[INFO] cloning repository https://github.com/Will-Banksy/done_rpi_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Will-Banksy/done_rpi_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWill-Banksy%2Fdone_rpi_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWill-Banksy%2Fdone_rpi_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bded286fbe67de0675a9d8d6649b7621debe1a7e
[INFO] checking Will-Banksy/done_rpi_client against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWill-Banksy%2Fdone_rpi_client" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Will-Banksy/done_rpi_client
[INFO] finished tweaking git repo https://github.com/Will-Banksy/done_rpi_client
[INFO] tweaked toml for git repo https://github.com/Will-Banksy/done_rpi_client written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Will-Banksy/done_rpi_client on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Will-Banksy/done_rpi_client 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `done_rpi_client` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-7-tc1/source/target/.../done_rpi_client
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `done-rpi-client`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 - name = "done_rpi_client"
[INFO] [stderr] 23 + name = "done-rpi-client"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `done-rpi-client`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 ~ version = "0.1.0"
[INFO] [stderr] 25 + [[bin]]
[INFO] [stderr] 26 + name = "done-rpi-client"
[INFO] [stderr] 27 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `done_rpi_client` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.21.0
[INFO] [stderr]   Downloaded toml v0.8.8
[INFO] [stderr]   Downloaded serde_derive v1.0.193
[INFO] [stderr]   Downloaded winnow v0.5.28
[INFO] [stderr]   Downloaded serde v1.0.193
[INFO] [stderr]   Downloaded display-interface-i2c v0.4.0
[INFO] [stderr]   Downloaded webpki-roots v0.25.3
[INFO] [stderr]   Downloaded az v1.2.1
[INFO] [stderr]   Downloaded h2 v0.3.22
[INFO] [stderr]   Downloaded serde_spanned v0.6.4
[INFO] [stderr]   Downloaded spin_sleep v1.1.1
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-rc.2
[INFO] [stderr]   Downloaded display-interface v0.4.1
[INFO] [stderr]   Downloaded byte-slice-cast v0.3.5
[INFO] [stderr]   Downloaded syn v2.0.41
[INFO] [stderr]   Downloaded unicode-bidi v0.3.14
[INFO] [stderr]   Downloaded rustls v0.21.9
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] [stderr]   Downloaded micromath v2.1.0
[INFO] [stderr]   Downloaded display-interface-spi v0.4.1
[INFO] [stderr]   Downloaded embedded-graphics v0.8.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.39
[INFO] [stderr]   Downloaded ssd1306 v0.8.4
[INFO] [stderr]   Downloaded js-sys v0.3.66
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0-rc.2
[INFO] [stderr]   Downloaded rppal v0.16.0
[INFO] [stderr]   Downloaded web-sys v0.3.66
[INFO] [stderr]   Downloaded getrandom v0.2.11
[INFO] [stderr]   Downloaded embedded-graphics-core v0.4.0
[INFO] [stderr]   Downloaded tokio v1.35.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0
[INFO] running `Command { std: "docker" "start" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `done_rpi_client` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../done_rpi_client
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `done-rpi-client`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 - name = "done_rpi_client"
[INFO] [stderr] 23 + name = "done-rpi-client"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `done-rpi-client`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 ~ version = "0.1.0"
[INFO] [stderr] 25 + [[bin]]
[INFO] [stderr] 26 + name = "done-rpi-client"
[INFO] [stderr] 27 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `done_rpi_client` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking display-interface v0.4.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking embedded-hal v1.0.0-rc.2
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking winnow v0.5.28
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0-rc.2
[INFO] [stderr]     Checking display-interface-i2c v0.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking display-interface-spi v0.4.1
[INFO] [stderr]     Checking spin_sleep v1.1.1
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking micromath v2.1.0
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking webpki-roots v0.25.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking rppal v0.16.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking tokio v1.35.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking embedded-graphics-core v0.4.0
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]     Checking embedded-graphics v0.8.1
[INFO] [stderr]     Checking ssd1306 v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking toml v0.8.8
[INFO] [stderr]     Checking done_rpi_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ReqwestError(reqwest::Error),
[INFO] [stdout]   |     ------------ ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     ReqwestError(reqwest::Error),
[INFO] [stdout] 5 +     ReqwestError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 |     JsonDeserializationError(serde_json::Error),
[INFO] [stdout]   |     ------------------------ ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     JsonDeserializationError(serde_json::Error),
[INFO] [stdout] 6 +     JsonDeserializationError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     TomlDeserializationError(toml::de::Error),
[INFO] [stdout]   |     ------------------------ ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     TomlDeserializationError(toml::de::Error),
[INFO] [stdout] 7 +     TomlDeserializationError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IoError(io::Error),
[INFO] [stdout]   |     ------- ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     IoError(io::Error),
[INFO] [stdout] 9 +     IoError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Errno(i32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     Errno(i32),
[INFO] [stdout] 10 +     Errno(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidArgument(String)
[INFO] [stdout]    |     --------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     InvalidArgument(String)
[INFO] [stdout] 11 +     InvalidArgument(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ReqwestError(reqwest::Error),
[INFO] [stdout]   |     ------------ ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     ReqwestError(reqwest::Error),
[INFO] [stdout] 5 +     ReqwestError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 |     JsonDeserializationError(serde_json::Error),
[INFO] [stdout]   |     ------------------------ ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 -     JsonDeserializationError(serde_json::Error),
[INFO] [stdout] 6 +     JsonDeserializationError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     TomlDeserializationError(toml::de::Error),
[INFO] [stdout]   |     ------------------------ ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     TomlDeserializationError(toml::de::Error),
[INFO] [stdout] 7 +     TomlDeserializationError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/error.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IoError(io::Error),
[INFO] [stdout]   |     ------- ^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     IoError(io::Error),
[INFO] [stdout] 9 +     IoError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Errno(i32),
[INFO] [stdout]    |     ----- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     Errno(i32),
[INFO] [stdout] 10 +     Errno(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/error.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidArgument(String)
[INFO] [stdout]    |     --------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     InvalidArgument(String)
[INFO] [stdout] 11 +     InvalidArgument(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.32s
[INFO] running `Command { std: "docker" "inspect" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0", kill_on_drop: false }`
[INFO] [stdout] c8802b2eecccc453aff28133b42a6e3428814c3a0b342b15f22bbe4a9ed3e8b0
