[INFO] cloning repository https://github.com/sargeras55/rust-edu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sargeras55/rust-edu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee2da3f47399b90560f66f09bdfd79b52b3648a0
[INFO] testing sargeras55/rust-edu against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sargeras55/rust-edu on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sargeras55/rust-edu
[INFO] finished tweaking git repo https://github.com/sargeras55/rust-edu
[INFO] tweaked toml for git repo https://github.com/sargeras55/rust-edu written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/sargeras55/rust-edu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 75cebf7bd2cc09401c747d382996850a87143c59bea217ccd1753eeaf2f19a30
[INFO] running `Command { std: "docker" "start" "-a" "75cebf7bd2cc09401c747d382996850a87143c59bea217ccd1753eeaf2f19a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75cebf7bd2cc09401c747d382996850a87143c59bea217ccd1753eeaf2f19a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75cebf7bd2cc09401c747d382996850a87143c59bea217ccd1753eeaf2f19a30", kill_on_drop: false }`
[INFO] [stdout] 75cebf7bd2cc09401c747d382996850a87143c59bea217ccd1753eeaf2f19a30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cfd325502a2236a712dcf036882bdf8682f0211a21c411068be931181f0906a
[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" "4cfd325502a2236a712dcf036882bdf8682f0211a21c411068be931181f0906a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_edu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Node` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     type N = Node;
[INFO] [stdout]    |              ^^^^ `Node` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Node`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] note: required by a bound in `Graph::N`
[INFO] [stdout]   --> src/main.rs:5:13
[INFO] [stdout]    |
[INFO] [stdout] 5  |     type N: fmt::Display;
[INFO] [stdout]    |             ^^^^^^^^^^^^ required by this bound in `Graph::N`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_edu` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4cfd325502a2236a712dcf036882bdf8682f0211a21c411068be931181f0906a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfd325502a2236a712dcf036882bdf8682f0211a21c411068be931181f0906a", kill_on_drop: false }`
[INFO] [stdout] 4cfd325502a2236a712dcf036882bdf8682f0211a21c411068be931181f0906a