[INFO] updating cached repository https://github.com/Namr/Brune
[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] 6f7092480a1fd4418ffd92dcdbf3eaea964bf34d
[INFO] checking Namr/Brune against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNamr%2FBrune" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Namr/Brune on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Namr/Brune
[INFO] finished tweaking git repo https://github.com/Namr/Brune
[INFO] tweaked toml for git repo https://github.com/Namr/Brune written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Namr/Brune already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] ec51665a38fa5deeaa88c3dcdbab8ef6143ccf394a21c8e1d2e3ece8bedc2fb9
[INFO] running `"docker" "start" "-a" "ec51665a38fa5deeaa88c3dcdbab8ef6143ccf394a21c8e1d2e3ece8bedc2fb9"`
[INFO] [stderr]     Checking brune v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `::`
[INFO] [stderr]   --> src/main.rs:19:49
[INFO] [stderr]    |
[INFO] [stderr] 19 |             line.split_by_whitespace().collect()::<Vec<&str>>().map(|num| num.parse()::<f64>().expect("Error Parsing Connection data")).collect();
[INFO] [stderr]    |                                                 ^^ expected one of `.`, `;`, `?`, or an operator
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `::`
[INFO] [stderr]   --> src/main.rs:19:49
[INFO] [stderr]    |
[INFO] [stderr] 19 |             line.split_by_whitespace().collect()::<Vec<&str>>().map(|num| num.parse()::<f64>().expect("Error Parsing Connection data")).collect();
[INFO] [stderr]    |                                                 ^^ expected one of `.`, `;`, `?`, or an operator
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/main.rs:9:27
[INFO] [stderr]    |
[INFO] [stderr] 5  | / fn main() 
[INFO] [stderr] 6  | | {
[INFO] [stderr] 7  | |     let mut connections = Vec::new();
[INFO] [stderr] 8  | |
[INFO] [stderr] 9  | |     let connection_file = File::open("ree.edge")?;
[INFO] [stderr]    | |                           ^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     println!("Hello, world!");
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/main.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 5  | / fn main() 
[INFO] [stderr] 6  | | {
[INFO] [stderr] 7  | |     let mut connections = Vec::new();
[INFO] [stderr] 8  | |
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     while reader.read_line(&mut buf)? > 0 
[INFO] [stderr]    | |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     println!("Hello, world!");
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/main.rs:16:28
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let line = buf.trim_right();
[INFO] [stderr]    |                            ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `brune`.
[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[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/main.rs:9:27
[INFO] [stderr]    |
[INFO] [stderr] 5  | / fn main() 
[INFO] [stderr] 6  | | {
[INFO] [stderr] 7  | |     let mut connections = Vec::new();
[INFO] [stderr] 8  | |
[INFO] [stderr] 9  | |     let connection_file = File::open("ree.edge")?;
[INFO] [stderr]    | |                           ^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     println!("Hello, world!");
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/main.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 5  | / fn main() 
[INFO] [stderr] 6  | | {
[INFO] [stderr] 7  | |     let mut connections = Vec::new();
[INFO] [stderr] 8  | |
[INFO] [stderr] ...  |
[INFO] [stderr] 13 | |     while reader.read_line(&mut buf)? > 0 
[INFO] [stderr]    | |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     println!("Hello, world!");
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/main.rs:16:28
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let line = buf.trim_right();
[INFO] [stderr]    |                            ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `brune`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ec51665a38fa5deeaa88c3dcdbab8ef6143ccf394a21c8e1d2e3ece8bedc2fb9"`
[INFO] running `"docker" "rm" "-f" "ec51665a38fa5deeaa88c3dcdbab8ef6143ccf394a21c8e1d2e3ece8bedc2fb9"`
[INFO] [stdout] ec51665a38fa5deeaa88c3dcdbab8ef6143ccf394a21c8e1d2e3ece8bedc2fb9
