[INFO] crate tcp-test 0.1.0 is already in cache
[INFO] testing tcp-test-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate tcp-test 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tcp-test 0.1.0 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 crates.io crate tcp-test 0.1.0
[INFO] finished tweaking crates.io crate tcp-test 0.1.0
[INFO] tweaked toml for crates.io crate tcp-test 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] dec41c327c652badeee293d4fcac5f9fc90bece4d7db153c8d01f640356ef130
[INFO] running `"docker" "start" "-a" "dec41c327c652badeee293d4fcac5f9fc90bece4d7db153c8d01f640356ef130"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tcp-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "dec41c327c652badeee293d4fcac5f9fc90bece4d7db153c8d01f640356ef130"`
[INFO] running `"docker" "rm" "-f" "dec41c327c652badeee293d4fcac5f9fc90bece4d7db153c8d01f640356ef130"`
[INFO] [stdout] dec41c327c652badeee293d4fcac5f9fc90bece4d7db153c8d01f640356ef130
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ed0dae0a281cccddca0bbbf2a76ea0767a5ca3e5b59c108223f67c7692bb2c8
[INFO] running `"docker" "start" "-a" "4ed0dae0a281cccddca0bbbf2a76ea0767a5ca3e5b59c108223f67c7692bb2c8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tcp-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0284]: type annotations needed
[INFO] [stderr]    --> src/lib.rs:270:60
[INFO] [stderr]     |
[INFO] [stderr] 270 |         assert_eq!(resolve("127.0.0.1:80"), "127.0.0.1:80".parse().unwrap());
[INFO] [stderr]     |                                                            ^^^^^ cannot infer type for type parameter `F` declared on the associated function `parse`
[INFO] [stderr]     |
[INFO] [stderr]     = note: cannot satisfy `<_ as std::str::FromStr>::Err == _`
[INFO] [stderr] help: consider specifying the type argument in the method call
[INFO] [stderr]     |
[INFO] [stderr] 270 |         assert_eq!(resolve("127.0.0.1:80"), "127.0.0.1:80".parse::<F>().unwrap());
[INFO] [stderr]     |                                                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0284`.
[INFO] [stderr] error: could not compile `tcp-test`.
[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: build failed
[INFO] running `"docker" "inspect" "4ed0dae0a281cccddca0bbbf2a76ea0767a5ca3e5b59c108223f67c7692bb2c8"`
[INFO] running `"docker" "rm" "-f" "4ed0dae0a281cccddca0bbbf2a76ea0767a5ca3e5b59c108223f67c7692bb2c8"`
[INFO] [stdout] 4ed0dae0a281cccddca0bbbf2a76ea0767a5ca3e5b59c108223f67c7692bb2c8