[INFO] cloning repository https://github.com/anayelii/rusty-titanic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anayelii/rusty-titanic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanayelii%2Frusty-titanic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanayelii%2Frusty-titanic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d048da8cdb5b72b05223cdd95dbfeeb512e0dfe
[INFO] checking anayelii/rusty-titanic against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanayelii%2Frusty-titanic" "/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/anayelii/rusty-titanic on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anayelii/rusty-titanic
[INFO] finished tweaking git repo https://github.com/anayelii/rusty-titanic
[INFO] tweaked toml for git repo https://github.com/anayelii/rusty-titanic written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/anayelii/rusty-titanic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c95dfc8200aa05c407a4553fe7707efe2233600e121a5d3d59735a27e891ab1
[INFO] running `Command { std: "docker" "start" "-a" "7c95dfc8200aa05c407a4553fe7707efe2233600e121a5d3d59735a27e891ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c95dfc8200aa05c407a4553fe7707efe2233600e121a5d3d59735a27e891ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c95dfc8200aa05c407a4553fe7707efe2233600e121a5d3d59735a27e891ab1", kill_on_drop: false }`
[INFO] [stdout] 7c95dfc8200aa05c407a4553fe7707efe2233600e121a5d3d59735a27e891ab1
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2025fff06c15593c5604c0daed6fe03914c7335d79581d811b7595d0daf46803
[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" "2025fff06c15593c5604c0daed6fe03914c7335d79581d811b7595d0daf46803", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-titanic v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:22:57
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Err(why) => panic!("Couldn't open {}: {}", display, Error::description(&why)),
[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/main.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Err(why) => panic!("couldn't read {} ", Error::description(&why)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings 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/main.rs:22:57
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Err(why) => panic!("Couldn't open {}: {}", display, Error::description(&why)),
[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/main.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Err(why) => panic!("couldn't read {} ", Error::description(&why)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2025fff06c15593c5604c0daed6fe03914c7335d79581d811b7595d0daf46803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2025fff06c15593c5604c0daed6fe03914c7335d79581d811b7595d0daf46803", kill_on_drop: false }`
[INFO] [stdout] 2025fff06c15593c5604c0daed6fe03914c7335d79581d811b7595d0daf46803