Dec 15 07:42:14.060 INFO testing ioc-0.6.2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 07:42:14.060 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 07:42:14.383 INFO [stdout] d45b808c6437980ddec5860634c6ac465e7c9bd6c858b48942b6ea6e4770e8bf
Dec 15 07:42:14.388 INFO running `"docker" "start" "-a" "d45b808c6437980ddec5860634c6ac465e7c9bd6c858b48942b6ea6e4770e8bf"`
Dec 15 07:42:15.319 INFO [stderr] usermod: no changes
Dec 15 07:42:15.436 INFO [stderr]    Compiling downcast v0.6.0
Dec 15 07:42:16.067 INFO [stderr]    Compiling ioc v0.6.2 (/source)
Dec 15 07:42:16.759 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 07:42:16.759 INFO [stderr]  --> src/lib.rs:1:1
Dec 15 07:42:16.759 INFO [stderr]   |
Dec 15 07:42:16.759 INFO [stderr] 1 | #[macro_use] 
Dec 15 07:42:16.759 INFO [stderr]   | ^^^^^^^^^^^^
Dec 15 07:42:16.759 INFO [stderr]   |
Dec 15 07:42:16.759 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 07:42:16.759 INFO [stderr] 
Dec 15 07:42:16.767 INFO [stderr] warning: unused import: `TryLockError`
Dec 15 07:42:16.767 INFO [stderr]  --> src/container.rs:9:17
Dec 15 07:42:16.767 INFO [stderr]   |
Dec 15 07:42:16.767 INFO [stderr] 9 | use std::sync::{TryLockError, Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
Dec 15 07:42:16.767 INFO [stderr]   |                 ^^^^^^^^^^^^
Dec 15 07:42:16.767 INFO [stderr] 
Dec 15 07:42:21.151 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:21.151 INFO [stderr]   --> src/container.rs:18:33
Dec 15 07:42:21.151 INFO [stderr]    |
Dec 15 07:42:21.151 INFO [stderr] 18 | pub type ReadGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockReadGuard<'a, Box<Base>>>;
Dec 15 07:42:21.151 INFO [stderr]    |                                 ^^^^^^
Dec 15 07:42:21.151 INFO [stderr]    |
Dec 15 07:42:21.151 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 15 07:42:21.151 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:21.151 INFO [stderr] 
Dec 15 07:42:21.151 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:21.151 INFO [stderr]   --> src/container.rs:19:34
Dec 15 07:42:21.151 INFO [stderr]    |
Dec 15 07:42:21.151 INFO [stderr] 19 | pub type WriteGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockWriteGuard<'a, Box<Base>>>;
Dec 15 07:42:21.151 INFO [stderr]    |                                  ^^^^^^
Dec 15 07:42:21.151 INFO [stderr]    |
Dec 15 07:42:21.151 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:21.151 INFO [stderr] 
Dec 15 07:42:21.711 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
Dec 15 07:42:21.711 INFO [stderr] su: No module specific data is present
Dec 15 07:42:22.275 INFO running `"docker" "inspect" "d45b808c6437980ddec5860634c6ac465e7c9bd6c858b48942b6ea6e4770e8bf"`
Dec 15 07:42:22.589 INFO running `"docker" "rm" "-f" "d45b808c6437980ddec5860634c6ac465e7c9bd6c858b48942b6ea6e4770e8bf"`
Dec 15 07:42:22.931 INFO [stdout] d45b808c6437980ddec5860634c6ac465e7c9bd6c858b48942b6ea6e4770e8bf
Dec 15 07:42:22.939 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 07:42:23.339 INFO [stdout] 53352fff1fa46bdcb7f1474207622dcfe3ea4d5315946a998f65a3a2aa83286a
Dec 15 07:42:23.344 INFO running `"docker" "start" "-a" "53352fff1fa46bdcb7f1474207622dcfe3ea4d5315946a998f65a3a2aa83286a"`
Dec 15 07:42:24.279 INFO [stderr] usermod: no changes
Dec 15 07:42:24.375 INFO [stderr]    Compiling ioc v0.6.2 (/source)
Dec 15 07:42:25.270 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 07:42:25.270 INFO [stderr]  --> src/lib.rs:1:1
Dec 15 07:42:25.270 INFO [stderr]   |
Dec 15 07:42:25.270 INFO [stderr] 1 | #[macro_use] 
Dec 15 07:42:25.270 INFO [stderr]   | ^^^^^^^^^^^^
Dec 15 07:42:25.270 INFO [stderr]   |
Dec 15 07:42:25.270 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 07:42:25.270 INFO [stderr] 
Dec 15 07:42:25.279 INFO [stderr] warning: unused import: `TryLockError`
Dec 15 07:42:25.279 INFO [stderr]  --> src/container.rs:9:17
Dec 15 07:42:25.279 INFO [stderr]   |
Dec 15 07:42:25.279 INFO [stderr] 9 | use std::sync::{TryLockError, Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
Dec 15 07:42:25.279 INFO [stderr]   |                 ^^^^^^^^^^^^
Dec 15 07:42:25.279 INFO [stderr] 
Dec 15 07:42:29.379 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:29.379 INFO [stderr]   --> src/container.rs:18:33
Dec 15 07:42:29.379 INFO [stderr]    |
Dec 15 07:42:29.379 INFO [stderr] 18 | pub type ReadGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockReadGuard<'a, Box<Base>>>;
Dec 15 07:42:29.379 INFO [stderr]    |                                 ^^^^^^
Dec 15 07:42:29.379 INFO [stderr]    |
Dec 15 07:42:29.379 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 15 07:42:29.379 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:29.379 INFO [stderr] 
Dec 15 07:42:29.379 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:29.379 INFO [stderr]   --> src/container.rs:19:34
Dec 15 07:42:29.379 INFO [stderr]    |
Dec 15 07:42:29.379 INFO [stderr] 19 | pub type WriteGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockWriteGuard<'a, Box<Base>>>;
Dec 15 07:42:29.379 INFO [stderr]    |                                  ^^^^^^
Dec 15 07:42:29.379 INFO [stderr]    |
Dec 15 07:42:29.379 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:29.379 INFO [stderr] 
Dec 15 07:42:29.723 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.41s
Dec 15 07:42:29.723 INFO [stderr] su: No module specific data is present
Dec 15 07:42:30.215 INFO running `"docker" "inspect" "53352fff1fa46bdcb7f1474207622dcfe3ea4d5315946a998f65a3a2aa83286a"`
Dec 15 07:42:30.493 INFO running `"docker" "rm" "-f" "53352fff1fa46bdcb7f1474207622dcfe3ea4d5315946a998f65a3a2aa83286a"`
Dec 15 07:42:30.787 INFO [stdout] 53352fff1fa46bdcb7f1474207622dcfe3ea4d5315946a998f65a3a2aa83286a