[INFO] fetching crate orange 0.1.3...
[INFO] testing orange-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate orange 0.1.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate orange 0.1.3 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 orange 0.1.3
[INFO] finished tweaking crates.io crate orange 0.1.3
[INFO] tweaked toml for crates.io crate orange 0.1.3 written to /workspace/builds/worker-14/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 8b90fa4e3ca254af55429e0ecc3e3f7bbb52cfa9c3d575b718c5f7e001c66c04
[INFO] running `Command { std: "docker" "start" "-a" "8b90fa4e3ca254af55429e0ecc3e3f7bbb52cfa9c3d575b718c5f7e001c66c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b90fa4e3ca254af55429e0ecc3e3f7bbb52cfa9c3d575b718c5f7e001c66c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b90fa4e3ca254af55429e0ecc3e3f7bbb52cfa9c3d575b718c5f7e001c66c04", kill_on_drop: false }`
[INFO] [stdout] 8b90fa4e3ca254af55429e0ecc3e3f7bbb52cfa9c3d575b718c5f7e001c66c04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f0965c0901ded50591444a1b3ac9ad1bbeb487e84b6d1b8f7fed223bb07494cb
[INFO] running `Command { std: "docker" "start" "-a" "f0965c0901ded50591444a1b3ac9ad1bbeb487e84b6d1b8f7fed223bb07494cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling orange v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(global_asm, llvm_asm, const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(global_asm, llvm_asm, const_generics)]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/gpio.rs:106:42
[INFO] [stdout]     |
[INFO] [stdout] 106 |             mmio::write(BANK_0_INTR_ACK, (1 << self.0));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/power.rs:15:32
[INFO] [stdout]    |
[INFO] [stdout] 15 |         mmio::write(POWER_REG, (1 << BIT_RESET));
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/flash.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |         sr_2 |= (1 << 1); // QE bit
[INFO] [stdout]    |                 ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read_volatile`, `write_volatile`
[INFO] [stdout]  --> src/harduart.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::ptr::{read_volatile, write_volatile};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `orange` due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f0965c0901ded50591444a1b3ac9ad1bbeb487e84b6d1b8f7fed223bb07494cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0965c0901ded50591444a1b3ac9ad1bbeb487e84b6d1b8f7fed223bb07494cb", kill_on_drop: false }`
[INFO] [stdout] f0965c0901ded50591444a1b3ac9ad1bbeb487e84b6d1b8f7fed223bb07494cb