Nov 18 03:08:58.644 INFO testing proptest-0.8.7 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 03:08:58.645 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-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"`
Nov 18 03:08:59.091 INFO [stdout] a22297e9fd816268ccabc65bbfac62ecd5ea3144edd4b69bd4649f628b7cde30
Nov 18 03:08:59.095 INFO running `"docker" "start" "-a" "a22297e9fd816268ccabc65bbfac62ecd5ea3144edd4b69bd4649f628b7cde30"`
Nov 18 03:09:01.186 INFO [stderr] usermod: no changes
Nov 18 03:09:01.399 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Nov 18 03:09:11.290 INFO [stderr] warning: unused `core::result::Result` that must be used
Nov 18 03:09:11.291 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 18 03:09:11.291 INFO [stderr]     |
Nov 18 03:09:11.291 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 18 03:09:11.291 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 03:09:11.292 INFO [stderr]     |
Nov 18 03:09:11.292 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 18 03:09:11.292 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 03:09:11.293 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 18 03:09:11.293 INFO [stderr] 
Nov 18 03:09:20.139 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.92s
Nov 18 03:09:20.144 INFO [stderr] su: No module specific data is present
Nov 18 03:09:20.912 INFO running `"docker" "inspect" "a22297e9fd816268ccabc65bbfac62ecd5ea3144edd4b69bd4649f628b7cde30"`
Nov 18 03:09:21.109 INFO running `"docker" "rm" "-f" "a22297e9fd816268ccabc65bbfac62ecd5ea3144edd4b69bd4649f628b7cde30"`
Nov 18 03:09:21.563 INFO [stdout] a22297e9fd816268ccabc65bbfac62ecd5ea3144edd4b69bd4649f628b7cde30
Nov 18 03:09:21.569 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-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"`
Nov 18 03:09:22.002 INFO [stdout] 2dc50f84f4d429ec2e03be32b6d062ee9afa69e40a3e08dbe6b4c17567ece65e
Nov 18 03:09:22.005 INFO running `"docker" "start" "-a" "2dc50f84f4d429ec2e03be32b6d062ee9afa69e40a3e08dbe6b4c17567ece65e"`
Nov 18 03:09:22.591 INFO [stderr] usermod: no changes
Nov 18 03:09:22.676 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Nov 18 03:09:49.079 INFO [stderr] warning: unused `core::result::Result` that must be used
Nov 18 03:09:49.079 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 18 03:09:49.079 INFO [stderr]     |
Nov 18 03:09:49.079 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 18 03:09:49.079 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 03:09:49.079 INFO [stderr]     |
Nov 18 03:09:49.079 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 18 03:09:49.079 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 03:09:49.079 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 18 03:09:49.079 INFO [stderr] 
Nov 18 03:11:00.591 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
Nov 18 03:11:00.603 INFO [stderr] su: No module specific data is present
Nov 18 03:11:00.835 INFO running `"docker" "inspect" "2dc50f84f4d429ec2e03be32b6d062ee9afa69e40a3e08dbe6b4c17567ece65e"`
Nov 18 03:11:00.912 INFO running `"docker" "rm" "-f" "2dc50f84f4d429ec2e03be32b6d062ee9afa69e40a3e08dbe6b4c17567ece65e"`
Nov 18 03:11:00.989 INFO [stdout] 2dc50f84f4d429ec2e03be32b6d062ee9afa69e40a3e08dbe6b4c17567ece65e