Dec 12 11:39:10.477 INFO checking marksman_escape-0.1.2 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 11:39:10.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11:39:10.890 INFO [stdout] 585ab2945ec4c46ec2cde841f4f4efad8c824c5b7e4aec73bcb087441451a1c7
Dec 12 11:39:10.892 INFO running `"docker" "start" "-a" "585ab2945ec4c46ec2cde841f4f4efad8c824c5b7e4aec73bcb087441451a1c7"`
Dec 12 11:39:12.012 INFO [stderr] usermod: no changes
Dec 12 11:39:12.040 INFO [stderr]     Checking marksman_escape v0.1.2 (/source)
Dec 12 11:39:24.567 INFO [stderr] error[E0432]: unresolved import `std::str::StrExt`
Dec 12 11:39:24.567 INFO [stderr]  --> benches/escape.rs:7:5
Dec 12 11:39:24.567 INFO [stderr]   |
Dec 12 11:39:24.567 INFO [stderr] 7 | use std::str::StrExt;
Dec 12 11:39:24.567 INFO [stderr]   |     ^^^^^^^^^^^^^^^^ no `StrExt` in `str`
Dec 12 11:39:24.567 INFO [stderr] 
Dec 12 11:39:24.567 INFO [stderr] warning: unused import: `std::str::StrExt`
Dec 12 11:39:24.567 INFO [stderr]  --> benches/escape.rs:7:5
Dec 12 11:39:24.567 INFO [stderr]   |
Dec 12 11:39:24.567 INFO [stderr] 7 | use std::str::StrExt;
Dec 12 11:39:24.567 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 12 11:39:24.567 INFO [stderr]   |
Dec 12 11:39:24.567 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:39:24.567 INFO [stderr] 
Dec 12 11:39:24.700 INFO [stderr] error: aborting due to previous error
Dec 12 11:39:24.700 INFO [stderr] 
Dec 12 11:39:24.700 INFO [stderr] For more information about this error, try `rustc --explain E0432`.
Dec 12 11:39:24.723 INFO [stderr] error: Could not compile `marksman_escape`.
Dec 12 11:39:24.723 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 12 11:39:24.868 INFO [stderr] error[E0432]: unresolved import `std::str::StrExt`
Dec 12 11:39:24.868 INFO [stderr]  --> benches/unescape.rs:7:5
Dec 12 11:39:24.868 INFO [stderr]   |
Dec 12 11:39:24.868 INFO [stderr] 7 | use std::str::StrExt;
Dec 12 11:39:24.868 INFO [stderr]   |     ^^^^^^^^^^^^^^^^ no `StrExt` in `str`
Dec 12 11:39:24.868 INFO [stderr] 
Dec 12 11:39:24.868 INFO [stderr] warning: unused import: `std::str::StrExt`
Dec 12 11:39:24.868 INFO [stderr]  --> benches/unescape.rs:7:5
Dec 12 11:39:24.868 INFO [stderr]   |
Dec 12 11:39:24.868 INFO [stderr] 7 | use std::str::StrExt;
Dec 12 11:39:24.868 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 12 11:39:24.869 INFO [stderr]   |
Dec 12 11:39:24.869 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:39:24.869 INFO [stderr] 
Dec 12 11:39:24.916 INFO [stderr] error: aborting due to previous error
Dec 12 11:39:24.916 INFO [stderr] 
Dec 12 11:39:24.920 INFO [stderr] For more information about this error, try `rustc --explain E0432`.
Dec 12 11:39:24.936 INFO [stderr] error: Could not compile `marksman_escape`.
Dec 12 11:39:24.936 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 12 11:39:25.788 INFO [stderr] error: build failed
Dec 12 11:39:25.804 INFO [stderr] su: No module specific data is present
Dec 12 11:39:26.089 INFO running `"docker" "inspect" "585ab2945ec4c46ec2cde841f4f4efad8c824c5b7e4aec73bcb087441451a1c7"`
Dec 12 11:39:26.186 INFO running `"docker" "rm" "-f" "585ab2945ec4c46ec2cde841f4f4efad8c824c5b7e4aec73bcb087441451a1c7"`
Dec 12 11:39:26.281 INFO [stdout] 585ab2945ec4c46ec2cde841f4f4efad8c824c5b7e4aec73bcb087441451a1c7