[INFO] crate mockstream 0.0.3 is already in cache
[INFO] testing mockstream-0.0.3 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate mockstream 0.0.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mockstream 0.0.3 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mockstream 0.0.3
[INFO] finished tweaking crates.io crate mockstream 0.0.3
[INFO] tweaked toml for crates.io crate mockstream 0.0.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 458bc44f143555f22b3dc5a64198402210d014977eb4063610b3ad5798c2f3d5
[INFO] running `"docker" "start" "-a" "458bc44f143555f22b3dc5a64198402210d014977eb4063610b3ad5798c2f3d5"`
[INFO] [stderr]    Compiling mockstream v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "458bc44f143555f22b3dc5a64198402210d014977eb4063610b3ad5798c2f3d5"`
[INFO] running `"docker" "rm" "-f" "458bc44f143555f22b3dc5a64198402210d014977eb4063610b3ad5798c2f3d5"`
[INFO] [stdout] 458bc44f143555f22b3dc5a64198402210d014977eb4063610b3ad5798c2f3d5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 836c09dbf7824a7348b4e04f0b5bde0faf84ec226847fb30878169ff4a9dfbe2
[INFO] running `"docker" "start" "-a" "836c09dbf7824a7348b4e04f0b5bde0faf84ec226847fb30878169ff4a9dfbe2"`
[INFO] [stderr]    Compiling mockstream v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tests.rs:133:14
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let count = try![s.read(v.as_mut())];
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/tests.rs:48:19
[INFO] [stderr]    |
[INFO] [stderr] 48 |     assert_eq!(error.description(), "The dog ate the ethernet cable");
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/tests.rs:91:19
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(error.description(), "Access denied");
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `"docker" "inspect" "836c09dbf7824a7348b4e04f0b5bde0faf84ec226847fb30878169ff4a9dfbe2"`
[INFO] running `"docker" "rm" "-f" "836c09dbf7824a7348b4e04f0b5bde0faf84ec226847fb30878169ff4a9dfbe2"`
[INFO] [stdout] 836c09dbf7824a7348b4e04f0b5bde0faf84ec226847fb30878169ff4a9dfbe2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49919ee6c7ecc1c94fab3b387fc4e4f0730ee10f8b15a93010c50caa04078b70
[INFO] running `"docker" "start" "-a" "49919ee6c7ecc1c94fab3b387fc4e4f0730ee10f8b15a93010c50caa04078b70"`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tests.rs:133:14
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let count = try![s.read(v.as_mut())];
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/tests.rs:48:19
[INFO] [stderr]    |
[INFO] [stderr] 48 |     assert_eq!(error.description(), "The dog ate the ethernet cable");
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/tests.rs:91:19
[INFO] [stderr]    |
[INFO] [stderr] 91 |     assert_eq!(error.description(), "Access denied");
[INFO] [stderr]    |                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mockstream-46738fe78f93af4a
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_failing_mock_stream_chain ... ok
[INFO] [stdout] test tests::test_failing_mock_stream_read ... ok
[INFO] [stdout] test tests::test_failing_mock_stream_chain_interrupted ... ok
[INFO] [stdout] test tests::test_shared_mock_stream ... ok
[INFO] [stdout] test tests::test_failing_mock_stream_write ... ok
[INFO] [stdout] test tests::test_mock_stream_read_lines ... ok
[INFO] [stdout] test tests::test_mock_stream_write ... ok
[INFO] [stdout] test tests::test_mock_stream_pop_again ... ok
[INFO] [stdout] test tests::test_mock_stream_read ... ok
[INFO] [stdout] test tests::test_mock_stream_empty_and_fill ... ok
[INFO] [stdout] test tests::test_sync_mock_stream ... ok
[INFO] [stderr]    Doc-tests mockstream
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - FailingMockStream (line 159) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "49919ee6c7ecc1c94fab3b387fc4e4f0730ee10f8b15a93010c50caa04078b70"`
[INFO] running `"docker" "rm" "-f" "49919ee6c7ecc1c94fab3b387fc4e4f0730ee10f8b15a93010c50caa04078b70"`
[INFO] [stdout] 49919ee6c7ecc1c94fab3b387fc4e4f0730ee10f8b15a93010c50caa04078b70