Dec 05 08:15:26.284 INFO checking rgen3-save-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:15:26.284 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 08:15:26.746 INFO [stdout] 7c0cd91d3eb064d7124b04db0f08c449e06678a800e2dda9ac55fef0b8491ebf
Dec 05 08:15:26.748 INFO running `"docker" "start" "-a" "7c0cd91d3eb064d7124b04db0f08c449e06678a800e2dda9ac55fef0b8491ebf"`
Dec 05 08:15:28.466 INFO [stderr] usermod: no changes
Dec 05 08:15:28.595 INFO [stderr]     Checking rgen3-string v0.1.0
Dec 05 08:15:29.180 INFO [stderr]     Checking rgen3-save v0.1.0 (/source)
Dec 05 08:15:30.495 INFO [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
Dec 05 08:15:30.495 INFO [stderr]  --> src/lib.rs:3:12
Dec 05 08:15:30.495 INFO [stderr]   |
Dec 05 08:15:30.495 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 05 08:15:30.495 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 05 08:15:30.495 INFO [stderr]   |
Dec 05 08:15:30.495 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 08:15:30.495 INFO [stderr] 
Dec 05 08:15:30.495 INFO [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Dec 05 08:15:30.495 INFO [stderr]  --> src/lib.rs:3:31
Dec 05 08:15:30.495 INFO [stderr]   |
Dec 05 08:15:30.495 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 05 08:15:30.495 INFO [stderr]   |                               ^^^^^^^^^^^^^
Dec 05 08:15:30.495 INFO [stderr] 
Dec 05 08:15:30.627 INFO [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
Dec 05 08:15:30.627 INFO [stderr]  --> src/lib.rs:3:12
Dec 05 08:15:30.627 INFO [stderr]   |
Dec 05 08:15:30.627 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 05 08:15:30.627 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 05 08:15:30.627 INFO [stderr]   |
Dec 05 08:15:30.627 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 08:15:30.627 INFO [stderr] 
Dec 05 08:15:30.627 INFO [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Dec 05 08:15:30.627 INFO [stderr]  --> src/lib.rs:3:31
Dec 05 08:15:30.627 INFO [stderr]   |
Dec 05 08:15:30.627 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 05 08:15:30.627 INFO [stderr]   |                               ^^^^^^^^^^^^^
Dec 05 08:15:30.627 INFO [stderr] 
Dec 05 08:15:31.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
Dec 05 08:15:31.957 INFO [stderr] su: No module specific data is present
Dec 05 08:15:32.571 INFO running `"docker" "inspect" "7c0cd91d3eb064d7124b04db0f08c449e06678a800e2dda9ac55fef0b8491ebf"`
Dec 05 08:15:32.872 INFO running `"docker" "rm" "-f" "7c0cd91d3eb064d7124b04db0f08c449e06678a800e2dda9ac55fef0b8491ebf"`
Dec 05 08:15:33.001 INFO [stdout] 7c0cd91d3eb064d7124b04db0f08c449e06678a800e2dda9ac55fef0b8491ebf