[INFO] updating cached repository https://github.com/menski/random-stream-server
[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] a0fa5c59a8d1d1c97a225ef0419b7e9a87155f39
[INFO] testing menski/random-stream-server against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenski%2Frandom-stream-server" "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/menski/random-stream-server 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/menski/random-stream-server
[INFO] finished tweaking git repo https://github.com/menski/random-stream-server
[INFO] tweaked toml for git repo https://github.com/menski/random-stream-server written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/menski/random-stream-server 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] 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] d326fae5429f1c7a751c25108b55db985df868981a8cccc37b09358dfe94c366
[INFO] running `"docker" "start" "-a" "d326fae5429f1c7a751c25108b55db985df868981a8cccc37b09358dfe94c366"`
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling random-stream-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:114:16
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Ok(mut stream) => {
[INFO] [stderr]     |                ----^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `"docker" "inspect" "d326fae5429f1c7a751c25108b55db985df868981a8cccc37b09358dfe94c366"`
[INFO] running `"docker" "rm" "-f" "d326fae5429f1c7a751c25108b55db985df868981a8cccc37b09358dfe94c366"`
[INFO] [stdout] d326fae5429f1c7a751c25108b55db985df868981a8cccc37b09358dfe94c366
[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] e81047ba8f485940be7fade965d31666b245b8af9797d131bb43f2fab076bb81
[INFO] running `"docker" "start" "-a" "e81047ba8f485940be7fade965d31666b245b8af9797d131bb43f2fab076bb81"`
[INFO] [stderr]    Compiling random-stream-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:114:16
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Ok(mut stream) => {
[INFO] [stderr]     |                ----^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "e81047ba8f485940be7fade965d31666b245b8af9797d131bb43f2fab076bb81"`
[INFO] running `"docker" "rm" "-f" "e81047ba8f485940be7fade965d31666b245b8af9797d131bb43f2fab076bb81"`
[INFO] [stdout] e81047ba8f485940be7fade965d31666b245b8af9797d131bb43f2fab076bb81
[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] 5ded86c04052fe810a6f670cba280a2ce6598fa4e45cc2841a40df8bfa3da22a
[INFO] running `"docker" "start" "-a" "5ded86c04052fe810a6f670cba280a2ce6598fa4e45cc2841a40df8bfa3da22a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/random_stream_server-40b36d8969a4f16e
[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" "5ded86c04052fe810a6f670cba280a2ce6598fa4e45cc2841a40df8bfa3da22a"`
[INFO] running `"docker" "rm" "-f" "5ded86c04052fe810a6f670cba280a2ce6598fa4e45cc2841a40df8bfa3da22a"`
[INFO] [stdout] 5ded86c04052fe810a6f670cba280a2ce6598fa4e45cc2841a40df8bfa3da22a