Nov 07 10:44:16.957 INFO checking proptest-0.8.7 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 10:44:16.959 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-3/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 07 10:44:17.445 INFO blam! 6d71be943419ce1502dc3d676b76879b07efd5fdd29e1900d8c2ac858f2fe003
Nov 07 10:44:17.460 INFO running `"docker" "start" "-a" "6d71be943419ce1502dc3d676b76879b07efd5fdd29e1900d8c2ac858f2fe003"`
Nov 07 10:44:18.992 INFO kablam! usermod: no changes
Nov 07 10:44:19.153 INFO kablam!     Checking bit-set v0.5.0
Nov 07 10:44:19.160 INFO kablam!     Checking rand v0.5.5
Nov 07 10:44:22.478 INFO kablam!     Checking tempfile v3.0.4
Nov 07 10:44:23.375 INFO kablam!     Checking rusty-fork v0.2.1
Nov 07 10:44:24.558 INFO kablam!     Checking proptest v0.8.7 (/source)
Nov 07 10:44:38.896 INFO kablam! warning: unused `core::result::Result` that must be used
Nov 07 10:44:38.896 INFO kablam!    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 07 10:44:38.896 INFO kablam!     |
Nov 07 10:44:38.896 INFO kablam! 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 07 10:44:38.896 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 10:44:38.896 INFO kablam!     |
Nov 07 10:44:38.896 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 07 10:44:38.896 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 10:44:38.896 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 07 10:44:38.896 INFO kablam! 
Nov 07 10:44:50.438 INFO kablam! warning: unused `core::result::Result` that must be used
Nov 07 10:44:50.438 INFO kablam!    --> src/test_runner/failure_persistence/file.rs:308:5
Nov 07 10:44:50.438 INFO kablam!     |
Nov 07 10:44:50.438 INFO kablam! 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Nov 07 10:44:50.438 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 10:44:50.438 INFO kablam!     |
Nov 07 10:44:50.438 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 07 10:44:50.438 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 07 10:44:50.438 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 07 10:44:50.438 INFO kablam! 
Nov 07 10:44:50.948 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 31.92s
Nov 07 10:44:50.965 INFO kablam! su: No module specific data is present
Nov 07 10:44:51.534 INFO running `"docker" "rm" "-f" "6d71be943419ce1502dc3d676b76879b07efd5fdd29e1900d8c2ac858f2fe003"`
Nov 07 10:44:51.679 INFO blam! 6d71be943419ce1502dc3d676b76879b07efd5fdd29e1900d8c2ac858f2fe003