[INFO] fetching crate hzgrow-r502 0.2.2...
[INFO] testing hzgrow-r502-0.2.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate hzgrow-r502 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate hzgrow-r502 0.2.2
[INFO] finished tweaking crates.io crate hzgrow-r502 0.2.2
[INFO] tweaked toml for crates.io crate hzgrow-r502 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hzgrow-r502 0.2.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hzgrow-r502 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libudev-sys v0.1.4
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] [stderr]   Downloaded cc v1.0.47
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccb986bcf84564a55049acf24db85670b56cba636292c16b65a536fe8c62e1d9
[INFO] running `Command { std: "docker" "start" "-a" "ccb986bcf84564a55049acf24db85670b56cba636292c16b65a536fe8c62e1d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb986bcf84564a55049acf24db85670b56cba636292c16b65a536fe8c62e1d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb986bcf84564a55049acf24db85670b56cba636292c16b65a536fe8c62e1d9", kill_on_drop: false }`
[INFO] [stdout] ccb986bcf84564a55049acf24db85670b56cba636292c16b65a536fe8c62e1d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 5b12f67eee5dba04be34999cb52e5f560981610993dae5fe349d807ba123eb8d
[INFO] running `Command { std: "docker" "start" "-a" "5b12f67eee5dba04be34999cb52e5f560981610993dae5fe349d807ba123eb8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling hzgrow-r502 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: unicode codepoint changing visible direction of text present in doc comment
[INFO] [stdout]    --> src/responses.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 356 |     /// The default value is 6 for 57,600� baud.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment contains an invisible unicode text flow control codepoint
[INFO] [stdout]     |
[INFO] [stdout]     = note: these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen
[INFO] [stdout]     = note: if their presence wasn't intentional, you can remove them
[INFO] [stdout]     = note: if you want to keep them but make them visible in your source code, you can escape them: '\u{202c}'
[INFO] [stdout]     = note: `#[deny(text_direction_codepoint_in_literal)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hzgrow-r502` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5b12f67eee5dba04be34999cb52e5f560981610993dae5fe349d807ba123eb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b12f67eee5dba04be34999cb52e5f560981610993dae5fe349d807ba123eb8d", kill_on_drop: false }`
[INFO] [stdout] 5b12f67eee5dba04be34999cb52e5f560981610993dae5fe349d807ba123eb8d