[INFO] cloning repository https://github.com/sargeras55/rust-edu
[INFO] running `"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"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee2da3f47399b90560f66f09bdfd79b52b3648a0
[INFO] checking sargeras55/rust-edu against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsargeras55%2Frust-edu" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sargeras55/rust-edu on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/source/Cargo.toml
[INFO] crate git repo https://github.com/sargeras55/rust-edu already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8636f411c2dce76efcf3c85f1e87da3f24cf731c31c08e8e7826b9bfda497f7d
[INFO] running `"docker" "start" "-a" "8636f411c2dce76efcf3c85f1e87da3f24cf731c31c08e8e7826b9bfda497f7d"`
[INFO] [stderr]     Checking rust_edu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: `Node` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl Graph for MyGraph {
[INFO] [stderr]    |      ^^^^^ `Node` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `Node`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust_edu`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `Node` doesn't implement `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl Graph for MyGraph {
[INFO] [stderr]    |      ^^^^^ `Node` cannot be formatted with the default formatter
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Display` is not implemented for `Node`
[INFO] [stderr]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust_edu`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8636f411c2dce76efcf3c85f1e87da3f24cf731c31c08e8e7826b9bfda497f7d"`
[INFO] running `"docker" "rm" "-f" "8636f411c2dce76efcf3c85f1e87da3f24cf731c31c08e8e7826b9bfda497f7d"`
[INFO] [stdout] 8636f411c2dce76efcf3c85f1e87da3f24cf731c31c08e8e7826b9bfda497f7d