[INFO] cloning repository https://github.com/menski/random-stream-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/menski/random-stream-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenski%2Frandom-stream-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenski%2Frandom-stream-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0fa5c59a8d1d1c97a225ef0419b7e9a87155f39
[INFO] testing menski/random-stream-server against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmenski%2Frandom-stream-server" "/workspace/builds/worker-90/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-90/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/menski/random-stream-server on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-90/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d08d4181d88dcb2b694f0b084d3784b536b4d8dacba51fc67b4db4be45d701f
[INFO] running `Command { std: "docker" "start" "-a" "3d08d4181d88dcb2b694f0b084d3784b536b4d8dacba51fc67b4db4be45d701f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d08d4181d88dcb2b694f0b084d3784b536b4d8dacba51fc67b4db4be45d701f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d08d4181d88dcb2b694f0b084d3784b536b4d8dacba51fc67b4db4be45d701f", kill_on_drop: false }`
[INFO] [stdout] 3d08d4181d88dcb2b694f0b084d3784b536b4d8dacba51fc67b4db4be45d701f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d572352e5e39f18db5cbcb1175a15916011fb088d4a3cb41b472b9d6f0537797
[INFO] running `Command { std: "docker" "start" "-a" "d572352e5e39f18db5cbcb1175a15916011fb088d4a3cb41b472b9d6f0537797", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling random-stream-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:114:16
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Ok(mut stream) => {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "d572352e5e39f18db5cbcb1175a15916011fb088d4a3cb41b472b9d6f0537797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d572352e5e39f18db5cbcb1175a15916011fb088d4a3cb41b472b9d6f0537797", kill_on_drop: false }`
[INFO] [stdout] d572352e5e39f18db5cbcb1175a15916011fb088d4a3cb41b472b9d6f0537797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5482adc7c01e9359ae3e66c3e60b1d9ca3e326c778399d9cf81158878c1f3488
[INFO] running `Command { std: "docker" "start" "-a" "5482adc7c01e9359ae3e66c3e60b1d9ca3e326c778399d9cf81158878c1f3488", kill_on_drop: false }`
[INFO] [stderr]    Compiling random-stream-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:114:16
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Ok(mut stream) => {
[INFO] [stdout]     |                ----^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "5482adc7c01e9359ae3e66c3e60b1d9ca3e326c778399d9cf81158878c1f3488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5482adc7c01e9359ae3e66c3e60b1d9ca3e326c778399d9cf81158878c1f3488", kill_on_drop: false }`
[INFO] [stdout] 5482adc7c01e9359ae3e66c3e60b1d9ca3e326c778399d9cf81158878c1f3488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b173bcc7e16f4c2ffa510c625577bc5f0ce66b39264c58cf65fe73db32a239a
[INFO] running `Command { std: "docker" "start" "-a" "0b173bcc7e16f4c2ffa510c625577bc5f0ce66b39264c58cf65fe73db32a239a", kill_on_drop: false }`
[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] warning: `random-stream-server` (bin "random-stream-server" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/random_stream_server-ad8eab1610b267af)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b173bcc7e16f4c2ffa510c625577bc5f0ce66b39264c58cf65fe73db32a239a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b173bcc7e16f4c2ffa510c625577bc5f0ce66b39264c58cf65fe73db32a239a", kill_on_drop: false }`
[INFO] [stdout] 0b173bcc7e16f4c2ffa510c625577bc5f0ce66b39264c58cf65fe73db32a239a