Nov 10 01:52:33.756 INFO checking proptest-0.8.7 against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 10 01:52:33.756 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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"`
Nov 10 01:52:34.315 INFO blam! fc0cdd013002b2e32104af88c3cd20b6dc9f3c9e66c21e10f3d63bf54e5fb534
Nov 10 01:52:34.317 INFO running `"docker" "start" "-a" "fc0cdd013002b2e32104af88c3cd20b6dc9f3c9e66c21e10f3d63bf54e5fb534"`
Nov 10 01:52:35.777 INFO kablam! usermod: no changes
Nov 10 01:52:35.947 INFO kablam!     Checking proptest v0.8.7 (/source)
Nov 10 01:52:52.447 INFO kablam! warning: unused `core::result::Result` that must be used
Nov 10 01:52:52.447 INFO kablam!    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 10 01:52:52.447 INFO kablam!     |
Nov 10 01:52:52.447 INFO kablam! 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 10 01:52:52.447 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 10 01:52:52.447 INFO kablam!     |
Nov 10 01:52:52.447 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 10 01:52:52.447 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 10 01:52:52.447 INFO kablam!     = 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 10 01:52:52.447 INFO kablam! 
Nov 10 01:53:05.359 INFO kablam! warning: unused `core::result::Result` that must be used
Nov 10 01:53:05.359 INFO kablam!    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 10 01:53:05.359 INFO kablam!     |
Nov 10 01:53:05.359 INFO kablam! 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 10 01:53:05.359 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 10 01:53:05.359 INFO kablam!     |
Nov 10 01:53:05.359 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 10 01:53:05.359 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 10 01:53:05.359 INFO kablam!     = 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 10 01:53:05.359 INFO kablam! 
Nov 10 01:53:05.872 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 30.07s
Nov 10 01:53:05.891 INFO kablam! su: No module specific data is present
Nov 10 01:53:06.711 INFO running `"docker" "rm" "-f" "fc0cdd013002b2e32104af88c3cd20b6dc9f3c9e66c21e10f3d63bf54e5fb534"`
Nov 10 01:53:07.043 INFO blam! fc0cdd013002b2e32104af88c3cd20b6dc9f3c9e66c21e10f3d63bf54e5fb534