Dec 02 21:50:43.413 INFO testing proptest-0.8.7 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 21:50:43.414 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 21:50:43.652 INFO [stdout] 5a4348ee7bd7f2182ae577eb5b728777f6138525f2e452a33104909cfc36fed9
Dec 02 21:50:43.655 INFO running `"docker" "start" "-a" "5a4348ee7bd7f2182ae577eb5b728777f6138525f2e452a33104909cfc36fed9"`
Dec 02 21:50:44.079 INFO [stderr] usermod: no changes
Dec 02 21:50:44.190 INFO [stderr]    Compiling wait-timeout v0.1.5
Dec 02 21:50:44.190 INFO [stderr]    Compiling rand v0.5.5
Dec 02 21:50:46.052 INFO [stderr]    Compiling rusty-fork v0.2.1
Dec 02 21:50:49.895 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Dec 02 21:51:00.499 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 02 21:51:00.499 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Dec 02 21:51:00.499 INFO [stderr]     |
Dec 02 21:51:00.499 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Dec 02 21:51:00.499 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:51:00.499 INFO [stderr]     |
Dec 02 21:51:00.499 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 02 21:51:00.499 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 21:51:00.499 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)
Dec 02 21:51:00.499 INFO [stderr] 
Dec 02 21:51:09.799 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.69s
Dec 02 21:51:09.806 INFO [stderr] su: No module specific data is present
Dec 02 21:51:10.652 INFO running `"docker" "inspect" "5a4348ee7bd7f2182ae577eb5b728777f6138525f2e452a33104909cfc36fed9"`
Dec 02 21:51:10.951 INFO running `"docker" "rm" "-f" "5a4348ee7bd7f2182ae577eb5b728777f6138525f2e452a33104909cfc36fed9"`
Dec 02 21:51:11.295 INFO [stdout] 5a4348ee7bd7f2182ae577eb5b728777f6138525f2e452a33104909cfc36fed9
Dec 02 21:51:11.297 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 21:51:11.766 INFO [stdout] 66d8bb4500e5b65f96df8e3791cd8ebfe645ee646c84a280cdb905af2a1d2528
Dec 02 21:51:11.768 INFO running `"docker" "start" "-a" "66d8bb4500e5b65f96df8e3791cd8ebfe645ee646c84a280cdb905af2a1d2528"`
Dec 02 21:51:14.179 INFO [stderr] usermod: no changes
Dec 02 21:51:14.303 INFO [stderr]    Compiling proptest v0.8.7 (/source)
Dec 02 21:51:46.779 INFO [stderr] warning: unused `core::result::Result` that must be used
Dec 02 21:51:46.780 INFO [stderr]    --> src/test_runner/failure_persistence/file.rs:308:5
Dec 02 21:51:46.780 INFO [stderr]     |
Dec 02 21:51:46.780 INFO [stderr] 308 |     write!(buf, "{}", format_basic_seed_line(seed));
Dec 02 21:51:46.781 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:51:46.781 INFO [stderr]     |
Dec 02 21:51:46.781 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 02 21:51:46.782 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 21:51:46.782 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)
Dec 02 21:51:46.782 INFO [stderr] 
Dec 02 21:52:52.944 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
Dec 02 21:52:52.957 INFO [stderr] su: No module specific data is present
Dec 02 21:52:53.321 INFO running `"docker" "inspect" "66d8bb4500e5b65f96df8e3791cd8ebfe645ee646c84a280cdb905af2a1d2528"`
Dec 02 21:52:53.487 INFO running `"docker" "rm" "-f" "66d8bb4500e5b65f96df8e3791cd8ebfe645ee646c84a280cdb905af2a1d2528"`
Dec 02 21:52:53.608 INFO [stdout] 66d8bb4500e5b65f96df8e3791cd8ebfe645ee646c84a280cdb905af2a1d2528
