[INFO] fetching crate drogue-esp8266 0.2.0...
[INFO] checking drogue-esp8266-0.2.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate drogue-esp8266 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate drogue-esp8266 0.2.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate drogue-esp8266 0.2.0
[INFO] finished tweaking crates.io crate drogue-esp8266 0.2.0
[INFO] tweaked toml for crates.io crate drogue-esp8266 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded no-std-net v0.4.0
[INFO] [stderr]   Downloaded moveslice v2.0.1
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bfa024f782ab0de73ab76ad83323ad0c96d708e97a81526c7fb9ede2d3ce5bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6bfa024f782ab0de73ab76ad83323ad0c96d708e97a81526c7fb9ede2d3ce5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bfa024f782ab0de73ab76ad83323ad0c96d708e97a81526c7fb9ede2d3ce5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bfa024f782ab0de73ab76ad83323ad0c96d708e97a81526c7fb9ede2d3ce5bc", kill_on_drop: false }`
[INFO] [stdout] 6bfa024f782ab0de73ab76ad83323ad0c96d708e97a81526c7fb9ede2d3ce5bc
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e32c41262793e577fabccb25d6eae51e5248f0e07f958c0db5abd07a0aa0bbdf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e32c41262793e577fabccb25d6eae51e5248f0e07f958c0db5abd07a0aa0bbdf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking moveslice v2.0.1
[INFO] [stderr]     Checking no-std-net v0.4.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking drogue-network v0.1.0
[INFO] [stderr]     Checking drogue-esp8266 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `arrayvec`
[INFO] [stdout]    --> src/protocol.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use arrayvec::ArrayString;
[INFO] [stdout]     |         ^^^^^^^^ use of undeclared crate or module `arrayvec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/protocol.rs:227:57
[INFO] [stdout]     |
[INFO] [stdout] 227 |         write!(&mut buf, "{:?}", Response::DataReceived(array, data.len())).expect("Can't write");
[INFO] [stdout]     |                                                         ^^^^^ expected an array with a fixed size of 512 elements, found one with 128 elements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt::Write`
[INFO] [stdout]    --> src/protocol.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     use core::fmt::Write;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drogue-esp8266`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e32c41262793e577fabccb25d6eae51e5248f0e07f958c0db5abd07a0aa0bbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32c41262793e577fabccb25d6eae51e5248f0e07f958c0db5abd07a0aa0bbdf", kill_on_drop: false }`
[INFO] [stdout] e32c41262793e577fabccb25d6eae51e5248f0e07f958c0db5abd07a0aa0bbdf