[INFO] fetching crate rfm9x 0.1.2...
[INFO] checking rfm9x-0.1.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate rfm9x 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rfm9x 0.1.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate rfm9x 0.1.2
[INFO] finished tweaking crates.io crate rfm9x 0.1.2
[INFO] tweaked toml for crates.io crate rfm9x 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rfm9x 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rppal v0.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f108b7a7e5054441c893cc9cd1bffc7098674fdabd171c139dcd581bad31195c
[INFO] running `Command { std: "docker" "start" "-a" "f108b7a7e5054441c893cc9cd1bffc7098674fdabd171c139dcd581bad31195c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f108b7a7e5054441c893cc9cd1bffc7098674fdabd171c139dcd581bad31195c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f108b7a7e5054441c893cc9cd1bffc7098674fdabd171c139dcd581bad31195c", kill_on_drop: false }`
[INFO] [stdout] f108b7a7e5054441c893cc9cd1bffc7098674fdabd171c139dcd581bad31195c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebc327a0ba288faae4e3fe6fd343bb6fa2697ce2e18ecb2c3f9a77a118f23b3d
[INFO] running `Command { std: "docker" "start" "-a" "ebc327a0ba288faae4e3fe6fd343bb6fa2697ce2e18ecb2c3f9a77a118f23b3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rfm9x v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `old_mode`
[INFO] [stdout]    --> src/rfm95.rs:196:2
[INFO] [stdout]     |
[INFO] [stdout] 196 |     old_mode: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `new_mode`
[INFO] [stdout]    --> src/rfm95.rs:197:2
[INFO] [stdout]     |
[INFO] [stdout] 197 |     new_mode: Mode,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `set_mode`
[INFO] [stdout]    --> src/rfm95.rs:198:2
[INFO] [stdout]     |
[INFO] [stdout] 198 |     set_mode: u8
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `old_mode`
[INFO] [stdout]    --> src/rfm95.rs:196:2
[INFO] [stdout]     |
[INFO] [stdout] 196 |     old_mode: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `new_mode`
[INFO] [stdout]    --> src/rfm95.rs:197:2
[INFO] [stdout]     |
[INFO] [stdout] 197 |     new_mode: Mode,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `set_mode`
[INFO] [stdout]    --> src/rfm95.rs:198:2
[INFO] [stdout]     |
[INFO] [stdout] 198 |     set_mode: u8
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "ebc327a0ba288faae4e3fe6fd343bb6fa2697ce2e18ecb2c3f9a77a118f23b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc327a0ba288faae4e3fe6fd343bb6fa2697ce2e18ecb2c3f9a77a118f23b3d", kill_on_drop: false }`
[INFO] [stdout] ebc327a0ba288faae4e3fe6fd343bb6fa2697ce2e18ecb2c3f9a77a118f23b3d