[INFO] fetching crate drogue-esp8266 0.3.1...
[INFO] testing drogue-esp8266-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate drogue-esp8266 0.3.1 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate drogue-esp8266 0.3.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-68/source/.cargo/config
[INFO] started tweaking crates.io crate drogue-esp8266 0.3.1
[INFO] finished tweaking crates.io crate drogue-esp8266 0.3.1
[INFO] tweaked toml for crates.io crate drogue-esp8266 0.3.1 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c93a0ba65fb53430b58bb7a2a3a201bac90134eea4aeb03b3f8d6c2d5e0f6b63
[INFO] running `Command { std: "docker" "start" "-a" "c93a0ba65fb53430b58bb7a2a3a201bac90134eea4aeb03b3f8d6c2d5e0f6b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c93a0ba65fb53430b58bb7a2a3a201bac90134eea4aeb03b3f8d6c2d5e0f6b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93a0ba65fb53430b58bb7a2a3a201bac90134eea4aeb03b3f8d6c2d5e0f6b63", kill_on_drop: false }`
[INFO] [stdout] c93a0ba65fb53430b58bb7a2a3a201bac90134eea4aeb03b3f8d6c2d5e0f6b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e09098b3945c05c0c36ab4d021dacbc43faad935cb3c05fb5c6700579616e7dc
[INFO] running `Command { std: "docker" "start" "-a" "e09098b3945c05c0c36ab4d021dacbc43faad935cb3c05fb5c6700579616e7dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling no-std-net v0.4.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling drogue-esp8266 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling moveslice v2.0.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling drogue-network v0.2.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "e09098b3945c05c0c36ab4d021dacbc43faad935cb3c05fb5c6700579616e7dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09098b3945c05c0c36ab4d021dacbc43faad935cb3c05fb5c6700579616e7dc", kill_on_drop: false }`
[INFO] [stdout] e09098b3945c05c0c36ab4d021dacbc43faad935cb3c05fb5c6700579616e7dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 971466d7556ed06d6e2b910b4825f31a6c584fa1b1d650667cf7e6c93a955d2d
[INFO] running `Command { std: "docker" "start" "-a" "971466d7556ed06d6e2b910b4825f31a6c584fa1b1d650667cf7e6c93a955d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling drogue-esp8266 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `arrayvec`
[INFO] [stdout]    --> src/protocol.rs:267:9
[INFO] [stdout]     |
[INFO] [stdout] 267 |     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:296:57
[INFO] [stdout]     |
[INFO] [stdout] 296 |         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:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     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` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "971466d7556ed06d6e2b910b4825f31a6c584fa1b1d650667cf7e6c93a955d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "971466d7556ed06d6e2b910b4825f31a6c584fa1b1d650667cf7e6c93a955d2d", kill_on_drop: false }`
[INFO] [stdout] 971466d7556ed06d6e2b910b4825f31a6c584fa1b1d650667cf7e6c93a955d2d