Dec 06 07:46:39.348 INFO testing agilestacks/object-spam against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 07:46:39.348 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 07:46:39.711 INFO [stdout] 5da2f6194af199c48b7ca37fce7c62bff94603cae840a943706bf1b8a8009a94
Dec 06 07:46:39.713 INFO running `"docker" "start" "-a" "5da2f6194af199c48b7ca37fce7c62bff94603cae840a943706bf1b8a8009a94"`
Dec 06 07:46:41.252 INFO [stderr] usermod: no changes
Dec 06 07:46:41.776 INFO [stderr]    Compiling human-size v0.4.0
Dec 06 07:46:41.776 INFO [stderr]    Compiling quantiles v0.7.1
Dec 06 07:46:41.781 INFO [stderr]    Compiling crossbeam-epoch v0.6.1
Dec 06 07:46:44.155 INFO [stderr]    Compiling crossbeam-deque v0.6.2
Dec 06 07:46:45.013 INFO [stderr]    Compiling tokio-threadpool v0.1.8
Dec 06 07:46:47.778 INFO [stderr]    Compiling tokio-fs v0.1.4
Dec 06 07:46:49.898 INFO [stderr]    Compiling tokio v0.1.11
Dec 06 07:46:52.794 INFO [stderr]    Compiling hyper v0.12.14
Dec 06 07:47:01.491 INFO [stderr]    Compiling rusoto_credential v0.14.0
Dec 06 07:47:01.491 INFO [stderr]    Compiling hyper-tls v0.3.1
Dec 06 07:47:09.934 INFO [stderr]    Compiling rusoto_core v0.35.0
Dec 06 07:47:20.321 INFO [stderr]    Compiling rusoto_s3 v0.35.0
Dec 06 07:47:41.491 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 06 07:47:46.197 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.201 INFO [stderr]   --> src/stats.rs:71:9
Dec 06 07:47:46.201 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:72:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:73:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:74:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:75:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:76:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:77:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:78:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:79:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.202 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 06 07:47:46.202 INFO [stderr] 
Dec 06 07:47:46.202 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:46.202 INFO [stderr]   --> src/stats.rs:80:9
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 06 07:47:46.202 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:46.202 INFO [stderr]    |
Dec 06 07:47:46.202 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:46.203 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 06 07:47:46.203 INFO [stderr] 
Dec 06 07:47:54.256 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
Dec 06 07:47:54.264 INFO [stderr] su: No module specific data is present
Dec 06 07:47:54.785 INFO running `"docker" "inspect" "5da2f6194af199c48b7ca37fce7c62bff94603cae840a943706bf1b8a8009a94"`
Dec 06 07:47:54.964 INFO running `"docker" "rm" "-f" "5da2f6194af199c48b7ca37fce7c62bff94603cae840a943706bf1b8a8009a94"`
Dec 06 07:47:55.120 INFO [stdout] 5da2f6194af199c48b7ca37fce7c62bff94603cae840a943706bf1b8a8009a94
Dec 06 07:47:55.126 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 07:47:55.412 INFO [stdout] 461354e86dc53a1dd2386fcf8d6511201128ef6a1c125b11594aba022cd50fc5
Dec 06 07:47:55.418 INFO running `"docker" "start" "-a" "461354e86dc53a1dd2386fcf8d6511201128ef6a1c125b11594aba022cd50fc5"`
Dec 06 07:47:56.114 INFO [stderr] usermod: no changes
Dec 06 07:47:56.421 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:71:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:72:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:73:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:74:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:75:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:76:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.034 INFO [stderr]   --> src/stats.rs:77:9
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 06 07:48:02.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.034 INFO [stderr]    |
Dec 06 07:48:02.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.034 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 06 07:48:02.034 INFO [stderr] 
Dec 06 07:48:02.035 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.035 INFO [stderr]   --> src/stats.rs:78:9
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 06 07:48:02.035 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.035 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 06 07:48:02.035 INFO [stderr] 
Dec 06 07:48:02.035 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.035 INFO [stderr]   --> src/stats.rs:79:9
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 06 07:48:02.035 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.035 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 06 07:48:02.035 INFO [stderr] 
Dec 06 07:48:02.035 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:48:02.035 INFO [stderr]   --> src/stats.rs:80:9
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 06 07:48:02.035 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:48:02.035 INFO [stderr]    |
Dec 06 07:48:02.035 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:48:02.035 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 06 07:48:02.035 INFO [stderr] 
Dec 06 07:48:02.830 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.67s
Dec 06 07:48:02.852 INFO [stderr] su: No module specific data is present
Dec 06 07:48:03.352 INFO running `"docker" "inspect" "461354e86dc53a1dd2386fcf8d6511201128ef6a1c125b11594aba022cd50fc5"`
Dec 06 07:48:03.666 INFO running `"docker" "rm" "-f" "461354e86dc53a1dd2386fcf8d6511201128ef6a1c125b11594aba022cd50fc5"`
Dec 06 07:48:03.997 INFO [stdout] 461354e86dc53a1dd2386fcf8d6511201128ef6a1c125b11594aba022cd50fc5
Dec 06 07:48:04.002 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --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"`
Dec 06 07:48:04.425 INFO [stdout] 2e91ba07e04c9903abdeb0740913d5d9b6ff826ebf313cf2811893e061c271d8
Dec 06 07:48:04.430 INFO running `"docker" "start" "-a" "2e91ba07e04c9903abdeb0740913d5d9b6ff826ebf313cf2811893e061c271d8"`
Dec 06 07:48:05.441 INFO [stderr] usermod: no changes
Dec 06 07:48:05.668 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
Dec 06 07:48:05.677 INFO [stderr]      Running /target/debug/deps/object_spam-b99b6f621df8bfd0
Dec 06 07:48:05.686 INFO [stdout] 
Dec 06 07:48:05.686 INFO [stdout] running 0 tests
Dec 06 07:48:05.686 INFO [stdout] 
Dec 06 07:48:05.686 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 07:48:05.686 INFO [stdout] 
Dec 06 07:48:05.689 INFO [stderr] su: No module specific data is present
Dec 06 07:48:06.598 INFO running `"docker" "inspect" "2e91ba07e04c9903abdeb0740913d5d9b6ff826ebf313cf2811893e061c271d8"`
Dec 06 07:48:06.930 INFO running `"docker" "rm" "-f" "2e91ba07e04c9903abdeb0740913d5d9b6ff826ebf313cf2811893e061c271d8"`
Dec 06 07:48:07.208 INFO [stdout] 2e91ba07e04c9903abdeb0740913d5d9b6ff826ebf313cf2811893e061c271d8