[INFO] fetching crate dobot 0.1.1... [INFO] testing dobot-0.1.1 against 1.55.0 for beta-1.56-1 [INFO] extracting crate dobot 0.1.1 into /workspace/builds/worker-40/source [INFO] validating manifest of crates.io crate dobot 0.1.1 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 dobot 0.1.1 [INFO] finished tweaking crates.io crate dobot 0.1.1 [INFO] tweaked toml for crates.io crate dobot 0.1.1 written to /workspace/builds/worker-40/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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mio-serial v3.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] d5f22e010c672493e9df88ba1b03297f32b56f8e122c78a487c3a0255285c5fc [INFO] running `Command { std: "docker" "start" "-a" "d5f22e010c672493e9df88ba1b03297f32b56f8e122c78a487c3a0255285c5fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d5f22e010c672493e9df88ba1b03297f32b56f8e122c78a487c3a0255285c5fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5f22e010c672493e9df88ba1b03297f32b56f8e122c78a487c3a0255285c5fc", kill_on_drop: false }` [INFO] [stdout] d5f22e010c672493e9df88ba1b03297f32b56f8e122c78a487c3a0255285c5fc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 5d2f30852161d5138b609cce65ad1783799a0db966f01b03431b2ca80ba3d258 [INFO] running `Command { std: "docker" "start" "-a" "5d2f30852161d5138b609cce65ad1783799a0db966f01b03431b2ca80ba3d258", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling gimli v0.25.0 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling rustc-demangle v0.1.21 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Compiling object v0.26.2 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling libudev v0.2.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Compiling synstructure v0.12.5 [INFO] [stderr] Compiling addr2line v0.16.0 [INFO] [stderr] Compiling getset v0.0.9 [INFO] [stderr] Compiling serialport v3.3.0 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling mio-serial v3.3.1 [INFO] [stderr] Compiling tokio-serial v4.3.3 [INFO] [stderr] Compiling dobot v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0432]: unresolved import `std::array::FixedSizeArray` [INFO] [stdout] --> src/message.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{array::FixedSizeArray, convert::TryInto, io::prelude::*, marker::Unpin}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ no `FixedSizeArray` in `array` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(fixed_size_array)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods' [INFO] [stdout] --> src/message.rs:152:29 [INFO] [stdout] | [INFO] [stdout] 152 | let bytes = [prefix.as_slice(), suffix.as_slice()].concat(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76118 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods' [INFO] [stdout] --> src/message.rs:127:27 [INFO] [stdout] | [INFO] [stdout] 127 | header_buffer.as_slice(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76118 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods' [INFO] [stdout] --> src/message.rs:128:24 [INFO] [stdout] | [INFO] [stdout] 128 | len_buffer.as_slice(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76118 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `dobot` due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "5d2f30852161d5138b609cce65ad1783799a0db966f01b03431b2ca80ba3d258", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d2f30852161d5138b609cce65ad1783799a0db966f01b03431b2ca80ba3d258", kill_on_drop: false }` [INFO] [stdout] 5d2f30852161d5138b609cce65ad1783799a0db966f01b03431b2ca80ba3d258