[INFO] updating cached repository https://github.com/csrene/udpcat
[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] cef27f903e1b7043089e5bf1970e24320ff60875
[INFO] checking csrene/udpcat against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsrene%2Fudpcat" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/csrene/udpcat on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/csrene/udpcat
[INFO] finished tweaking git repo https://github.com/csrene/udpcat
[INFO] tweaked toml for git repo https://github.com/csrene/udpcat written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/csrene/udpcat already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 02cbfe204aaecf4edc9aa4b9b578575b269eab58d0d03a3637dd6853d86af176
[INFO] running `"docker" "start" "-a" "02cbfe204aaecf4edc9aa4b9b578575b269eab58d0d03a3637dd6853d86af176"`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking udpcat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 |     port: u16,
[INFO] [stderr]    |           ^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 |     host: String,
[INFO] [stderr]    |           ^^^^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     verbose: u8,
[INFO] [stderr]    |              ^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 |     port: u16,
[INFO] [stderr]    |           ^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:20:11
[INFO] [stderr]    |
[INFO] [stderr] 20 |     host: String,
[INFO] [stderr]    |           ^^^^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     max_length: usize,
[INFO] [stderr]    |                 ^^^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:25:14
[INFO] [stderr]    |
[INFO] [stderr] 25 |     verbose: u8,
[INFO] [stderr]    |              ^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found macro `matches`
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     max_length: usize,
[INFO] [stderr]    |                 ^^^^^ help: use `!` to invoke the macro: `matches!`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UNIX_EPOCH`
[INFO] [stderr]   --> src/main.rs:36:63
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn main() -> std::io::Result<()> {use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                                                               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UNIX_EPOCH`
[INFO] [stderr]   --> src/main.rs:36:63
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn main() -> std::io::Result<()> {use std::time::{SystemTime, UNIX_EPOCH};
[INFO] [stderr]    |                                                               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     loop {
[INFO] [stderr] 49 | |
[INFO] [stderr] 50 | |         let (amt, src) = socket.recv_from(&mut buf)?;
[INFO] [stderr] 51 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 64 | |         }
[INFO] [stderr] 65 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 66 | 
[INFO] [stderr] 67 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0423`.
[INFO] [stderr] error: could not compile `udpcat`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     loop {
[INFO] [stderr] 49 | |
[INFO] [stderr] 50 | |         let (amt, src) = socket.recv_from(&mut buf)?;
[INFO] [stderr] 51 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 64 | |         }
[INFO] [stderr] 65 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 66 | 
[INFO] [stderr] 67 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0423`.
[INFO] [stderr] error: could not compile `udpcat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "02cbfe204aaecf4edc9aa4b9b578575b269eab58d0d03a3637dd6853d86af176"`
[INFO] running `"docker" "rm" "-f" "02cbfe204aaecf4edc9aa4b9b578575b269eab58d0d03a3637dd6853d86af176"`
[INFO] [stdout] 02cbfe204aaecf4edc9aa4b9b578575b269eab58d0d03a3637dd6853d86af176