[INFO] fetching crate max7301 0.3.0...
[INFO] checking max7301-0.3.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate max7301 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate max7301 0.3.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate max7301 0.3.0
[INFO] finished tweaking crates.io crate max7301 0.3.0
[INFO] tweaked toml for crates.io crate max7301 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 62 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v0.1.8 (available: v1.4.0)
[INFO] [stderr]       Adding bare-metal v0.2.5 (available: v1.0.0)
[INFO] [stderr]       Adding bit-set v0.5.3 (available: v0.8.0)
[INFO] [stderr]       Adding bit-vec v0.6.3 (available: v0.8.0)
[INFO] [stderr]       Adding bitfield v0.13.2 (available: v0.17.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding cloudabi v0.0.3 (available: v0.1.0)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding nb v0.1.3 (available: v1.1.0)
[INFO] [stderr]       Adding proptest v0.9.6 (available: v1.5.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.1.1 (available: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.1.0 (available: v0.3.2)
[INFO] [stderr]       Adding rand_isaac v0.1.1 (available: v0.3.0)
[INFO] [stderr]       Adding rand_jitter v0.1.4 (available: v0.4.0)
[INFO] [stderr]       Adding rand_os v0.1.3 (available: v0.2.2)
[INFO] [stderr]       Adding rand_pcg v0.1.2 (available: v0.3.1)
[INFO] [stderr]       Adding rand_xorshift v0.1.1 (available: v0.3.0)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (available: v0.8.4)
[INFO] [stderr]       Adding rustc_version v0.2.3 (available: v0.4.1)
[INFO] [stderr]       Adding rusty-fork v0.2.2 (available: v0.3.0)
[INFO] [stderr]       Adding semver v0.9.0 (available: v1.0.23)
[INFO] [stderr]       Adding semver-parser v0.7.0 (available: v0.10.2)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfe947c2c49f0bb5bcfc885e33655f1bf9cb5c02639491f564975d2298e72479
[INFO] running `Command { std: "docker" "start" "-a" "bfe947c2c49f0bb5bcfc885e33655f1bf9cb5c02639491f564975d2298e72479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfe947c2c49f0bb5bcfc885e33655f1bf9cb5c02639491f564975d2298e72479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe947c2c49f0bb5bcfc885e33655f1bf9cb5c02639491f564975d2298e72479", kill_on_drop: false }`
[INFO] [stdout] bfe947c2c49f0bb5bcfc885e33655f1bf9cb5c02639491f564975d2298e72479
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef45186537bf06195e30fc5a7d7cebb4cf867a84231a4b77c0249c391992ad2f
[INFO] running `Command { std: "docker" "start" "-a" "ef45186537bf06195e30fc5a7d7cebb4cf867a84231a4b77c0249c391992ad2f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking max7301 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> src/registers.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         RegisterAddress::from(Register::BankConfig(7));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let _ = RegisterAddress::from(Register::BankConfig(7));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/registers.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         RegisterAddress::from(Register::SinglePort(37));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let _ = RegisterAddress::from(Register::SinglePort(37));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/registers.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         RegisterAddress::from(Register::PortRange(37));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let _ = RegisterAddress::from(Register::PortRange(37));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "ef45186537bf06195e30fc5a7d7cebb4cf867a84231a4b77c0249c391992ad2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef45186537bf06195e30fc5a7d7cebb4cf867a84231a4b77c0249c391992ad2f", kill_on_drop: false }`
[INFO] [stdout] ef45186537bf06195e30fc5a7d7cebb4cf867a84231a4b77c0249c391992ad2f