[INFO] updating cached repository https://github.com/modulitos/CtCI-rust
[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] 8bbaa49c3eca43a77cf1a2cea1b6f98071ad2c78
[INFO] checking modulitos/CtCI-rust against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/modulitos/CtCI-rust on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/modulitos/CtCI-rust
[INFO] finished tweaking git repo https://github.com/modulitos/CtCI-rust
[INFO] tweaked toml for git repo https://github.com/modulitos/CtCI-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/modulitos/CtCI-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+nightly-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] d4696c224b76819c88515d5a5ff7e8956c912e83143d26395f33345e03ed7ff0
[INFO] running `"docker" "start" "-a" "d4696c224b76819c88515d5a5ff7e8956c912e83143d26395f33345e03ed7ff0"`
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]     Checking rust-solutions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `ch3_p5_sort_stack`
[INFO] [stderr]    --> src/bin/ch3-p5_sort-stack.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / extern crate cracking;
[INFO] [stderr] 8   | | use cracking::Stack;
[INFO] [stderr] 9   | |
[INFO] [stderr] 10  | | pub trait SortStack<T> {
[INFO] [stderr] ...   |
[INFO] [stderr] 111 | |     }
[INFO] [stderr] 112 | | }
[INFO] [stderr]     | |_^ consider adding a `main` function to `src/bin/ch3-p5_sort-stack.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `rust-solutions`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0601]: `main` function not found in crate `ch2_p8_loop_detection`
[INFO] [stderr]    --> src/bin/ch2-p8_loop-detection.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | / extern crate cracking;
[INFO] [stderr] 10  | | use cracking::{HashedNode, Node, NodeRef, SinglyLinkedList as LinkedList};
[INFO] [stderr] 11  | |
[INFO] [stderr] 12  | | use std::collections::HashSet;
[INFO] [stderr] ...   |
[INFO] [stderr] 165 | |     }
[INFO] [stderr] 166 | | }
[INFO] [stderr]     | |_^ consider adding a `main` function to `src/bin/ch2-p8_loop-detection.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `rust-solutions`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0601]: `main` function not found in crate `ch4_p11_random_node`
[INFO] [stderr]    --> src/bin/ch4-p11_random-node.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / use rand::{thread_rng, Rng};
[INFO] [stderr] 8   | | use std::fmt;
[INFO] [stderr] 9   | |
[INFO] [stderr] 10  | | type BareTree<T> = Box<Node<T>>;
[INFO] [stderr] ...   |
[INFO] [stderr] 204 | |     assert!((1..10).contains(&v));
[INFO] [stderr] 205 | | }
[INFO] [stderr]     | |_^ consider adding a `main` function to `src/bin/ch4-p11_random-node.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `rust-solutions`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d4696c224b76819c88515d5a5ff7e8956c912e83143d26395f33345e03ed7ff0"`
[INFO] running `"docker" "rm" "-f" "d4696c224b76819c88515d5a5ff7e8956c912e83143d26395f33345e03ed7ff0"`
[INFO] [stdout] d4696c224b76819c88515d5a5ff7e8956c912e83143d26395f33345e03ed7ff0