[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] checking sargeras55/rust-edu against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sargeras55/rust-edu on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-10/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 178e81d829edd0199e797101b137d711fa3853f54dc1f008d04430d633993bf2
[INFO] running `Command { std: "docker" "start" "-a" "178e81d829edd0199e797101b137d711fa3853f54dc1f008d04430d633993bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "178e81d829edd0199e797101b137d711fa3853f54dc1f008d04430d633993bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178e81d829edd0199e797101b137d711fa3853f54dc1f008d04430d633993bf2", kill_on_drop: false }`
[INFO] [stdout] 178e81d829edd0199e797101b137d711fa3853f54dc1f008d04430d633993bf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a724bd6da2b1541e22f545e868e509200a4d09a6ce614a1aa7f8ad32198610be
[INFO] running `Command { std: "docker" "start" "-a" "a724bd6da2b1541e22f545e868e509200a4d09a6ce614a1aa7f8ad32198610be", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_edu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Node` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     type N: fmt::Display;
[INFO] [stdout]    |             ------------ required by this bound in `Graph::N`
[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] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Node` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     type N: fmt::Display;
[INFO] [stdout]    |             ------------ required by this bound in `Graph::N`
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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] [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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a724bd6da2b1541e22f545e868e509200a4d09a6ce614a1aa7f8ad32198610be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a724bd6da2b1541e22f545e868e509200a4d09a6ce614a1aa7f8ad32198610be", kill_on_drop: false }`
[INFO] [stdout] a724bd6da2b1541e22f545e868e509200a4d09a6ce614a1aa7f8ad32198610be