[INFO] cloning repository https://github.com/emberian/homie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emberian/homie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femberian%2Fhomie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femberian%2Fhomie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebf6e4d8fb98b1a76e14666eeb400a1fd1e2dba8
[INFO] checking emberian/homie against 65b20a97de33e9e59992793a144aef2950c48c76 for pr-154715
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femberian%2Fhomie" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/emberian/homie
[INFO] finished tweaking git repo https://github.com/emberian/homie
[INFO] tweaked toml for git repo https://github.com/emberian/homie written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emberian/homie on toolchain 65b20a97de33e9e59992793a144aef2950c48c76
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emberian/homie 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" "+65b20a97de33e9e59992793a144aef2950c48c76" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded ufmt-macros v0.2.0
[INFO] [stderr]   Downloaded avr-device-macros v0.3.4
[INFO] [stderr]   Downloaded ufmt v0.1.2
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded syn v1.0.99
[INFO] [stderr]   Downloaded avr-device v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315
[INFO] running `Command { std: "docker" "start" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315", 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" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315" "/opt/rustwide/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315", 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" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315" "/opt/rustwide/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling avr-device v0.3.4
[INFO] [stderr]    Compiling avr-hal-generic v0.1.0 (https://github.com/Rahix/avr-hal.git#4cbb163d)
[INFO] [stderr]    Compiling ufmt-macros v0.2.0
[INFO] [stderr]    Compiling avr-device-macros v0.3.4
[INFO] [stderr]     Checking ufmt v0.1.2
[INFO] [stderr]     Checking atmega-hal v0.1.0 (https://github.com/Rahix/avr-hal.git#4cbb163d)
[INFO] [stderr]     Checking gougoue v0.1.0 (/opt/rustwide/workdir/gougoue)
[INFO] [stderr]     Checking arduino-hal v0.1.0 (https://github.com/Rahix/avr-hal.git#4cbb163d)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> gougoue/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> gougoue/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stdout]    --> gougoue/src/lib.rs:134:1
[INFO] [stdout]     |
[INFO] [stdout] 134 | / fn eh_personality() -> ! {
[INFO] [stdout] 135 | |     loop {}
[INFO] [stdout] 136 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]     = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/65b20a97de33e9e59992793a144aef2950c48c76/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2f7e17dbfe663611.rmeta
[INFO] [stdout]     = note: second definition in the local crate (`gougoue`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gougoue` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> gougoue/src/periphs.rs:24:29
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn set_color(&self, r: bool, g: bool, b: bool) {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> gougoue/src/periphs.rs:24:38
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn set_color(&self, r: bool, g: bool, b: bool) {
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> gougoue/src/periphs.rs:24:47
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn set_color(&self, r: bool, g: bool, b: bool) {
[INFO] [stdout]    |                                               ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info`
[INFO] [stdout]    --> gougoue/src/lib.rs:139:10
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn panic(info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]     |          ^^^^ help: if this is intentional, prefix it with an underscore: `_info`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `display_buffer` is never read
[INFO] [stdout]   --> gougoue/src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Gougoue {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 32 |     display_buffer: Option<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `init` is never used
[INFO] [stdout]  --> gougoue/src/periphs.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl SSD1306 {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 8 |     unsafe fn init() {
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `Rx` should have an upper case name
[INFO] [stdout]   --> gougoue/src/lib.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |         const Rx = 16;
[INFO] [stdout]    |               ^^ help: convert the identifier to upper case (notice the capitalization): `RX`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315", kill_on_drop: false }`
[INFO] [stdout] 3187bff440b462cd52620072c48028aa7cf66df7a317144d6c38c623075c5315
