[INFO] fetching crate dualshock4 0.1.1...
[INFO] testing dualshock4-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dualshock4 0.1.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate dualshock4 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 dualshock4 0.1.1
[INFO] finished tweaking crates.io crate dualshock4 0.1.1
[INFO] tweaked toml for crates.io crate dualshock4 0.1.1 written to /workspace/builds/worker-103/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 semver v0.6.0
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded scroll v0.9.2
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded clippy_lints v0.0.187
[INFO] [stderr]   Downloaded itertools v0.6.5
[INFO] [stderr]   Downloaded clippy v0.0.187
[INFO] [stderr]   Downloaded regex-syntax v0.4.2
[INFO] [stderr]   Downloaded hidapi v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 8c80c03dec198c67f8d9d4107847632e3c5fae1ef7dafaec00c99865f3441d62
[INFO] running `Command { std: "docker" "start" "-a" "8c80c03dec198c67f8d9d4107847632e3c5fae1ef7dafaec00c99865f3441d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c80c03dec198c67f8d9d4107847632e3c5fae1ef7dafaec00c99865f3441d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c80c03dec198c67f8d9d4107847632e3c5fae1ef7dafaec00c99865f3441d62", kill_on_drop: false }`
[INFO] [stdout] 8c80c03dec198c67f8d9d4107847632e3c5fae1ef7dafaec00c99865f3441d62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 2d533ba606096ef2f411b2d378b0eb27f0b233a9c32a3a0753da7f9f6bb82623
[INFO] running `Command { std: "docker" "start" "-a" "2d533ba606096ef2f411b2d378b0eb27f0b233a9c32a3a0753da7f9f6bb82623", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling hidapi v0.4.1
[INFO] [stderr]    Compiling dualshock4 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dualshock4` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d533ba606096ef2f411b2d378b0eb27f0b233a9c32a3a0753da7f9f6bb82623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d533ba606096ef2f411b2d378b0eb27f0b233a9c32a3a0753da7f9f6bb82623", kill_on_drop: false }`
[INFO] [stdout] 2d533ba606096ef2f411b2d378b0eb27f0b233a9c32a3a0753da7f9f6bb82623