Dec 14 18:04:40.820 INFO testing subunit-rust-0.1.2 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 18:04:40.820 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 18:04:41.016 INFO [stdout] ebb93d7febfadb92d0c524c30e9558f73d0d06b8130af162782449040e4a4107
Dec 14 18:04:41.017 INFO running `"docker" "start" "-a" "ebb93d7febfadb92d0c524c30e9558f73d0d06b8130af162782449040e4a4107"`
Dec 14 18:04:41.468 INFO [stderr] usermod: no changes
Dec 14 18:04:41.549 INFO [stderr]    Compiling subunit-rust v0.1.2 (/source)
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.471 INFO [stderr]    --> src/lib.rs:177:9
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr] 177 |         ret.write_u8(value as u8);
Dec 14 18:04:42.471 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 14 18:04:42.471 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.471 INFO [stderr] 
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.471 INFO [stderr]    --> src/lib.rs:182:9
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr] 182 |         ret.write_u16::<BigEndian>(value as u16 | 0x4000);
Dec 14 18:04:42.471 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.471 INFO [stderr] 
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.471 INFO [stderr]    --> src/lib.rs:187:9
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr] 187 |         ret.write_u8(((value >> 16) | 0x80) as u8);
Dec 14 18:04:42.471 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.471 INFO [stderr] 
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.471 INFO [stderr]    --> src/lib.rs:188:9
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr] 188 |         ret.write_u16::<BigEndian>(value as u16 & 0xffff);
Dec 14 18:04:42.471 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.471 INFO [stderr] 
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.471 INFO [stderr]    --> src/lib.rs:193:9
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr] 193 |         ret.write_u32::<BigEndian>(value | 0xC0000000);
Dec 14 18:04:42.471 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.471 INFO [stderr]     |
Dec 14 18:04:42.471 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.471 INFO [stderr] 
Dec 14 18:04:42.471 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.472 INFO [stderr]    --> src/lib.rs:202:5
Dec 14 18:04:42.472 INFO [stderr]     |
Dec 14 18:04:42.472 INFO [stderr] 202 |     out.write(string.as_bytes());
Dec 14 18:04:42.472 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.472 INFO [stderr]     |
Dec 14 18:04:42.472 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.472 INFO [stderr] 
Dec 14 18:04:42.475 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:42.475 INFO [stderr]    --> src/lib.rs:423:13
Dec 14 18:04:42.475 INFO [stderr]     |
Dec 14 18:04:42.475 INFO [stderr] 423 |             file_content.write(self.file_content.as_ref().unwrap());
Dec 14 18:04:42.475 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:42.475 INFO [stderr]     |
Dec 14 18:04:42.475 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:42.475 INFO [stderr] 
Dec 14 18:04:43.275 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
Dec 14 18:04:43.287 INFO [stderr] su: No module specific data is present
Dec 14 18:04:44.147 INFO running `"docker" "inspect" "ebb93d7febfadb92d0c524c30e9558f73d0d06b8130af162782449040e4a4107"`
Dec 14 18:04:44.383 INFO running `"docker" "rm" "-f" "ebb93d7febfadb92d0c524c30e9558f73d0d06b8130af162782449040e4a4107"`
Dec 14 18:04:44.488 INFO [stdout] ebb93d7febfadb92d0c524c30e9558f73d0d06b8130af162782449040e4a4107
Dec 14 18:04:44.490 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 18:04:44.664 INFO [stdout] d9d989231d9a2c1c3622b203afc535ce2d6d2dd8ce95d747346a812407826f5f
Dec 14 18:04:44.666 INFO running `"docker" "start" "-a" "d9d989231d9a2c1c3622b203afc535ce2d6d2dd8ce95d747346a812407826f5f"`
Dec 14 18:04:45.143 INFO [stderr] usermod: no changes
Dec 14 18:04:45.195 INFO [stderr]    Compiling subunit-rust v0.1.2 (/source)
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:177:9
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 177 |         ret.write_u8(value as u8);
