[INFO] updating cached repository https://github.com/sammartin51/gamma
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b9af73f8d8b518784dd9ca0b4a73b61eee9e040
[INFO] checking sammartin51/gamma against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsammartin51%2Fgamma" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sammartin51/gamma on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sammartin51/gamma
[INFO] finished tweaking git repo https://github.com/sammartin51/gamma
[INFO] tweaked toml for git repo https://github.com/sammartin51/gamma written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/sammartin51/gamma already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 209ad42d8519139b7094052608f7f5eb71b0ef097e3371d82ce82b853bb1424c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "209ad42d8519139b7094052608f7f5eb71b0ef097e3371d82ce82b853bb1424c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking text_io v0.1.6
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking chrono v0.3.1
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |             _ => println!("try again")
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^ expected struct `tree::NodeZipper`, found `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `tree::NodeZipper<task::Task>`
[INFO] [stderr]            found unit type `()`
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |             _ => println!("try again")
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^ expected struct `tree::NodeZipper`, found `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `tree::NodeZipper<task::Task>`
[INFO] [stderr]            found unit type `()`
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "209ad42d8519139b7094052608f7f5eb71b0ef097e3371d82ce82b853bb1424c"`
[INFO] running `"docker" "rm" "-f" "209ad42d8519139b7094052608f7f5eb71b0ef097e3371d82ce82b853bb1424c"`
[INFO] [stdout] 209ad42d8519139b7094052608f7f5eb71b0ef097e3371d82ce82b853bb1424c