[INFO] fetching crate mh-z19c 0.3.0...
[INFO] checking mh-z19c-0.3.0 against master#96df4943409564a187894018f15f795426dc2e1f for pr-118968
[INFO] extracting crate mh-z19c 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate mh-z19c 0.3.0 on toolchain 96df4943409564a187894018f15f795426dc2e1f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mh-z19c 0.3.0
[INFO] finished tweaking crates.io crate mh-z19c 0.3.0
[INFO] tweaked toml for crates.io crate mh-z19c 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking mh-z19c-0.3.0 against try#7e4f74fb8736fea8f455bb6e094122965ae8f4cd for pr-118968
[INFO] extracting crate mh-z19c 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate mh-z19c 0.3.0 on toolchain 7e4f74fb8736fea8f455bb6e094122965ae8f4cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mh-z19c 0.3.0
[INFO] finished tweaking crates.io crate mh-z19c 0.3.0
[INFO] tweaked toml for crates.io crate mh-z19c 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0837fd0066fa195066346d356507b20cc126603a9cfb5f4dc78c4aa2d8d5f78
[INFO] running `Command { std: "docker" "start" "-a" "e0837fd0066fa195066346d356507b20cc126603a9cfb5f4dc78c4aa2d8d5f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0837fd0066fa195066346d356507b20cc126603a9cfb5f4dc78c4aa2d8d5f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0837fd0066fa195066346d356507b20cc126603a9cfb5f4dc78c4aa2d8d5f78", kill_on_drop: false }`
[INFO] [stdout] e0837fd0066fa195066346d356507b20cc126603a9cfb5f4dc78c4aa2d8d5f78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72fcf9d475394c826a32dc00e3bef0b9ac01d7a89729bae03df755acf9c65aaa
[INFO] running `Command { std: "docker" "start" "-a" "72fcf9d475394c826a32dc00e3bef0b9ac01d7a89729bae03df755acf9c65aaa", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking mh-z19c v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `test_support`
[INFO] [stdout]    --> src/nb_comm.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 |     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:483:9
[INFO] [stdout]     |
[INFO] [stdout] 483 |     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:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |     use test_support::{
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `test_support`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "72fcf9d475394c826a32dc00e3bef0b9ac01d7a89729bae03df755acf9c65aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72fcf9d475394c826a32dc00e3bef0b9ac01d7a89729bae03df755acf9c65aaa", kill_on_drop: false }`
[INFO] [stdout] 72fcf9d475394c826a32dc00e3bef0b9ac01d7a89729bae03df755acf9c65aaa