[INFO] updating cached repository https://github.com/laurilehmijoki/rust-json-over-udp-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 54c68379ff721757fbc4abc64888cdbdad9c1861
[INFO] testing laurilehmijoki/rust-json-over-udp-example against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaurilehmijoki%2Frust-json-over-udp-example" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/laurilehmijoki/rust-json-over-udp-example on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/laurilehmijoki/rust-json-over-udp-example
[INFO] finished tweaking git repo https://github.com/laurilehmijoki/rust-json-over-udp-example
[INFO] tweaked toml for git repo https://github.com/laurilehmijoki/rust-json-over-udp-example written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/laurilehmijoki/rust-json-over-udp-example already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 4c5a51e2c487336a363b40bb90d7bd3227265b6e48e667182b9c5363c8c5454a
[INFO] running `"docker" "start" "-a" "4c5a51e2c487336a363b40bb90d7bd3227265b6e48e667182b9c5363c8c5454a"`
[INFO] [stderr]    Compiling json_over_udp_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let socket = try!(UdpSocket::bind(remote_address).map_err(|e| {
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:22:45
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (amount_read, sender_address) = try!(socket.recv_from(&mut buf).map_err(|e| {
[INFO] [stderr]    |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let message = try!(decode_message(message_buf));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:68:23
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let message_str = try!(str::from_utf8(message_buf).map_err(|e| {
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "4c5a51e2c487336a363b40bb90d7bd3227265b6e48e667182b9c5363c8c5454a"`
[INFO] running `"docker" "rm" "-f" "4c5a51e2c487336a363b40bb90d7bd3227265b6e48e667182b9c5363c8c5454a"`
[INFO] [stdout] 4c5a51e2c487336a363b40bb90d7bd3227265b6e48e667182b9c5363c8c5454a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5d62a8fda776fc079879dafd3cae5ceec06da5b95574793c03432abac8c83094
[INFO] running `"docker" "start" "-a" "5d62a8fda776fc079879dafd3cae5ceec06da5b95574793c03432abac8c83094"`
[INFO] [stderr]    Compiling json_over_udp_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let socket = try!(UdpSocket::bind(remote_address).map_err(|e| {
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:22:45
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let (amount_read, sender_address) = try!(socket.recv_from(&mut buf).map_err(|e| {
[INFO] [stderr]    |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let message = try!(decode_message(message_buf));
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:68:23
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let message_str = try!(str::from_utf8(message_buf).map_err(|e| {
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "5d62a8fda776fc079879dafd3cae5ceec06da5b95574793c03432abac8c83094"`
[INFO] running `"docker" "rm" "-f" "5d62a8fda776fc079879dafd3cae5ceec06da5b95574793c03432abac8c83094"`
[INFO] [stdout] 5d62a8fda776fc079879dafd3cae5ceec06da5b95574793c03432abac8c83094
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 609becdcc43fe268631468af489118f5118225ae68fb241ca683c065ea2eba14
[INFO] running `"docker" "start" "-a" "609becdcc43fe268631468af489118f5118225ae68fb241ca683c065ea2eba14"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/json_over_udp_example-e091d18e19f8749a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "609becdcc43fe268631468af489118f5118225ae68fb241ca683c065ea2eba14"`
[INFO] running `"docker" "rm" "-f" "609becdcc43fe268631468af489118f5118225ae68fb241ca683c065ea2eba14"`
[INFO] [stdout] 609becdcc43fe268631468af489118f5118225ae68fb241ca683c065ea2eba14