[INFO] updating cached repository https://github.com/FTB-Gamepedia/ftb-rs-plus
[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] bf493f789072de8a053fe7e8282e153a8f171111
[INFO] testing FTB-Gamepedia/ftb-rs-plus against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFTB-Gamepedia%2Fftb-rs-plus" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FTB-Gamepedia/ftb-rs-plus on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FTB-Gamepedia/ftb-rs-plus
[INFO] finished tweaking git repo https://github.com/FTB-Gamepedia/ftb-rs-plus
[INFO] tweaked toml for git repo https://github.com/FTB-Gamepedia/ftb-rs-plus written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FTB-Gamepedia/ftb-rs-plus already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 36b21f5408e4ec2aaa7fb0ed0e5ad3989a1b7f44df2e2119bb93ae18b56a8f82
[INFO] running `"docker" "start" "-a" "36b21f5408e4ec2aaa7fb0ed0e5ad3989a1b7f44df2e2119bb93ae18b56a8f82"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling ftb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::fs::walk_dir`
[INFO] [stderr]   --> src/main.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::fs::{File, copy, walk_dir};
[INFO] [stderr]    |                           ^^^^^^^^ no `walk_dir` in `fs`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::fs::walk_dir`
[INFO] [stderr]  --> src/tilesheets.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fs::{File, walk_dir};
[INFO] [stderr]   |                     ^^^^^^^^ no `walk_dir` in `fs`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(fs_walk, slice_patterns, drain)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GenericImage`
[INFO] [stderr]  --> src/main.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 | use image::{GenericImage, ImageBuffer, Pixel, Rgba, RgbaImage};
[INFO] [stderr]   |             ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/main.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 |         (cap.at(1).unwrap().to_owned(), cap.at(2).unwrap().to_owned())
[INFO] [stderr]    |              ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/main.rs:35:45
[INFO] [stderr]    |
[INFO] [stderr] 35 |         (cap.at(1).unwrap().to_owned(), cap.at(2).unwrap().to_owned())
[INFO] [stderr]    |                                             ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:130:51
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let new = format!("Crop {} ({}).png", cap.at(1).unwrap(), cap.at(2).unwrap());
[INFO] [stderr]     |                                                   ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:130:71
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let new = format!("Crop {} ({}).png", cap.at(1).unwrap(), cap.at(2).unwrap());
[INFO] [stderr]     |                                                                       ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:165:24
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let name = cap.at(1).unwrap();
[INFO] [stderr]     |                        ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:166:21
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let x = cap.at(2).unwrap();
[INFO] [stderr]     |                     ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:167:21
[INFO] [stderr]     |
[INFO] [stderr] 167 |         let y = cap.at(3).unwrap();
[INFO] [stderr]     |                     ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:212:28
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let quantity = cap.at(1).unwrap();
[INFO] [stderr]     |                            ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:214:24
[INFO] [stderr]     |
[INFO] [stderr] 214 |         let item = cap.at(2).unwrap();
[INFO] [stderr]     |                        ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/main.rs:215:24
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let meta = cap.at(3).unwrap();
[INFO] [stderr]     |                        ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/tilesheets.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 (cap.at(1).unwrap().to_owned(), cap.at(2).unwrap().to_owned())
[INFO] [stderr]    |                      ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/tilesheets.rs:73:53
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 (cap.at(1).unwrap().to_owned(), cap.at(2).unwrap().to_owned())
[INFO] [stderr]    |                                                     ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/tilesheets.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |         let x = cap.at(1).unwrap().parse().unwrap();
[INFO] [stderr]     |                     ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/tilesheets.rs:180:21
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let y = cap.at(2).unwrap().parse().unwrap();
[INFO] [stderr]     |                     ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for struct `regex::Captures<'_>` in the current scope
[INFO] [stderr]    --> src/tilesheets.rs:181:24
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let name = cap.at(3).unwrap().to_owned();
[INFO] [stderr]     |                        ^^ method not found in `regex::Captures<'_>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pixel`
[INFO] [stderr]  --> src/main.rs:9:40
[INFO] [stderr]   |
[INFO] [stderr] 9 | use image::{GenericImage, ImageBuffer, Pixel, Rgba, RgbaImage};
[INFO] [stderr]   |                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ToOwned`
[INFO] [stderr]   --> src/main.rs:12:19
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::borrow::{ToOwned};
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GenericImage`
[INFO] [stderr]  --> src/tilesheets.rs:3:19
[INFO] [stderr]   |
[INFO] [stderr] 3 | use image::{self, GenericImage, ImageBuffer, Pixel, RgbaImage};
[INFO] [stderr]   |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pixel`
[INFO] [stderr]  --> src/tilesheets.rs:3:46
[INFO] [stderr]   |
[INFO] [stderr] 3 | use image::{self, GenericImage, ImageBuffer, Pixel, RgbaImage};
[INFO] [stderr]   |                                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 18 previous errors; 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `ftb`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "36b21f5408e4ec2aaa7fb0ed0e5ad3989a1b7f44df2e2119bb93ae18b56a8f82"`
[INFO] running `"docker" "rm" "-f" "36b21f5408e4ec2aaa7fb0ed0e5ad3989a1b7f44df2e2119bb93ae18b56a8f82"`
[INFO] [stdout] 36b21f5408e4ec2aaa7fb0ed0e5ad3989a1b7f44df2e2119bb93ae18b56a8f82