Dec 06 07:46:01.673 INFO testing agilestacks/object-spam against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 07:46:01.673 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07:46:02.238 INFO [stdout] a953341ec418f35158b0b7b36761644d3a9accb96e0c9068e3cbbb889dbe2e40
Dec 06 07:46:02.240 INFO running `"docker" "start" "-a" "a953341ec418f35158b0b7b36761644d3a9accb96e0c9068e3cbbb889dbe2e40"`
Dec 06 07:46:04.743 INFO [stderr] usermod: no changes
Dec 06 07:46:05.193 INFO [stderr]    Compiling quantiles v0.7.1
Dec 06 07:46:05.193 INFO [stderr]    Compiling human-size v0.4.0
Dec 06 07:46:05.210 INFO [stderr]    Compiling crossbeam-epoch v0.6.1
Dec 06 07:46:08.108 INFO [stderr]    Compiling crossbeam-deque v0.6.2
Dec 06 07:46:09.049 INFO [stderr]    Compiling tokio-threadpool v0.1.8
Dec 06 07:46:12.766 INFO [stderr]    Compiling tokio-fs v0.1.4
Dec 06 07:46:15.284 INFO [stderr]    Compiling tokio v0.1.11
Dec 06 07:46:19.410 INFO [stderr]    Compiling hyper v0.12.14
Dec 06 07:46:28.976 INFO [stderr]    Compiling rusoto_credential v0.14.0
Dec 06 07:46:28.978 INFO [stderr]    Compiling hyper-tls v0.3.1
Dec 06 07:46:39.477 INFO [stderr]    Compiling rusoto_core v0.35.0
Dec 06 07:46:51.475 INFO [stderr]    Compiling rusoto_s3 v0.35.0
Dec 06 07:47:15.404 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 06 07:47:20.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.632 INFO [stderr]   --> src/stats.rs:71:9
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 06 07:47:20.632 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 07:47:20.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.632 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 07:47:20.632 INFO [stderr] 
Dec 06 07:47:20.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.632 INFO [stderr]   --> src/stats.rs:72:9
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 06 07:47:20.632 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.632 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 07:47:20.632 INFO [stderr] 
Dec 06 07:47:20.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.632 INFO [stderr]   --> src/stats.rs:73:9
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 06 07:47:20.632 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.632 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 07:47:20.632 INFO [stderr] 
Dec 06 07:47:20.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.632 INFO [stderr]   --> src/stats.rs:74:9
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 06 07:47:20.632 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.632 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 07:47:20.632 INFO [stderr] 
Dec 06 07:47:20.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.632 INFO [stderr]   --> src/stats.rs:75:9
Dec 06 07:47:20.632 INFO [stderr]    |
Dec 06 07:47:20.632 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:20.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.633 INFO [stderr]   --> src/stats.rs:76:9
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:20.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.633 INFO [stderr]   --> src/stats.rs:77:9
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:20.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.633 INFO [stderr]   --> src/stats.rs:78:9
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:20.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.633 INFO [stderr]   --> src/stats.rs:79:9
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:20.633 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:20.633 INFO [stderr]   --> src/stats.rs:80:9
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 06 07:47:20.633 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:20.633 INFO [stderr]    |
Dec 06 07:47:20.633 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:20.633 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 07:47:20.633 INFO [stderr] 
Dec 06 07:47:28.377 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
Dec 06 07:47:28.392 INFO [stderr] su: No module specific data is present
Dec 06 07:47:28.931 INFO running `"docker" "inspect" "a953341ec418f35158b0b7b36761644d3a9accb96e0c9068e3cbbb889dbe2e40"`
Dec 06 07:47:29.033 INFO running `"docker" "rm" "-f" "a953341ec418f35158b0b7b36761644d3a9accb96e0c9068e3cbbb889dbe2e40"`
Dec 06 07:47:29.150 INFO [stdout] a953341ec418f35158b0b7b36761644d3a9accb96e0c9068e3cbbb889dbe2e40
Dec 06 07:47:29.154 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07:47:29.435 INFO [stdout] 87f4bf053b5b10ffdb3cedf65f9216486c0165f79480f094ddb3d5d9ce9f6d4c
Dec 06 07:47:29.437 INFO running `"docker" "start" "-a" "87f4bf053b5b10ffdb3cedf65f9216486c0165f79480f094ddb3d5d9ce9f6d4c"`
Dec 06 07:47:29.786 INFO [stderr] usermod: no changes
Dec 06 07:47:29.959 INFO [stderr]    Compiling object-spam v0.1.0 (/source)
Dec 06 07:47:35.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.034 INFO [stderr]   --> src/stats.rs:71:9
Dec 06 07:47:35.034 INFO [stderr]    |
Dec 06 07:47:35.034 INFO [stderr] 71 |         writeln!(f, "Timing results for {}", self.category);
Dec 06 07:47:35.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.034 INFO [stderr]    |
Dec 06 07:47:35.034 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 07:47:35.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.034 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 07:47:35.034 INFO [stderr] 
Dec 06 07:47:35.034 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.034 INFO [stderr]   --> src/stats.rs:72:9
