[INFO] fetching crate mcp4725-rs 0.1.1... [INFO] checking mcp4725-rs-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate mcp4725-rs 0.1.1 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate mcp4725-rs 0.1.1 [INFO] finished tweaking crates.io crate mcp4725-rs 0.1.1 [INFO] tweaked toml for crates.io crate mcp4725-rs 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate mcp4725-rs 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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 23 packages to latest compatible versions [INFO] [stderr] Adding embedded-hal v0.2.7 (available: v1.0.0) [INFO] [stderr] Adding linux-embedded-hal v0.2.2 (available: v0.4.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded linux-embedded-hal v0.2.2 [INFO] [stderr] Downloaded spidev v0.3.0 [INFO] [stderr] Downloaded i2cdev v0.4.4 [INFO] [stderr] Downloaded nix v0.6.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2d69d9f1c8cedce2d304e0d95965b5804228f93ce07c0c102cad2347007f9a7f [INFO] running `Command { std: "docker" "start" "-a" "2d69d9f1c8cedce2d304e0d95965b5804228f93ce07c0c102cad2347007f9a7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2d69d9f1c8cedce2d304e0d95965b5804228f93ce07c0c102cad2347007f9a7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d69d9f1c8cedce2d304e0d95965b5804228f93ce07c0c102cad2347007f9a7f", kill_on_drop: false }` [INFO] [stdout] 2d69d9f1c8cedce2d304e0d95965b5804228f93ce07c0c102cad2347007f9a7f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a430ce8af56c958d5181ed20a417b0361db717922310cb4c3d26f9dea9fbbbdf [INFO] running `Command { std: "docker" "start" "-a" "a430ce8af56c958d5181ed20a417b0361db717922310cb4c3d26f9dea9fbbbdf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.175 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling semver v1.0.26 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking nb v1.1.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking bitflags v0.3.3 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling rustc_version v0.4.1 [INFO] [stderr] Checking mcp4725-rs v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `delay` is never read [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct MCP4725 { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 29 | delay: D, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MCP4725` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking spidev v0.3.0 [INFO] [stderr] Checking i2cdev v0.4.4 [INFO] [stderr] Checking sysfs_gpio v0.5.4 [INFO] [stderr] Checking linux-embedded-hal v0.2.2 [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/linux_raspi.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | dac.set_dac_value(dac_code); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 19 | let _ = dac.set_dac_value(dac_code); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `delay` is never read [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct MCP4725 { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 29 | delay: D, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MCP4725` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.85s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.4.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "a430ce8af56c958d5181ed20a417b0361db717922310cb4c3d26f9dea9fbbbdf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a430ce8af56c958d5181ed20a417b0361db717922310cb4c3d26f9dea9fbbbdf", kill_on_drop: false }` [INFO] [stdout] a430ce8af56c958d5181ed20a417b0361db717922310cb4c3d26f9dea9fbbbdf