Dec 12 09:07:24.017 INFO checking rgen3-save-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 09:07:24.017 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 09:07:24.504 INFO [stdout] eb98f3db127e2120635f6df9033171b744fb593a43df25cb77f923b56e47eeeb
Dec 12 09:07:24.512 INFO running `"docker" "start" "-a" "eb98f3db127e2120635f6df9033171b744fb593a43df25cb77f923b56e47eeeb"`
Dec 12 09:07:25.669 INFO [stderr] usermod: no changes
Dec 12 09:07:25.812 INFO [stderr]     Checking rgen3-string v0.1.0
Dec 12 09:07:26.372 INFO [stderr]     Checking rgen3-save v0.1.0 (/source)
Dec 12 09:07:27.904 INFO [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
Dec 12 09:07:27.904 INFO [stderr]  --> src/lib.rs:3:12
Dec 12 09:07:27.904 INFO [stderr]   |
Dec 12 09:07:27.904 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 12 09:07:27.904 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 12 09:07:27.904 INFO [stderr]   |
Dec 12 09:07:27.904 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 09:07:27.904 INFO [stderr] 
Dec 12 09:07:27.904 INFO [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Dec 12 09:07:27.904 INFO [stderr]  --> src/lib.rs:3:31
Dec 12 09:07:27.904 INFO [stderr]   |
Dec 12 09:07:27.904 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 12 09:07:27.904 INFO [stderr]   |                               ^^^^^^^^^^^^^
Dec 12 09:07:27.904 INFO [stderr] 
Dec 12 09:07:28.100 INFO [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
Dec 12 09:07:28.100 INFO [stderr]  --> src/lib.rs:3:12
Dec 12 09:07:28.100 INFO [stderr]   |
Dec 12 09:07:28.100 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 12 09:07:28.100 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 12 09:07:28.100 INFO [stderr]   |
Dec 12 09:07:28.100 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 12 09:07:28.100 INFO [stderr] 
Dec 12 09:07:28.101 INFO [stderr] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
Dec 12 09:07:28.101 INFO [stderr]  --> src/lib.rs:3:31
Dec 12 09:07:28.101 INFO [stderr]   |
Dec 12 09:07:28.101 INFO [stderr] 3 | #![feature(associated_consts, question_mark)]
Dec 12 09:07:28.101 INFO [stderr]   |                               ^^^^^^^^^^^^^
Dec 12 09:07:28.101 INFO [stderr] 
Dec 12 09:07:29.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.81s
Dec 12 09:07:29.519 INFO [stderr] su: No module specific data is present
Dec 12 09:07:29.944 INFO running `"docker" "inspect" "eb98f3db127e2120635f6df9033171b744fb593a43df25cb77f923b56e47eeeb"`
Dec 12 09:07:30.142 INFO running `"docker" "rm" "-f" "eb98f3db127e2120635f6df9033171b744fb593a43df25cb77f923b56e47eeeb"`
Dec 12 09:07:30.260 INFO [stdout] eb98f3db127e2120635f6df9033171b744fb593a43df25cb77f923b56e47eeeb