[INFO] cloning repository https://github.com/fboerman/violetear
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fboerman/violetear" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffboerman%2Fvioletear", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffboerman%2Fvioletear'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4578f2e29c5969f681638ed47d59afa6089d88a4
[INFO] checking fboerman/violetear against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffboerman%2Fvioletear" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fboerman/violetear on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fboerman/violetear
[INFO] finished tweaking git repo https://github.com/fboerman/violetear
[INFO] tweaked toml for git repo https://github.com/fboerman/violetear written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fboerman/violetear 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.39
[INFO] [stderr]   Downloaded metadeps v1.1.2
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded log v0.3.8
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded zmq-sys v0.8.1
[INFO] [stderr]   Downloaded zmq v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a61a91a234e9c0bccacedf29cc7133e83aaa039e049e7d5ff18d94d3d8cae46c
[INFO] running `Command { std: "docker" "start" "-a" "a61a91a234e9c0bccacedf29cc7133e83aaa039e049e7d5ff18d94d3d8cae46c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a61a91a234e9c0bccacedf29cc7133e83aaa039e049e7d5ff18d94d3d8cae46c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61a91a234e9c0bccacedf29cc7133e83aaa039e049e7d5ff18d94d3d8cae46c", kill_on_drop: false }`
[INFO] [stdout] a61a91a234e9c0bccacedf29cc7133e83aaa039e049e7d5ff18d94d3d8cae46c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9126b098a5a07c0b9d35d0b313fff547ddd52310a4a47ba0f0a6dbd5041dd673
[INFO] running `Command { std: "docker" "start" "-a" "9126b098a5a07c0b9d35d0b313fff547ddd52310a4a47ba0f0a6dbd5041dd673", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]    Compiling zmq v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking violetear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:141:24
[INFO] [stdout]     |
[INFO] [stdout] 141 |                    why.description())
[INFO] [stdout]     |                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:179:75
[INFO] [stdout]     |
[INFO] [stdout] 179 |         Err(why) => panic!("Couldn't open layout.df config file: {}", why.description()),
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:141:24
[INFO] [stdout]     |
[INFO] [stdout] 141 |                    why.description())
[INFO] [stdout]     |                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:179:75
[INFO] [stdout]     |
[INFO] [stdout] 179 |         Err(why) => panic!("Couldn't open layout.df config file: {}", why.description()),
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 let mut edg = match findEdge(&mut edges, &from, &to) {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 |                 let mut edg = match findEdge(&mut edges, &from, &to) {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "9126b098a5a07c0b9d35d0b313fff547ddd52310a4a47ba0f0a6dbd5041dd673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9126b098a5a07c0b9d35d0b313fff547ddd52310a4a47ba0f0a6dbd5041dd673", kill_on_drop: false }`
[INFO] [stdout] 9126b098a5a07c0b9d35d0b313fff547ddd52310a4a47ba0f0a6dbd5041dd673