[INFO] cloning repository https://github.com/fmmajd/rust-ch20-sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fmmajd/rust-ch20-sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmmajd%2Frust-ch20-sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmmajd%2Frust-ch20-sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c37c99699df449888e8efb5c2b834b1b4ad20a21
[INFO] testing fmmajd/rust-ch20-sample against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffmmajd%2Frust-ch20-sample" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fmmajd/rust-ch20-sample on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fmmajd/rust-ch20-sample
[INFO] finished tweaking git repo https://github.com/fmmajd/rust-ch20-sample
[INFO] tweaked toml for git repo https://github.com/fmmajd/rust-ch20-sample written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/fmmajd/rust-ch20-sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 768cd52b795a29f410369a56fd9268a28b8b10aa76477f7d59425bfce3cb0d6e
[INFO] running `Command { std: "docker" "start" "-a" "768cd52b795a29f410369a56fd9268a28b8b10aa76477f7d59425bfce3cb0d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "768cd52b795a29f410369a56fd9268a28b8b10aa76477f7d59425bfce3cb0d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768cd52b795a29f410369a56fd9268a28b8b10aa76477f7d59425bfce3cb0d6e", kill_on_drop: false }`
[INFO] [stdout] 768cd52b795a29f410369a56fd9268a28b8b10aa76477f7d59425bfce3cb0d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec600c92ff4d635990f198a632c14a3282489ec34b0bf6cd80bd3f65a4acce6d
[INFO] running `Command { std: "docker" "start" "-a" "ec600c92ff4d635990f198a632c14a3282489ec34b0bf6cd80bd3f65a4acce6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let stream = stream.unwrap();
[INFO] [stdout]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ec600c92ff4d635990f198a632c14a3282489ec34b0bf6cd80bd3f65a4acce6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec600c92ff4d635990f198a632c14a3282489ec34b0bf6cd80bd3f65a4acce6d", kill_on_drop: false }`
[INFO] [stdout] ec600c92ff4d635990f198a632c14a3282489ec34b0bf6cd80bd3f65a4acce6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8849d7ecef695b2b5c2303747da0f1696ab98d6942e10084fd01d4ad7c3af443
[INFO] running `Command { std: "docker" "start" "-a" "8849d7ecef695b2b5c2303747da0f1696ab98d6942e10084fd01d4ad7c3af443", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]  --> src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let stream = stream.unwrap();
[INFO] [stdout]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 3.17s
[INFO] running `Command { std: "docker" "inspect" "8849d7ecef695b2b5c2303747da0f1696ab98d6942e10084fd01d4ad7c3af443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8849d7ecef695b2b5c2303747da0f1696ab98d6942e10084fd01d4ad7c3af443", kill_on_drop: false }`
[INFO] [stdout] 8849d7ecef695b2b5c2303747da0f1696ab98d6942e10084fd01d4ad7c3af443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe962b4ca18af4d0ce81308b4f772cbdf6134bd5c131024abba071b6b106df84
[INFO] running `Command { std: "docker" "start" "-a" "fe962b4ca18af4d0ce81308b4f772cbdf6134bd5c131024abba071b6b106df84", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `stream`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:7:13
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 7 |         let stream = stream.unwrap();
[INFO] [stdout] 
[INFO] [stderr]   |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `webserver` (bin "webserver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/webserver-e652383b69c0cef1)
[INFO] running `Command { std: "docker" "inspect" "fe962b4ca18af4d0ce81308b4f772cbdf6134bd5c131024abba071b6b106df84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe962b4ca18af4d0ce81308b4f772cbdf6134bd5c131024abba071b6b106df84", kill_on_drop: false }`
[INFO] [stdout] fe962b4ca18af4d0ce81308b4f772cbdf6134bd5c131024abba071b6b106df84