[INFO] cloning repository https://github.com/mauriciv/r8080
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mauriciv/r8080" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmauriciv%2Fr8080", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmauriciv%2Fr8080'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 460a5f5a70d3801f4394923df1996a7b37edd4e8
[INFO] checking mauriciv/r8080 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmauriciv%2Fr8080" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mauriciv/r8080 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mauriciv/r8080
[INFO] finished tweaking git repo https://github.com/mauriciv/r8080
[INFO] tweaked toml for git repo https://github.com/mauriciv/r8080 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/mauriciv/r8080 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a781405277c96ba063ea348b7ae57f63581896ed28f0d47766b8ecdffd2b5a9d
[INFO] running `Command { std: "docker" "start" "-a" "a781405277c96ba063ea348b7ae57f63581896ed28f0d47766b8ecdffd2b5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a781405277c96ba063ea348b7ae57f63581896ed28f0d47766b8ecdffd2b5a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a781405277c96ba063ea348b7ae57f63581896ed28f0d47766b8ecdffd2b5a9d", kill_on_drop: false }`
[INFO] [stdout] a781405277c96ba063ea348b7ae57f63581896ed28f0d47766b8ecdffd2b5a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca263fc7e042c9cfdd673f03e3d7a7c48395a30cf33d081e575ddefd7d58ad7b
[INFO] running `Command { std: "docker" "start" "-a" "ca263fc7e042c9cfdd673f03e3d7a7c48395a30cf33d081e575ddefd7d58ad7b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking r8080 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn run(config: Config) -> Result<(String), Box<dyn Error>> {
[INFO] [stdout]    |                                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 - pub fn run(config: Config) -> Result<(String), Box<dyn Error>> {
[INFO] [stdout] 27 + pub fn run(config: Config) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn run(config: Config) -> Result<(String), Box<dyn Error>> {
[INFO] [stdout]    |                                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 - pub fn run(config: Config) -> Result<(String), Box<dyn Error>> {
[INFO] [stdout] 27 + pub fn run(config: Config) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:137:71
[INFO] [stdout]     |
[INFO] [stdout] 137 |             Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]     |                                                                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:142:61
[INFO] [stdout]     |
[INFO] [stdout] 142 |             panic!("couldn't write to {}: {}", display, why.description());
[INFO] [stdout]     |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.09s
[INFO] running `Command { std: "docker" "inspect" "ca263fc7e042c9cfdd673f03e3d7a7c48395a30cf33d081e575ddefd7d58ad7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca263fc7e042c9cfdd673f03e3d7a7c48395a30cf33d081e575ddefd7d58ad7b", kill_on_drop: false }`
[INFO] [stdout] ca263fc7e042c9cfdd673f03e3d7a7c48395a30cf33d081e575ddefd7d58ad7b