[INFO] cloning repository https://github.com/MiguelMathias/proj1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MiguelMathias/proj1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelMathias%2Fproj1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelMathias%2Fproj1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3c571213b5f2b174cf3f0be361f368dce0bded1
[INFO] checking MiguelMathias/proj1 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiguelMathias%2Fproj1" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MiguelMathias/proj1 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MiguelMathias/proj1
[INFO] finished tweaking git repo https://github.com/MiguelMathias/proj1
[INFO] tweaked toml for git repo https://github.com/MiguelMathias/proj1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/MiguelMathias/proj1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 100de94c295ca9a28a7a6ba12f8aa557834124e1030c24d7712a1b2378db2102
[INFO] running `Command { std: "docker" "start" "-a" "100de94c295ca9a28a7a6ba12f8aa557834124e1030c24d7712a1b2378db2102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "100de94c295ca9a28a7a6ba12f8aa557834124e1030c24d7712a1b2378db2102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100de94c295ca9a28a7a6ba12f8aa557834124e1030c24d7712a1b2378db2102", kill_on_drop: false }`
[INFO] [stdout] 100de94c295ca9a28a7a6ba12f8aa557834124e1030c24d7712a1b2378db2102
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 545441330c15867da19ea65f8d10ec0829d80d5c00091e8f01c2cc386ffd536c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "545441330c15867da19ea65f8d10ec0829d80d5c00091e8f01c2cc386ffd536c", kill_on_drop: false }`
[INFO] [stderr]     Checking proj1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/tcp/sender.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 .expect(format!("Couldn't bind sender to {}!", ipv4Addr)),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&str`, found struct `String`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proj1`
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/tcp/sender.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 .expect(format!("Couldn't bind sender to {}!", ipv4Addr)),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&str`, found struct `String`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "545441330c15867da19ea65f8d10ec0829d80d5c00091e8f01c2cc386ffd536c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "545441330c15867da19ea65f8d10ec0829d80d5c00091e8f01c2cc386ffd536c", kill_on_drop: false }`
[INFO] [stdout] 545441330c15867da19ea65f8d10ec0829d80d5c00091e8f01c2cc386ffd536c