Dec 12 11:11:22.633 INFO checking must-0.2.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:11:22.633 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 11:11:22.901 INFO [stdout] 8c1c52868af7a8efecbdd6ee3bf07e4312e1cc7144f9d24e31f1f19912cb39eb
Dec 12 11:11:22.903 INFO running `"docker" "start" "-a" "8c1c52868af7a8efecbdd6ee3bf07e4312e1cc7144f9d24e31f1f19912cb39eb"`
Dec 12 11:11:23.384 INFO [stderr] usermod: no changes
Dec 12 11:11:23.457 INFO [stderr]     Checking mutator v0.1.0
Dec 12 11:11:23.948 INFO [stderr]     Checking must v0.2.0 (/source)
Dec 12 11:11:25.296 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.296 INFO [stderr]  --> src/matchers/text.rs:4:5
Dec 12 11:11:25.296 INFO [stderr]   |
Dec 12 11:11:25.296 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 11:11:25.296 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 11:11:25.296 INFO [stderr]   |
Dec 12 11:11:25.296 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 12 11:11:25.296 INFO [stderr] 
Dec 12 11:11:25.296 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.296 INFO [stderr]   --> src/matchers/text.rs:58:40
Dec 12 11:11:25.296 INFO [stderr]    |
Dec 12 11:11:25.296 INFO [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
Dec 12 11:11:25.296 INFO [stderr]    |                                        ^^^^^^^^
Dec 12 11:11:25.296 INFO [stderr] 
Dec 12 11:11:25.296 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.296 INFO [stderr]   --> src/matchers/text.rs:76:44
Dec 12 11:11:25.296 INFO [stderr]    |
Dec 12 11:11:25.296 INFO [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
Dec 12 11:11:25.296 INFO [stderr]    |                                            ^^^^^^^^
Dec 12 11:11:25.296 INFO [stderr] 
Dec 12 11:11:25.536 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.536 INFO [stderr]  --> src/matchers/text.rs:4:5
Dec 12 11:11:25.536 INFO [stderr]   |
Dec 12 11:11:25.536 INFO [stderr] 4 | use std::ascii::AsciiExt;
Dec 12 11:11:25.536 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 12 11:11:25.552 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt::is_ascii': use inherent methods instead
Dec 12 11:11:25.552 INFO [stderr]   --> src/matchers/text.rs:60:11
Dec 12 11:11:25.552 INFO [stderr]    |
Dec 12 11:11:25.552 INFO [stderr] 60 |         if self.is_ascii() {
Dec 12 11:11:25.552 INFO [stderr]    |                 ^^^^^^^^
Dec 12 11:11:25.552 INFO [stderr]   |
Dec 12 11:11:25.552 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 12 11:11:25.552 INFO [stderr] 
Dec 12 11:11:25.552 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.552 INFO [stderr]   --> src/matchers/text.rs:58:40
Dec 12 11:11:25.552 INFO [stderr]    |
Dec 12 11:11:25.552 INFO [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
Dec 12 11:11:25.552 INFO [stderr]    |                                        ^^^^^^^^
Dec 12 11:11:25.552 INFO [stderr] 
Dec 12 11:11:25.552 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 12 11:11:25.552 INFO [stderr]   --> src/matchers/text.rs:76:44
Dec 12 11:11:25.553 INFO [stderr]    |
Dec 12 11:11:25.553 INFO [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
Dec 12 11:11:25.553 INFO [stderr]    |                                            ^^^^^^^^
Dec 12 11:11:25.553 INFO [stderr] 
Dec 12 11:11:25.568 INFO [stderr] 
Dec 12 11:11:25.568 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt::eq_ignore_ascii_case': use inherent methods instead
Dec 12 11:11:25.568 INFO [stderr]   --> src/matchers/text.rs:68:11
Dec 12 11:11:25.568 INFO [stderr]    |
Dec 12 11:11:25.568 INFO [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
Dec 12 11:11:25.568 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
Dec 12 11:11:25.568 INFO [stderr] 
Dec 12 11:11:25.920 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt::is_ascii': use inherent methods instead
Dec 12 11:11:25.920 INFO [stderr]   --> src/matchers/text.rs:60:11
Dec 12 11:11:25.921 INFO [stderr]    |
Dec 12 11:11:25.921 INFO [stderr] 60 |         if self.is_ascii() {
Dec 12 11:11:25.921 INFO [stderr]    |                 ^^^^^^^^
Dec 12 11:11:25.936 INFO [stderr] 
Dec 12 11:11:25.937 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt::eq_ignore_ascii_case': use inherent methods instead
Dec 12 11:11:25.938 INFO [stderr]   --> src/matchers/text.rs:68:11
Dec 12 11:11:25.938 INFO [stderr]    |
Dec 12 11:11:25.938 INFO [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
Dec 12 11:11:25.938 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
Dec 12 11:11:25.938 INFO [stderr] 
Dec 12 11:11:27.573 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
Dec 12 11:11:27.585 INFO [stderr] su: No module specific data is present
Dec 12 11:11:28.076 INFO running `"docker" "inspect" "8c1c52868af7a8efecbdd6ee3bf07e4312e1cc7144f9d24e31f1f19912cb39eb"`
Dec 12 11:11:28.300 INFO running `"docker" "rm" "-f" "8c1c52868af7a8efecbdd6ee3bf07e4312e1cc7144f9d24e31f1f19912cb39eb"`
Dec 12 11:11:28.438 INFO [stdout] 8c1c52868af7a8efecbdd6ee3bf07e4312e1cc7144f9d24e31f1f19912cb39eb