Dec 15 07:42:13.812 INFO testing ioc-0.6.2 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 07:42:13.812 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 07:42:14.283 INFO [stdout] 067a7ca15fb42207d42004bb36281acab5e6d68dc1542ca126b6e21365c8ca07
Dec 15 07:42:14.285 INFO running `"docker" "start" "-a" "067a7ca15fb42207d42004bb36281acab5e6d68dc1542ca126b6e21365c8ca07"`
Dec 15 07:42:15.335 INFO [stderr] usermod: no changes
Dec 15 07:42:15.427 INFO [stderr]    Compiling downcast v0.6.0
Dec 15 07:42:16.131 INFO [stderr]    Compiling ioc v0.6.2 (/source)
Dec 15 07:42:16.811 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 07:42:16.811 INFO [stderr]  --> src/lib.rs:1:1
Dec 15 07:42:16.811 INFO [stderr]   |
Dec 15 07:42:16.811 INFO [stderr] 1 | #[macro_use] 
Dec 15 07:42:16.811 INFO [stderr]   | ^^^^^^^^^^^^
Dec 15 07:42:16.811 INFO [stderr]   |
Dec 15 07:42:16.811 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 07:42:16.811 INFO [stderr] 
Dec 15 07:42:16.811 INFO [stderr] warning: unused import: `TryLockError`
Dec 15 07:42:16.811 INFO [stderr]  --> src/container.rs:9:17
Dec 15 07:42:16.811 INFO [stderr]   |
Dec 15 07:42:16.811 INFO [stderr] 9 | use std::sync::{TryLockError, Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
Dec 15 07:42:16.811 INFO [stderr]   |                 ^^^^^^^^^^^^
Dec 15 07:42:16.811 INFO [stderr] 
Dec 15 07:42:20.959 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:20.959 INFO [stderr]   --> src/container.rs:18:33
Dec 15 07:42:20.959 INFO [stderr]    |
Dec 15 07:42:20.959 INFO [stderr] 18 | pub type ReadGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockReadGuard<'a, Box<Base>>>;
Dec 15 07:42:20.959 INFO [stderr]    |                                 ^^^^^^
Dec 15 07:42:20.959 INFO [stderr]    |
Dec 15 07:42:20.959 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 15 07:42:20.959 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:20.959 INFO [stderr] 
Dec 15 07:42:20.959 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:20.959 INFO [stderr]   --> src/container.rs:19:34
Dec 15 07:42:20.959 INFO [stderr]    |
Dec 15 07:42:20.959 INFO [stderr] 19 | pub type WriteGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockWriteGuard<'a, Box<Base>>>;
Dec 15 07:42:20.959 INFO [stderr]    |                                  ^^^^^^
Dec 15 07:42:20.959 INFO [stderr]    |
Dec 15 07:42:20.959 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:20.959 INFO [stderr] 
Dec 15 07:42:21.570 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
Dec 15 07:42:21.572 INFO [stderr] su: No module specific data is present
Dec 15 07:42:22.035 INFO running `"docker" "inspect" "067a7ca15fb42207d42004bb36281acab5e6d68dc1542ca126b6e21365c8ca07"`
Dec 15 07:42:22.435 INFO running `"docker" "rm" "-f" "067a7ca15fb42207d42004bb36281acab5e6d68dc1542ca126b6e21365c8ca07"`
Dec 15 07:42:22.739 INFO [stdout] 067a7ca15fb42207d42004bb36281acab5e6d68dc1542ca126b6e21365c8ca07
Dec 15 07:42:22.747 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 07:42:23.223 INFO [stdout] 0b5087ff5785b2ba0774ded3f0d866831187ff54a7c522b4dfc03ee698e309bd
Dec 15 07:42:23.231 INFO running `"docker" "start" "-a" "0b5087ff5785b2ba0774ded3f0d866831187ff54a7c522b4dfc03ee698e309bd"`
Dec 15 07:42:24.221 INFO [stderr] usermod: no changes
Dec 15 07:42:24.285 INFO [stderr]    Compiling ioc v0.6.2 (/source)
Dec 15 07:42:25.250 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 07:42:25.250 INFO [stderr]  --> src/lib.rs:1:1
Dec 15 07:42:25.250 INFO [stderr]   |
Dec 15 07:42:25.250 INFO [stderr] 1 | #[macro_use] 
Dec 15 07:42:25.250 INFO [stderr]   | ^^^^^^^^^^^^
Dec 15 07:42:25.250 INFO [stderr]   |
Dec 15 07:42:25.250 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 07:42:25.250 INFO [stderr] 
Dec 15 07:42:25.259 INFO [stderr] warning: unused import: `TryLockError`
Dec 15 07:42:25.259 INFO [stderr]  --> src/container.rs:9:17
Dec 15 07:42:25.259 INFO [stderr]   |
Dec 15 07:42:25.259 INFO [stderr] 9 | use std::sync::{TryLockError, Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
Dec 15 07:42:25.259 INFO [stderr]   |                 ^^^^^^^^^^^^
Dec 15 07:42:25.259 INFO [stderr] 
Dec 15 07:42:29.546 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:29.546 INFO [stderr]   --> src/container.rs:18:33
Dec 15 07:42:29.546 INFO [stderr]    |
Dec 15 07:42:29.546 INFO [stderr] 18 | pub type ReadGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockReadGuard<'a, Box<Base>>>;
Dec 15 07:42:29.546 INFO [stderr]    |                                 ^^^^^^
Dec 15 07:42:29.546 INFO [stderr]    |
Dec 15 07:42:29.546 INFO [stderr]    = note: #[warn(type_alias_bounds)] on by default
Dec 15 07:42:29.546 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:29.546 INFO [stderr] 
Dec 15 07:42:29.546 INFO [stderr] warning: bounds on generic parameters are not enforced in type aliases
Dec 15 07:42:29.546 INFO [stderr]   --> src/container.rs:19:34
Dec 15 07:42:29.546 INFO [stderr]    |
Dec 15 07:42:29.546 INFO [stderr] 19 | pub type WriteGuard<'a, T, Base: ?Sized> = downcast::Guard<T, RwLockWriteGuard<'a, Box<Base>>>;
Dec 15 07:42:29.546 INFO [stderr]    |                                  ^^^^^^
Dec 15 07:42:29.546 INFO [stderr]    |
Dec 15 07:42:29.546 INFO [stderr]    = help: the bound will not be checked when the type alias is used, and should be removed
Dec 15 07:42:29.546 INFO [stderr] 
Dec 15 07:42:29.859 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
Dec 15 07:42:29.859 INFO [stderr] su: No module specific data is present
Dec 15 07:42:30.424 INFO running `"docker" "inspect" "0b5087ff5785b2ba0774ded3f0d866831187ff54a7c522b4dfc03ee698e309bd"`
Dec 15 07:42:30.613 INFO running `"docker" "rm" "-f" "0b5087ff5785b2ba0774ded3f0d866831187ff54a7c522b4dfc03ee698e309bd"`
Dec 15 07:42:30.966 INFO [stdout] 0b5087ff5785b2ba0774ded3f0d866831187ff54a7c522b4dfc03ee698e309bd