[INFO] updating cached repository https://github.com/sigvartmh/smh-tcp
[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] ec43af1b0f9708ce81eee50b774b4fa9ab08358d
[INFO] checking sigvartmh/smh-tcp against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsigvartmh%2Fsmh-tcp" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sigvartmh/smh-tcp on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sigvartmh/smh-tcp
[INFO] finished tweaking git repo https://github.com/sigvartmh/smh-tcp
[INFO] tweaked toml for git repo https://github.com/sigvartmh/smh-tcp written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/sigvartmh/smh-tcp already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 1ff0a3cbb4f09157205603088ca6da8e5450ae23d641452cc227ae77616fa722
[INFO] running `"docker" "start" "-a" "1ff0a3cbb4f09157205603088ca6da8e5450ae23d641452cc227ae77616fa722"`
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]     Checking smh-tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `iface` in `tun_tap`
[INFO] [stderr]  --> src/main.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let nic = tun_tap::iface::new("tun0", tun_tap::Mode::Tun)?;
[INFO] [stderr]   |                        ^^^^^ could not find `iface` in `tun_tap`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
[INFO] [stderr]    --> src/main.rs:7:5
[INFO] [stderr]     |
[INFO] [stderr] 7   |     eprintln!("read:{}, bytes:{:x}", num_bytes, buf[..num_bytes]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `[u8]`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `[u8]: std::fmt::LowerHex` is not satisfied
[INFO] [stderr]  --> src/main.rs:7:49
[INFO] [stderr]   |
[INFO] [stderr] 7 |     eprintln!("read:{}, bytes:{:x}", num_bytes, buf[..num_bytes]);
[INFO] [stderr]   |                                                 ^^^^^^^^^^^^^^^^ the trait `std::fmt::LowerHex` is not implemented for `[u8]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: required by `std::fmt::LowerHex::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `smh-tcp`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: could not find `iface` in `tun_tap`
[INFO] [stderr]  --> src/main.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let nic = tun_tap::iface::new("tun0", tun_tap::Mode::Tun)?;
[INFO] [stderr]   |                        ^^^^^ could not find `iface` in `tun_tap`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
[INFO] [stderr]    --> src/main.rs:7:5
[INFO] [stderr]     |
[INFO] [stderr] 7   |     eprintln!("read:{}, bytes:{:x}", num_bytes, buf[..num_bytes]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `[u8]`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `[u8]: std::fmt::LowerHex` is not satisfied
[INFO] [stderr]  --> src/main.rs:7:49
[INFO] [stderr]   |
[INFO] [stderr] 7 |     eprintln!("read:{}, bytes:{:x}", num_bytes, buf[..num_bytes]);
[INFO] [stderr]   |                                                 ^^^^^^^^^^^^^^^^ the trait `std::fmt::LowerHex` is not implemented for `[u8]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: required by `std::fmt::LowerHex::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `smh-tcp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1ff0a3cbb4f09157205603088ca6da8e5450ae23d641452cc227ae77616fa722"`
[INFO] running `"docker" "rm" "-f" "1ff0a3cbb4f09157205603088ca6da8e5450ae23d641452cc227ae77616fa722"`
[INFO] [stdout] 1ff0a3cbb4f09157205603088ca6da8e5450ae23d641452cc227ae77616fa722