[INFO] fetching crate dobot 0.1.1...
[INFO] building dobot-0.1.1 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate dobot 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dobot 0.1.1 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afc7237e65de09a806432e7e68a055e67fe8950b46fe93b1402244d95e1a3a87
[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" "afc7237e65de09a806432e7e68a055e67fe8950b46fe93b1402244d95e1a3a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc7237e65de09a806432e7e68a055e67fe8950b46fe93b1402244d95e1a3a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc7237e65de09a806432e7e68a055e67fe8950b46fe93b1402244d95e1a3a87", kill_on_drop: false }`
[INFO] [stdout] afc7237e65de09a806432e7e68a055e67fe8950b46fe93b1402244d95e1a3a87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 097b3ce9a02751cd00980e234dab6161ab0e3aea2e57dc3d81475a3ca80cc6b3
[INFO] running `Command { std: "docker" "start" "-a" "097b3ce9a02751cd00980e234dab6161ab0e3aea2e57dc3d81475a3ca80cc6b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling addr2line v0.15.1
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling serialport v3.3.0
[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[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 <https://github.com/rust-lang/rust/issues/76118> for more information
[INFO] [stdout]     = help: add `#![feature(array_methods)]` to the crate attributes to enable
[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 <https://github.com/rust-lang/rust/issues/76118> for more information
[INFO] [stdout]     = help: add `#![feature(array_methods)]` to the crate attributes to enable
[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 <https://github.com/rust-lang/rust/issues/76118> for more information
[INFO] [stdout]     = help: add `#![feature(array_methods)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dobot`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "097b3ce9a02751cd00980e234dab6161ab0e3aea2e57dc3d81475a3ca80cc6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "097b3ce9a02751cd00980e234dab6161ab0e3aea2e57dc3d81475a3ca80cc6b3", kill_on_drop: false }`
[INFO] [stdout] 097b3ce9a02751cd00980e234dab6161ab0e3aea2e57dc3d81475a3ca80cc6b3
