[INFO] fetching crate mh-z19c 0.2.0...
[INFO] testing mh-z19c-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mh-z19c 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mh-z19c 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mh-z19c 0.2.0
[INFO] finished tweaking crates.io crate mh-z19c 0.2.0
[INFO] tweaked toml for crates.io crate mh-z19c 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dc7f9d5ced02a91d4509cb16827cf7f7fc5dfeecb60f3bfeb6f3a5e76d583e0
[INFO] running `Command { std: "docker" "start" "-a" "9dc7f9d5ced02a91d4509cb16827cf7f7fc5dfeecb60f3bfeb6f3a5e76d583e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dc7f9d5ced02a91d4509cb16827cf7f7fc5dfeecb60f3bfeb6f3a5e76d583e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc7f9d5ced02a91d4509cb16827cf7f7fc5dfeecb60f3bfeb6f3a5e76d583e0", kill_on_drop: false }`
[INFO] [stdout] 9dc7f9d5ced02a91d4509cb16827cf7f7fc5dfeecb60f3bfeb6f3a5e76d583e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a463a5503bb5f20c04e6b45daf6160f2c8819be407f7efb19e265a81ce22ef3
[INFO] running `Command { std: "docker" "start" "-a" "5a463a5503bb5f20c04e6b45daf6160f2c8819be407f7efb19e265a81ce22ef3", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling mh-z19c v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "5a463a5503bb5f20c04e6b45daf6160f2c8819be407f7efb19e265a81ce22ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a463a5503bb5f20c04e6b45daf6160f2c8819be407f7efb19e265a81ce22ef3", kill_on_drop: false }`
[INFO] [stdout] 5a463a5503bb5f20c04e6b45daf6160f2c8819be407f7efb19e265a81ce22ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03111f6bb615ae51a99f80d3f1fa7c6b6b588e9ffa3470d38efad796715faaf0
[INFO] running `Command { std: "docker" "start" "-a" "03111f6bb615ae51a99f80d3f1fa7c6b6b588e9ffa3470d38efad796715faaf0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mh-z19c v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test_support`
[INFO] [stdout]    --> src/nb_comm.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |     use test_support::serial_mock::SerialMock;
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `test_support`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test_support`
[INFO] [stdout]    --> src/lib.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     use test_support::serial_mock::SerialMock;
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `test_support`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_support`
[INFO] [stdout]    --> src/lib.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |     use test_support::{
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `test_support`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:322:26
[INFO] [stdout]     |
[INFO] [stdout] 322 |         let write_mock = SerialMock::new(
[INFO] [stdout]     |                          ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:344:13
[INFO] [stdout]     |
[INFO] [stdout] 344 |             SerialMock::new(vec![], vec![Err(nb::Error::Other("expected error".into()))]);
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:356:25
[INFO] [stdout]     |
[INFO] [stdout] 356 |         let read_mock = SerialMock::new(
[INFO] [stdout]     |                         ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:378:13
[INFO] [stdout]     |
[INFO] [stdout] 378 |             SerialMock::new(vec![Err(nb::Error::Other("expected error".into()))], vec![]);
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:390:27
[INFO] [stdout]     |
[INFO] [stdout] 390 |         let serial_mock = SerialMock::new(
[INFO] [stdout]     |                           ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/nb_comm.rs:414:13
[INFO] [stdout]     |
[INFO] [stdout] 414 |             SerialMock::new(vec![], vec![Err(nb::Error::Other("expected error".into()))]);
[INFO] [stdout]     |             ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/lib.rs:263:20
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let uart = SerialMock::new(
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/lib.rs:314:20
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let uart = SerialMock::new(vec![], vec![Err(nb::Error::Other("No more data.".into()))]);
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/lib.rs:324:20
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let uart = SerialMock::new(vec![], vec![Err(nb::Error::WouldBlock)]);
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/lib.rs:335:20
[INFO] [stdout]     |
[INFO] [stdout] 335 |         let uart = SerialMock::new(read_data, vec![Ok(()); 2 * 9]);
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SerialMock`
[INFO] [stdout]    --> src/lib.rs:345:20
[INFO] [stdout]     |
[INFO] [stdout] 345 |         let uart = SerialMock::new(
[INFO] [stdout]     |                    ^^^^^^^^^^ use of undeclared type `SerialMock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mh-z19c` due to 15 previous errors
[INFO] running `Command { std: "docker" "inspect" "03111f6bb615ae51a99f80d3f1fa7c6b6b588e9ffa3470d38efad796715faaf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03111f6bb615ae51a99f80d3f1fa7c6b6b588e9ffa3470d38efad796715faaf0", kill_on_drop: false }`
[INFO] [stdout] 03111f6bb615ae51a99f80d3f1fa7c6b6b588e9ffa3470d38efad796715faaf0