Dec 12 07:24:03.761 INFO checking slog-html-0.1.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 07:24:03.761 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 07:24:04.014 INFO [stdout] 6ae44d0aa4d5bd8ea670523a25618c747e3333d2d7e64d28887592e81e072a42
Dec 12 07:24:04.020 INFO running `"docker" "start" "-a" "6ae44d0aa4d5bd8ea670523a25618c747e3333d2d7e64d28887592e81e072a42"`
Dec 12 07:24:05.168 INFO [stderr] usermod: no changes
Dec 12 07:24:05.296 INFO [stderr]     Checking slog-html v0.1.3 (/source)
Dec 12 07:24:06.300 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 07:24:06.300 INFO [stderr]   --> src/lib.rs:84:1
Dec 12 07:24:06.300 INFO [stderr]    |
Dec 12 07:24:06.300 INFO [stderr] 84 | #[macro_use]
Dec 12 07:24:06.300 INFO [stderr]    | ^^^^^^^^^^^^
Dec 12 07:24:06.300 INFO [stderr]    |
Dec 12 07:24:06.300 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 07:24:06.300 INFO [stderr] 
Dec 12 07:24:06.389 INFO [stderr] warning: use of deprecated item 'slog::OwnedKeyValueList::parent': &Option<...> is a stupid type to return. Use `get_parent` for now.
Dec 12 07:24:06.389 INFO [stderr]    --> src/lib.rs:246:54
Dec 12 07:24:06.389 INFO [stderr]     |
Dec 12 07:24:06.389 INFO [stderr] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
Dec 12 07:24:06.389 INFO [stderr]     |                                                      ^^^^^^
Dec 12 07:24:06.389 INFO [stderr]     |
Dec 12 07:24:06.389 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 12 07:24:06.389 INFO [stderr] 
Dec 12 07:24:06.516 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:24:06.516 INFO [stderr]    --> src/lib.rs:160:14
Dec 12 07:24:06.516 INFO [stderr]     |
Dec 12 07:24:06.516 INFO [stderr] 160 |         let (mut io, _) = serializer.finish();
Dec 12 07:24:06.516 INFO [stderr]     |              ----^^
Dec 12 07:24:06.516 INFO [stderr]     |              |
Dec 12 07:24:06.516 INFO [stderr]     |              help: remove this `mut`
Dec 12 07:24:06.516 INFO [stderr]     |
Dec 12 07:24:06.516 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:24:06.516 INFO [stderr] 
Dec 12 07:24:06.524 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:24:06.524 INFO [stderr]    --> src/lib.rs:209:14
Dec 12 07:24:06.524 INFO [stderr]     |
Dec 12 07:24:06.524 INFO [stderr] 209 |         let (mut io, _) = serializer.finish();
Dec 12 07:24:06.524 INFO [stderr]     |              ----^^
Dec 12 07:24:06.524 INFO [stderr]     |              |
Dec 12 07:24:06.524 INFO [stderr]     |              help: remove this `mut`
Dec 12 07:24:06.524 INFO [stderr] 
Dec 12 07:24:06.640 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 07:24:06.640 INFO [stderr]   --> src/lib.rs:84:1
Dec 12 07:24:06.640 INFO [stderr]    |
Dec 12 07:24:06.640 INFO [stderr] 84 | #[macro_use]
Dec 12 07:24:06.640 INFO [stderr]    | ^^^^^^^^^^^^
Dec 12 07:24:06.640 INFO [stderr]    |
Dec 12 07:24:06.640 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 07:24:06.640 INFO [stderr] 
Dec 12 07:24:06.732 INFO [stderr] warning: use of deprecated item 'slog::OwnedKeyValueList::parent': &Option<...> is a stupid type to return. Use `get_parent` for now.
Dec 12 07:24:06.732 INFO [stderr]    --> src/lib.rs:246:54
Dec 12 07:24:06.732 INFO [stderr]     |
Dec 12 07:24:06.732 INFO [stderr] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
Dec 12 07:24:06.732 INFO [stderr]     |                                                      ^^^^^^
Dec 12 07:24:06.732 INFO [stderr]     |
Dec 12 07:24:06.732 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 12 07:24:06.732 INFO [stderr] 
Dec 12 07:24:06.872 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:24:06.872 INFO [stderr]    --> src/lib.rs:160:14
Dec 12 07:24:06.872 INFO [stderr]     |
Dec 12 07:24:06.872 INFO [stderr] 160 |         let (mut io, _) = serializer.finish();
Dec 12 07:24:06.872 INFO [stderr]     |              ----^^
Dec 12 07:24:06.872 INFO [stderr]     |              |
Dec 12 07:24:06.872 INFO [stderr]     |              help: remove this `mut`
Dec 12 07:24:06.872 INFO [stderr]     |
Dec 12 07:24:06.872 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 07:24:06.872 INFO [stderr] 
Dec 12 07:24:06.876 INFO [stderr] warning: variable does not need to be mutable
Dec 12 07:24:06.876 INFO [stderr]    --> src/lib.rs:209:14
Dec 12 07:24:06.876 INFO [stderr]     |
Dec 12 07:24:06.876 INFO [stderr] 209 |         let (mut io, _) = serializer.finish();
Dec 12 07:24:06.876 INFO [stderr]     |              ----^^
Dec 12 07:24:06.876 INFO [stderr]     |              |
Dec 12 07:24:06.876 INFO [stderr]     |              help: remove this `mut`
Dec 12 07:24:06.876 INFO [stderr] 
Dec 12 07:24:08.420 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.19s
Dec 12 07:24:08.420 INFO [stderr] su: No module specific data is present
Dec 12 07:24:08.930 INFO running `"docker" "inspect" "6ae44d0aa4d5bd8ea670523a25618c747e3333d2d7e64d28887592e81e072a42"`
Dec 12 07:24:09.088 INFO running `"docker" "rm" "-f" "6ae44d0aa4d5bd8ea670523a25618c747e3333d2d7e64d28887592e81e072a42"`
Dec 12 07:24:09.280 INFO [stdout] 6ae44d0aa4d5bd8ea670523a25618c747e3333d2d7e64d28887592e81e072a42