Dec 14 03:48:57.441 INFO testing agilestacks/object-spam against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 03:48:57.441 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 03:48:57.991 INFO [stdout] c68a70632dd86c2723344d85fd4a6826097c5ca4ff6750f1c71ffe7401be9ca8
Dec 14 03:48:57.999 INFO running `"docker" "start" "-a" "c68a70632dd86c2723344d85fd4a6826097c5ca4ff6750f1c71ffe7401be9ca8"`
Dec 14 03:48:59.955 INFO [stderr] usermod: no changes
Dec 14 03:49:00.534 INFO [stderr]    Compiling quantiles v0.7.1
Dec 14 03:49:00.534 INFO [stderr]    Compiling human-size v0.4.0
Dec 14 03:49:00.575 INFO [stderr]    Compiling crossbeam-epoch v0.6.1
Dec 14 03:49:03.631 INFO [stderr]    Compiling crossbeam-deque v0.6.2
Dec 14 03:49:04.751 INFO [stderr]    Compiling tokio-threadpool v0.1.8
Dec 14 03:49:08.647 INFO [stderr]    Compiling tokio-fs v0.1.4
Dec 14 03:49:11.358 INFO [stderr]    Compiling tokio v0.1.11
Dec 14 03:49:15.702 INFO [stderr]    Compiling hyper v0.12.14
Dec 14 03:49:25.487 INFO [stderr]    Compiling rusoto_credential v0.14.0
Dec 14 03:49:25.487 INFO [stderr]    Compiling hyper-tls v0.3.1
Dec 14 03:49:37.228 INFO [stderr]    Compiling rusoto_core v0.35.0
Dec 14 03:49:51.728 INFO [stderr]    Compiling rusoto_s3 v0.35.0
Dec 14 03:50:16.277 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:71:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:72:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:73:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:74:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:75:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:76:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:77:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:78:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:79:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 14 03:50:21.611 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.611 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 14 03:50:21.611 INFO [stderr] 
Dec 14 03:50:21.611 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:21.611 INFO [stderr]   --> src/stats.rs:80:9
Dec 14 03:50:21.611 INFO [stderr]    |
Dec 14 03:50:21.611 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 14 03:50:21.612 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:21.612 INFO [stderr]    |
Dec 14 03:50:21.612 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:21.612 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 14 03:50:21.612 INFO [stderr] 
Dec 14 03:50:29.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
Dec 14 03:50:29.283 INFO [stderr] su: No module specific data is present
Dec 14 03:50:30.143 INFO running `"docker" "inspect" "c68a70632dd86c2723344d85fd4a6826097c5ca4ff6750f1c71ffe7401be9ca8"`
Dec 14 03:50:30.519 INFO running `"docker" "rm" "-f" "c68a70632dd86c2723344d85fd4a6826097c5ca4ff6750f1c71ffe7401be9ca8"`
Dec 14 03:50:30.899 INFO [stdout] c68a70632dd86c2723344d85fd4a6826097c5ca4ff6750f1c71ffe7401be9ca8
Dec 14 03:50:30.904 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 03:50:31.402 INFO [stdout] 8c1247a10d3bc0c0d2c3786d1b5448049f412ea0f9eba07eacb475553ce63c5c
Dec 14 03:50:31.404 INFO running `"docker" "start" "-a" "8c1247a10d3bc0c0d2c3786d1b5448049f412ea0f9eba07eacb475553ce63c5c"`
Dec 14 03:50:33.551 INFO [stderr] usermod: no changes
Dec 14 03:50:33.858 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 14 03:50:39.449 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.449 INFO [stderr]   --> src/stats.rs:71:9
Dec 14 03:50:39.449 INFO [stderr]    |
Dec 14 03:50:39.449 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 14 03:50:39.449 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.449 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:72:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 14 03:50:39.450 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:73:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 14 03:50:39.450 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:74:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 14 03:50:39.450 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:75:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 14 03:50:39.450 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:76:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 14 03:50:39.450 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.450 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 14 03:50:39.450 INFO [stderr] 
Dec 14 03:50:39.450 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.450 INFO [stderr]   --> src/stats.rs:77:9
Dec 14 03:50:39.450 INFO [stderr]    |
Dec 14 03:50:39.450 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 14 03:50:39.451 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.451 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 14 03:50:39.451 INFO [stderr] 
Dec 14 03:50:39.451 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.451 INFO [stderr]   --> src/stats.rs:78:9
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 14 03:50:39.451 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.451 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 14 03:50:39.451 INFO [stderr] 
Dec 14 03:50:39.451 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.451 INFO [stderr]   --> src/stats.rs:79:9
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 14 03:50:39.451 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.451 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 14 03:50:39.451 INFO [stderr] 
Dec 14 03:50:39.451 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 03:50:39.451 INFO [stderr]   --> src/stats.rs:80:9
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 14 03:50:39.451 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 03:50:39.451 INFO [stderr]    |
Dec 14 03:50:39.451 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 03:50:39.451 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 14 03:50:39.451 INFO [stderr] 
Dec 14 03:50:40.327 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.75s
Dec 14 03:50:40.351 INFO [stderr] su: No module specific data is present
Dec 14 03:50:41.207 INFO running `"docker" "inspect" "8c1247a10d3bc0c0d2c3786d1b5448049f412ea0f9eba07eacb475553ce63c5c"`
Dec 14 03:50:41.391 INFO running `"docker" "rm" "-f" "8c1247a10d3bc0c0d2c3786d1b5448049f412ea0f9eba07eacb475553ce63c5c"`
Dec 14 03:50:41.738 INFO [stdout] 8c1247a10d3bc0c0d2c3786d1b5448049f412ea0f9eba07eacb475553ce63c5c
Dec 14 03:50:41.746 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 03:50:42.560 INFO [stdout] 9d8b2a56763516f1eca63a46c94f174dd7726987d0d497958afe59344d99aa76
Dec 14 03:50:42.562 INFO running `"docker" "start" "-a" "9d8b2a56763516f1eca63a46c94f174dd7726987d0d497958afe59344d99aa76"`
Dec 14 03:50:43.975 INFO [stderr] usermod: no changes
Dec 14 03:50:44.268 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Dec 14 03:50:44.286 INFO [stderr]      Running /target/debug/deps/object_spam-d258b544ca9af01f
Dec 14 03:50:44.298 INFO [stdout] 
Dec 14 03:50:44.298 INFO [stdout] running 0 tests
Dec 14 03:50:44.298 INFO [stdout] 
Dec 14 03:50:44.298 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 03:50:44.298 INFO [stdout] 
Dec 14 03:50:44.302 INFO [stderr] su: No module specific data is present
Dec 14 03:50:44.596 INFO running `"docker" "inspect" "9d8b2a56763516f1eca63a46c94f174dd7726987d0d497958afe59344d99aa76"`
Dec 14 03:50:44.661 INFO running `"docker" "rm" "-f" "9d8b2a56763516f1eca63a46c94f174dd7726987d0d497958afe59344d99aa76"`
Dec 14 03:50:44.776 INFO [stdout] 9d8b2a56763516f1eca63a46c94f174dd7726987d0d497958afe59344d99aa76