[INFO] cloning repository https://github.com/maminej/rust_sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maminej/rust_sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaminej%2Frust_sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaminej%2Frust_sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a9471821e2972892291e6eb4028b67cd8b7518e
[INFO] checking maminej/rust_sandbox against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaminej%2Frust_sandbox" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maminej/rust_sandbox on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maminej/rust_sandbox
[INFO] finished tweaking git repo https://github.com/maminej/rust_sandbox
[INFO] tweaked toml for git repo https://github.com/maminej/rust_sandbox written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/maminej/rust_sandbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 603bc53df85d303f2567c345962bd1a513b1f0e315578eee1f27db215d526e83
[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" "603bc53df85d303f2567c345962bd1a513b1f0e315578eee1f27db215d526e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "603bc53df85d303f2567c345962bd1a513b1f0e315578eee1f27db215d526e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "603bc53df85d303f2567c345962bd1a513b1f0e315578eee1f27db215d526e83", kill_on_drop: false }`
[INFO] [stdout] 603bc53df85d303f2567c345962bd1a513b1f0e315578eee1f27db215d526e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f250df26acfe52d28d4b94e4afe1d186c13c86d79564627fa3f2f90699114a
[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" "93f250df26acfe52d28d4b94e4afe1d186c13c86d79564627fa3f2f90699114a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Color_t` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Color_t (u8, u8, u8);
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to upper camel case: `ColorT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Color_t` should have an upper camel case name
[INFO] [stdout]   --> src/structs.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Color_t (u8, u8, u8);
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to upper camel case: `ColorT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` 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 0.33s
[INFO] running `Command { std: "docker" "inspect" "93f250df26acfe52d28d4b94e4afe1d186c13c86d79564627fa3f2f90699114a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f250df26acfe52d28d4b94e4afe1d186c13c86d79564627fa3f2f90699114a", kill_on_drop: false }`
[INFO] [stdout] 93f250df26acfe52d28d4b94e4afe1d186c13c86d79564627fa3f2f90699114a