[INFO] updating cached repository baszalmstra/adventofcode2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/baszalmstra/adventofcode2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/baszalmstra/adventofcode2017" "work/ex/beta-1.38-1/sources/1.37.0/gh/baszalmstra/adventofcode2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/baszalmstra/adventofcode2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/baszalmstra/adventofcode2017" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/baszalmstra/adventofcode2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/baszalmstra/adventofcode2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f7543d8d8bd746584b9a79e26fa2a04eb1e994d
[INFO] sha for GitHub repo baszalmstra/adventofcode2017: 7f7543d8d8bd746584b9a79e26fa2a04eb1e994d
[INFO] validating manifest of baszalmstra/adventofcode2017 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of baszalmstra/adventofcode2017 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing baszalmstra/adventofcode2017
[INFO] finished frobbing baszalmstra/adventofcode2017
[INFO] frobbed toml for baszalmstra/adventofcode2017 written to work/ex/beta-1.38-1/sources/1.37.0/gh/baszalmstra/adventofcode2017/Cargo.toml
[INFO] started frobbing baszalmstra/adventofcode2017
[INFO] finished frobbing baszalmstra/adventofcode2017
[INFO] frobbed toml for baszalmstra/adventofcode2017 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/baszalmstra/adventofcode2017/Cargo.toml
[INFO] crate baszalmstra/adventofcode2017 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing baszalmstra/adventofcode2017 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/baszalmstra/adventofcode2017:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5ec3ee383ffe2f6cd8dc4b8c81e7b8226ba7fc8412105c0701dfec014bc1b0e1
[INFO] running `"docker" "start" "-a" "5ec3ee383ffe2f6cd8dc4b8c81e7b8226ba7fc8412105c0701dfec014bc1b0e1"`
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling adventofcode2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/day1/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(io)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day1/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/day4/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(entry_and_modify)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/day9/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(io)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/day9/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/day7/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(entry_and_modify)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::fs::File` in the current scope
[INFO] [stderr]   --> src/day1/main.rs:11:29
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let values:Vec<u32> = f.chars()
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `adventofcode2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `chars` found for type `std::io::BufReader<std::fs::File>` in the current scope
[INFO] [stderr]   --> src/day9/main.rs:41:32
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut char_iter = reader.chars().map(|c| c.unwrap());
[INFO] [stderr]    |                                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `adventofcode2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `adventofcode2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `adventofcode2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5ec3ee383ffe2f6cd8dc4b8c81e7b8226ba7fc8412105c0701dfec014bc1b0e1"`
[INFO] running `"docker" "rm" "-f" "5ec3ee383ffe2f6cd8dc4b8c81e7b8226ba7fc8412105c0701dfec014bc1b0e1"`
[INFO] [stdout] 5ec3ee383ffe2f6cd8dc4b8c81e7b8226ba7fc8412105c0701dfec014bc1b0e1