[INFO] cloning repository https://github.com/TheEmpty/mighty_mule_gate [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheEmpty/mighty_mule_gate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheEmpty%2Fmighty_mule_gate", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheEmpty%2Fmighty_mule_gate'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dc7e96f8e6a4fd37259f25441c736283437f55e7 [INFO] checking TheEmpty/mighty_mule_gate/dc7e96f8e6a4fd37259f25441c736283437f55e7 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheEmpty%2Fmighty_mule_gate" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/TheEmpty/mighty_mule_gate on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/TheEmpty/mighty_mule_gate [INFO] finished tweaking git repo https://github.com/TheEmpty/mighty_mule_gate [INFO] tweaked toml for git repo https://github.com/TheEmpty/mighty_mule_gate written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/TheEmpty/mighty_mule_gate already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 25 packages to latest compatible versions [INFO] [stderr] Adding aho-corasick v0.7.15 (latest: v1.1.3) [INFO] [stderr] Adding atty v0.2.14 [INFO] [stderr] Adding cfg-if v1.0.0 [INFO] [stderr] Adding env_logger v0.7.1 (latest: v0.11.5) [INFO] [stderr] Adding getrandom v0.2.15 [INFO] [stderr] Adding humantime v1.3.0 (latest: v2.1.0) [INFO] [stderr] Updating libc v0.2.70 -> v0.2.158 [INFO] [stderr] Adding pretty_env_logger v0.4.0 (latest: v0.5.0) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding regex v1.4.6 (latest: v1.10.6) [INFO] [stderr] Adding regex-syntax v0.6.29 (latest: v0.8.4) [INFO] [stderr] Adding termcolor v1.4.1 [INFO] [stderr] Adding uuid v0.8.2 (latest: v1.10.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding winapi-util v0.1.9 [INFO] [stderr] Adding windows-sys v0.59.0 [INFO] [stderr] Adding windows-targets v0.52.6 [INFO] [stderr] Adding windows_aarch64_gnullvm v0.52.6 [INFO] [stderr] Adding windows_aarch64_msvc v0.52.6 [INFO] [stderr] Adding windows_i686_gnu v0.52.6 [INFO] [stderr] Adding windows_i686_gnullvm v0.52.6 [INFO] [stderr] Adding windows_i686_msvc v0.52.6 [INFO] [stderr] Adding windows_x86_64_gnu v0.52.6 [INFO] [stderr] Adding windows_x86_64_gnullvm v0.52.6 [INFO] [stderr] Adding windows_x86_64_msvc v0.52.6 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded miow v0.3.4 [INFO] [stderr] Downloaded pin-project v0.4.17 [INFO] [stderr] Downloaded pin-project-lite v0.1.5 [INFO] [stderr] Downloaded error-chain v0.12.2 [INFO] [stderr] Downloaded cc v1.0.54 [INFO] [stderr] Downloaded serde_json v1.0.53 [INFO] [stderr] Downloaded gpio-cdev v0.2.0 [INFO] [stderr] Downloaded h2 v0.2.5 [INFO] [stderr] Downloaded pin-project-internal v0.4.17 [INFO] [stderr] Downloaded nix v0.11.1 [INFO] [stderr] Downloaded tokio v0.2.21 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6beee29b8d871971c2f8d6297e175e4126c04a8c94955a20e291d3c79668aa1f [INFO] running `Command { std: "docker" "start" "-a" "6beee29b8d871971c2f8d6297e175e4126c04a8c94955a20e291d3c79668aa1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6beee29b8d871971c2f8d6297e175e4126c04a8c94955a20e291d3c79668aa1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6beee29b8d871971c2f8d6297e175e4126c04a8c94955a20e291d3c79668aa1f", kill_on_drop: false }` [INFO] [stdout] 6beee29b8d871971c2f8d6297e175e4126c04a8c94955a20e291d3c79668aa1f [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0da20ac7603b811aec5847fc59babd6e4edfe9f4dbbdd0c9f42f2a7e60c3fd6 [INFO] running `Command { std: "docker" "start" "-a" "b0da20ac7603b811aec5847fc59babd6e4edfe9f4dbbdd0c9f42f2a7e60c3fd6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.15 [INFO] [stderr] Compiling syn v1.0.23 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Checking arc-swap v0.4.6 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Checking pin-project-lite v0.1.5 [INFO] [stderr] Checking gimli v0.21.0 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Checking futures-sink v0.3.5 [INFO] [stderr] Compiling nix v0.11.1 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking object v0.19.0 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking smallvec v1.4.0 [INFO] [stderr] Checking futures-task v0.3.5 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking http v0.2.1 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking unicode-normalization v0.1.12 [INFO] [stderr] Checking termcolor v1.4.1 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking futures-channel v0.3.5 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking tower-service v0.3.0 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Checking addr2line v0.12.1 [INFO] [stderr] Checking regex v1.4.6 [INFO] [stderr] Checking backtrace v0.3.48 [INFO] [stderr] Checking gpio-cdev v0.2.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking pretty_env_logger v0.4.0 [INFO] [stderr] Compiling pin-project-internal v0.4.17 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking tokio v0.2.21 [INFO] [stderr] Checking pin-project v0.4.17 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking h2 v0.2.5 [INFO] [stderr] Checking hyper v0.13.5 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking mighty_mule_gate v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | pin.set_value(1); [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] 61 | let _ = pin.set_value(1); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 63 | pin.set_value(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = pin.set_value(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | self.gpio_exit_relay.set_value(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 188 | let _ = self.gpio_exit_relay.set_value(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:221:13 [INFO] [stdout] | [INFO] [stdout] 221 | self.gpio_exit_relay.set_value(1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 221 | let _ = self.gpio_exit_relay.set_value(1); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | pin.set_value(1); [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] 61 | let _ = pin.set_value(1); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 63 | pin.set_value(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 63 | let _ = pin.set_value(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | self.gpio_exit_relay.set_value(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 188 | let _ = self.gpio_exit_relay.set_value(0); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/gate.rs:221:13 [INFO] [stdout] | [INFO] [stdout] 221 | self.gpio_exit_relay.set_value(1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 221 | let _ = self.gpio_exit_relay.set_value(1); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.27s [INFO] running `Command { std: "docker" "inspect" "b0da20ac7603b811aec5847fc59babd6e4edfe9f4dbbdd0c9f42f2a7e60c3fd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0da20ac7603b811aec5847fc59babd6e4edfe9f4dbbdd0c9f42f2a7e60c3fd6", kill_on_drop: false }` [INFO] [stdout] b0da20ac7603b811aec5847fc59babd6e4edfe9f4dbbdd0c9f42f2a7e60c3fd6