[INFO] updating cached repository https://github.com/joelverhagen/euler
[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] c480377a8b30f8f719edebdc6ff96e69b47d4638
[INFO] checking joelverhagen/euler against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelverhagen%2Feuler" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joelverhagen/euler on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/joelverhagen/euler
[INFO] finished tweaking git repo https://github.com/joelverhagen/euler
[INFO] tweaked toml for git repo https://github.com/joelverhagen/euler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/joelverhagen/euler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=allow" "-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" "+beta-2019-10-27" "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] 319bc9e8864b61dc96017e1efd4f21b8179d8e87e1682046018af78852c241b4
[INFO] running `"docker" "start" "-a" "319bc9e8864b61dc96017e1efd4f21b8179d8e87e1682046018af78852c241b4"`
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking projecteuler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: type `support::graph::model::Successors<'_, N, E>` is private
[INFO] [stderr]   --> src/support/graph/search.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for successor in graph.successors(node_index) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::graph::model::Successors<'_, N, i32>` is private
[INFO] [stderr]   --> src/support/graph/search.rs:89:22
[INFO] [stderr]    |
[INFO] [stderr] 89 |             for s in graph.successors(u) {
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<i32>` is private
[INFO] [stderr]  --> src/problems/problem4.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let digits: Vec<u8> = i.iter_digits().collect();
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<num::BigInt>` is private
[INFO] [stderr]   --> src/problems/problem16.rs:8:2
[INFO] [stderr]    |
[INFO] [stderr] 8  |       pow(BigInt::from_u64(2).unwrap(), 1000)
[INFO] [stderr]    |  _____^
[INFO] [stderr] 9  | |         .iter_digits()
[INFO] [stderr] 10 | |         .map(|d| d as u64)
[INFO] [stderr] 11 | |         .fold(0, |s, v| s + v)
[INFO] [stderr]    | |______________________________^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]   --> src/problems/problem17.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut digits: Vec<u8> = n.iter_digits().collect();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<num::BigInt>` is private
[INFO] [stderr]  --> src/problems/problem20.rs:6:2
[INFO] [stderr]   |
[INFO] [stderr] 6 |     factorial(100).iter_digits().map(|d| d as i32).fold(0, |s, v| s + v)
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]  --> src/problems/problem30.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if new_max.iter_digits().count() < digits {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]   --> src/problems/problem30.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let maybe_i = i.iter_digits().fold(0, |s, d| s + pow(d as u64, p));
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `projecteuler`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: type `support::graph::model::Successors<'_, N, E>` is private
[INFO] [stderr]   --> src/support/graph/search.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for successor in graph.successors(node_index) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::graph::model::Successors<'_, N, i32>` is private
[INFO] [stderr]   --> src/support/graph/search.rs:89:22
[INFO] [stderr]    |
[INFO] [stderr] 89 |             for s in graph.successors(u) {
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<i32>` is private
[INFO] [stderr]  --> src/problems/problem4.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let digits: Vec<u8> = i.iter_digits().collect();
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<num::BigInt>` is private
[INFO] [stderr]   --> src/problems/problem16.rs:8:2
[INFO] [stderr]    |
[INFO] [stderr] 8  |       pow(BigInt::from_u64(2).unwrap(), 1000)
[INFO] [stderr]    |  _____^
[INFO] [stderr] 9  | |         .iter_digits()
[INFO] [stderr] 10 | |         .map(|d| d as u64)
[INFO] [stderr] 11 | |         .fold(0, |s, v| s + v)
[INFO] [stderr]    | |______________________________^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]   --> src/problems/problem17.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let mut digits: Vec<u8> = n.iter_digits().collect();
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<num::BigInt>` is private
[INFO] [stderr]  --> src/problems/problem20.rs:6:2
[INFO] [stderr]   |
[INFO] [stderr] 6 |     factorial(100).iter_digits().map(|d| d as i32).fold(0, |s, v| s + v)
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]  --> src/problems/problem30.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if new_max.iter_digits().count() < digits {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: type `support::digits::IntegerDigits<u64>` is private
[INFO] [stderr]   --> src/problems/problem30.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let maybe_i = i.iter_digits().fold(0, |s, d| s + pow(d as u64, p));
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `projecteuler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "319bc9e8864b61dc96017e1efd4f21b8179d8e87e1682046018af78852c241b4"`
[INFO] running `"docker" "rm" "-f" "319bc9e8864b61dc96017e1efd4f21b8179d8e87e1682046018af78852c241b4"`
[INFO] [stdout] 319bc9e8864b61dc96017e1efd4f21b8179d8e87e1682046018af78852c241b4