea8a908efb1fc13f105f651e296d9d6"`
Nov 30 04:13:56.374 INFO running `"docker" "rm" "-f" "cabd156f0bb44aa5a2d1ecb501177aadcea8a908efb1fc13f105f651e296d9d6"`
Nov 30 04:13:56.747 INFO [stdout] cabd156f0bb44aa5a2d1ecb501177aadcea8a908efb1fc13f105f651e296d9d6