Dec 06 07:47:35.034 INFO [stderr]    |
Dec 06 07:47:35.034 INFO [stderr] 72 |         writeln!(f, "Bandwidth = {:.3} MB/sec", self.bytes / self.sum as f64 / (1024.0 * 1024.0));
Dec 06 07:47:35.034 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.034 INFO [stderr]    |
Dec 06 07:47:35.034 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.034 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 07:47:35.034 INFO [stderr] 
Dec 06 07:47:35.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.040 INFO [stderr]   --> src/stats.rs:73:9
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr] 73 |         writeln!(f, "Mean = {:.3}", (self.max - self.min) / 2_f64);
Dec 06 07:47:35.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.040 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 07:47:35.040 INFO [stderr] 
Dec 06 07:47:35.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.040 INFO [stderr]   --> src/stats.rs:74:9
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr] 74 |         writeln!(f, "Average = {:.3}", self.sum / self.num_samples as f64);
Dec 06 07:47:35.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.040 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 07:47:35.040 INFO [stderr] 
Dec 06 07:47:35.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.040 INFO [stderr]   --> src/stats.rs:75:9
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr] 75 |         writeln!(f, "Max = {:.3}", self.max);
Dec 06 07:47:35.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.040 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 07:47:35.040 INFO [stderr] 
Dec 06 07:47:35.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.040 INFO [stderr]   --> src/stats.rs:76:9
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr] 76 |         writeln!(f, "Min = {:.3}", self.min);
Dec 06 07:47:35.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.040 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 07:47:35.040 INFO [stderr] 
Dec 06 07:47:35.040 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.040 INFO [stderr]   --> src/stats.rs:77:9
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr] 77 |         writeln!(f, "50th Percenile value = {:.3}", self.histogram[FIFTY]);
Dec 06 07:47:35.040 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.040 INFO [stderr]    |
Dec 06 07:47:35.040 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.040 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 07:47:35.041 INFO [stderr] 
Dec 06 07:47:35.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.041 INFO [stderr]   --> src/stats.rs:78:9
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr] 78 |         writeln!(f, "70th Percenile value = {:.3}", self.histogram[SEVENTY]);
Dec 06 07:47:35.041 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.041 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 07:47:35.041 INFO [stderr] 
Dec 06 07:47:35.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.041 INFO [stderr]   --> src/stats.rs:79:9
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr] 79 |         writeln!(f, "90th Percenile value = {:.3}", self.histogram[NINETY]);
Dec 06 07:47:35.041 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.041 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 07:47:35.041 INFO [stderr] 
Dec 06 07:47:35.041 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 07:47:35.041 INFO [stderr]   --> src/stats.rs:80:9
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr] 80 |         writeln!(f, "95th Percenile value = {:.3}", self.histogram[NINETY5]);
Dec 06 07:47:35.041 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 07:47:35.041 INFO [stderr]    |
Dec 06 07:47:35.041 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 07:47:35.041 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 07:47:35.041 INFO [stderr] 
Dec 06 07:47:35.856 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.05s
Dec 06 07:47:35.870 INFO [stderr] su: No module specific data is present
Dec 06 07:47:36.508 INFO running `"docker" "inspect" "87f4bf053b5b10ffdb3cedf65f9216486c0165f79480f094ddb3d5d9ce9f6d4c"`
Dec 06 07:47:36.698 INFO running `"docker" "rm" "-f" "87f4bf053b5b10ffdb3cedf65f9216486c0165f79480f094ddb3d5d9ce9f6d4c"`
Dec 06 07:47:36.861 INFO [stdout] 87f4bf053b5b10ffdb3cedf65f9216486c0165f79480f094ddb3d5d9ce9f6d4c
Dec 06 07:47:36.863 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 07:47:37.109 INFO [stdout] a2ece031d361441788a6e46c8e57480102539154847ffb09b9cfd7af37c38860
Dec 06 07:47:37.114 INFO running `"docker" "start" "-a" "a2ece031d361441788a6e46c8e57480102539154847ffb09b9cfd7af37c38860"`
Dec 06 07:47:37.677 INFO [stderr] usermod: no changes
Dec 06 07:47:37.891 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 06 07:47:37.909 INFO [stderr]      Running /target/debug/deps/object_spam-875e2890e15a996d
Dec 06 07:47:37.914 INFO [stdout] 
Dec 06 07:47:37.914 INFO [stdout] running 0 tests
Dec 06 07:47:37.914 INFO [stdout] 
Dec 06 07:47:37.914 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 07:47:37.914 INFO [stdout] 
Dec 06 07:47:37.918 INFO [stderr] su: No module specific data is present
Dec 06 07:47:38.249 INFO running `"docker" "inspect" "a2ece031d361441788a6e46c8e57480102539154847ffb09b9cfd7af37c38860"`
Dec 06 07:47:38.312 INFO running `"docker" "rm" "-f" "a2ece031d361441788a6e46c8e57480102539154847ffb09b9cfd7af37c38860"`
Dec 06 07:47:38.397 INFO [stdout] a2ece031d361441788a6e46c8e57480102539154847ffb09b9cfd7af37c38860