[INFO] fetching crate embedded-hal-aht2x 0.1.0...
[INFO] checking embedded-hal-aht2x-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate embedded-hal-aht2x 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate embedded-hal-aht2x 0.1.0
[INFO] finished tweaking crates.io crate embedded-hal-aht2x 0.1.0
[INFO] tweaked toml for crates.io crate embedded-hal-aht2x 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate embedded-hal-aht2x 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding defmt v0.3.100 (available: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1c8dc1accab9e3be097aa463539e481dfbdb3a5c7e1d9f4e2392ef86efad08c
[INFO] running `Command { std: "docker" "start" "-a" "c1c8dc1accab9e3be097aa463539e481dfbdb3a5c7e1d9f4e2392ef86efad08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1c8dc1accab9e3be097aa463539e481dfbdb3a5c7e1d9f4e2392ef86efad08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c8dc1accab9e3be097aa463539e481dfbdb3a5c7e1d9f4e2392ef86efad08c", kill_on_drop: false }`
[INFO] [stdout] c1c8dc1accab9e3be097aa463539e481dfbdb3a5c7e1d9f4e2392ef86efad08c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36d8d6633d5a19d8d6b5165ea734eb5a584165b80c363da193f3f766cae7a538
[INFO] running `Command { std: "docker" "start" "-a" "36d8d6633d5a19d8d6b5165ea734eb5a584165b80c363da193f3f766cae7a538", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]     Checking embedded-hal-aht2x v0.1.0 (/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(int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hum`
[INFO] [stdout]    --> src/lib.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let hum = HumidityData::from_bytes(resp[..3].try_into().unwrap());
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_hum`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embedded-hal-aht2x` (lib) due to 1 previous error
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/lib.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let temp = TemperatureData::from_bytes(resp[3..].try_into().unwrap());
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embedded-hal-aht2x` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "36d8d6633d5a19d8d6b5165ea734eb5a584165b80c363da193f3f766cae7a538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d8d6633d5a19d8d6b5165ea734eb5a584165b80c363da193f3f766cae7a538", kill_on_drop: false }`
[INFO] [stdout] 36d8d6633d5a19d8d6b5165ea734eb5a584165b80c363da193f3f766cae7a538