Dec 14 18:04:46.247 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 14 18:04:46.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.247 INFO [stderr] 
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:182:9
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 182 |         ret.write_u16::<BigEndian>(value as u16 | 0x4000);
Dec 14 18:04:46.247 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.247 INFO [stderr] 
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:187:9
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 187 |         ret.write_u8(((value >> 16) | 0x80) as u8);
Dec 14 18:04:46.247 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.247 INFO [stderr] 
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:188:9
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 188 |         ret.write_u16::<BigEndian>(value as u16 & 0xffff);
Dec 14 18:04:46.247 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.247 INFO [stderr] 
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:193:9
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 193 |         ret.write_u32::<BigEndian>(value | 0xC0000000);
Dec 14 18:04:46.247 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.247 INFO [stderr] 
Dec 14 18:04:46.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.247 INFO [stderr]    --> src/lib.rs:202:5
Dec 14 18:04:46.247 INFO [stderr]     |
Dec 14 18:04:46.247 INFO [stderr] 202 |     out.write(string.as_bytes());
Dec 14 18:04:46.248 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.248 INFO [stderr]     |
Dec 14 18:04:46.248 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.248 INFO [stderr] 
Dec 14 18:04:46.256 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 14 18:04:46.256 INFO [stderr]    --> src/lib.rs:423:13
Dec 14 18:04:46.256 INFO [stderr]     |
Dec 14 18:04:46.256 INFO [stderr] 423 |             file_content.write(self.file_content.as_ref().unwrap());
Dec 14 18:04:46.256 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 18:04:46.256 INFO [stderr]     |
Dec 14 18:04:46.256 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 14 18:04:46.256 INFO [stderr] 
Dec 14 18:04:46.963 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
Dec 14 18:04:46.967 INFO [stderr] su: No module specific data is present
Dec 14 18:04:47.388 INFO running `"docker" "inspect" "d9d989231d9a2c1c3622b203afc535ce2d6d2dd8ce95d747346a812407826f5f"`
Dec 14 18:04:47.699 INFO running `"docker" "rm" "-f" "d9d989231d9a2c1c3622b203afc535ce2d6d2dd8ce95d747346a812407826f5f"`
Dec 14 18:04:47.914 INFO [stdout] d9d989231d9a2c1c3622b203afc535ce2d6d2dd8ce95d747346a812407826f5f
Dec 14 18:04:47.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 18:04:48.183 INFO [stdout] 2ef7097c5789967581bc693ee4ab3d87f44be070916ec93b0cc4bda5c4ecb46d
Dec 14 18:04:48.187 INFO running `"docker" "start" "-a" "2ef7097c5789967581bc693ee4ab3d87f44be070916ec93b0cc4bda5c4ecb46d"`
Dec 14 18:04:48.889 INFO [stderr] usermod: no changes
Dec 14 18:04:48.972 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 14 18:04:48.991 INFO [stderr]      Running /target/debug/deps/subunit_rust-ccf3c4cd80cd9dc7
Dec 14 18:04:49.007 INFO [stdout] 
Dec 14 18:04:49.007 INFO [stdout] running 2 tests
Dec 14 18:04:49.007 INFO [stdout] test tests::test_write_event ... ok
Dec 14 18:04:49.007 INFO [stdout] test tests::test_write_full_test_event_with_file_content ... ok
Dec 14 18:04:49.007 INFO [stdout] 
Dec 14 18:04:49.007 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 18:04:49.007 INFO [stdout] 
Dec 14 18:04:49.012 INFO [stderr]    Doc-tests subunit-rust
Dec 14 18:04:50.235 INFO [stdout] 
Dec 14 18:04:50.235 INFO [stdout] running 0 tests
Dec 14 18:04:50.235 INFO [stdout] 
Dec 14 18:04:50.235 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 18:04:50.235 INFO [stdout] 
Dec 14 18:04:50.247 INFO [stderr] su: No module specific data is present
Dec 14 18:04:50.508 INFO running `"docker" "inspect" "2ef7097c5789967581bc693ee4ab3d87f44be070916ec93b0cc4bda5c4ecb46d"`
Dec 14 18:04:50.596 INFO running `"docker" "rm" "-f" "2ef7097c5789967581bc693ee4ab3d87f44be070916ec93b0cc4bda5c4ecb46d"`
Dec 14 18:04:50.679 INFO [stdout] 2ef7097c5789967581bc693ee4ab3d87f44be070916ec93b0cc4bda5c4ecb46d