[INFO] cloning repository https://github.com/ChristoffenOSWorks/PandaCat-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChristoffenOSWorks/PandaCat-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristoffenOSWorks%2FPandaCat-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristoffenOSWorks%2FPandaCat-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2d98c7772108d732b9dc017a671339efe176bf2
[INFO] checking ChristoffenOSWorks/PandaCat-Rust against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristoffenOSWorks%2FPandaCat-Rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChristoffenOSWorks/PandaCat-Rust on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChristoffenOSWorks/PandaCat-Rust
[INFO] finished tweaking git repo https://github.com/ChristoffenOSWorks/PandaCat-Rust
[INFO] tweaked toml for git repo https://github.com/ChristoffenOSWorks/PandaCat-Rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ChristoffenOSWorks/PandaCat-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.22
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48f8bfe72cc9af1051c541af77a8ddb68243cf41ca451bee46161051cfc43994
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "48f8bfe72cc9af1051c541af77a8ddb68243cf41ca451bee46161051cfc43994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48f8bfe72cc9af1051c541af77a8ddb68243cf41ca451bee46161051cfc43994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48f8bfe72cc9af1051c541af77a8ddb68243cf41ca451bee46161051cfc43994", kill_on_drop: false }`
[INFO] [stdout] 48f8bfe72cc9af1051c541af77a8ddb68243cf41ca451bee46161051cfc43994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f358420838f9c69e0f53ec2bc7c352f093d1dc68ac9b836a2bd6522346d82ce2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f358420838f9c69e0f53ec2bc7c352f093d1dc68ac9b836a2bd6522346d82ce2", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking toCairo v0.1.0 (/opt/rustwide/workdir/toCairo)
[INFO] [stdout] warning: crate `toCairo` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `to_cairo`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking rgb_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `readline`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             let readline = rl.readline(">> ");
[INFO] [stdout]   |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_readline`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `readline`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             let readline = rl.readline(">> ");
[INFO] [stdout]   |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_readline`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "f358420838f9c69e0f53ec2bc7c352f093d1dc68ac9b836a2bd6522346d82ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f358420838f9c69e0f53ec2bc7c352f093d1dc68ac9b836a2bd6522346d82ce2", kill_on_drop: false }`
[INFO] [stdout] f358420838f9c69e0f53ec2bc7c352f093d1dc68ac9b836a2bd6522346d82ce2