[INFO] cloning repository https://github.com/ScottVaverchak/corerustils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ScottVaverchak/corerustils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottVaverchak%2Fcorerustils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottVaverchak%2Fcorerustils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29d240b63cd7d227910a2092cc6b402ec48ea099
[INFO] testing ScottVaverchak/corerustils against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FScottVaverchak%2Fcorerustils" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ScottVaverchak/corerustils 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/ScottVaverchak/corerustils
[INFO] finished tweaking git repo https://github.com/ScottVaverchak/corerustils
[INFO] tweaked toml for git repo https://github.com/ScottVaverchak/corerustils written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate git repo https://github.com/ScottVaverchak/corerustils 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 1775c5ee353f625cb5870275cb8e39187aa73c0aa05cfa9964b9c3c04f4cdc69
[INFO] running `Command { std: "docker" "start" "-a" "1775c5ee353f625cb5870275cb8e39187aa73c0aa05cfa9964b9c3c04f4cdc69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1775c5ee353f625cb5870275cb8e39187aa73c0aa05cfa9964b9c3c04f4cdc69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1775c5ee353f625cb5870275cb8e39187aa73c0aa05cfa9964b9c3c04f4cdc69", kill_on_drop: false }`
[INFO] [stdout] 1775c5ee353f625cb5870275cb8e39187aa73c0aa05cfa9964b9c3c04f4cdc69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 612bf90e9b5f4c6fdb84d17b5fe37543e208b389ccad304b7bec21923a9abefa
[INFO] running `Command { std: "docker" "start" "-a" "612bf90e9b5f4c6fdb84d17b5fe37543e208b389ccad304b7bec21923a9abefa", kill_on_drop: false }`
[INFO] [stderr]    Compiling head v0.1.0 (/opt/rustwide/workdir/head)
[INFO] [stderr]    Compiling yes v0.1.0 (/opt/rustwide/workdir/yes)
[INFO] [stderr]    Compiling cat v0.1.0 (/opt/rustwide/workdir/cat)
[INFO] [stdout] warning: struct is never constructed: `Arguments`
[INFO] [stdout]  --> head/src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Arguments {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 1.83s
[INFO] running `Command { std: "docker" "inspect" "612bf90e9b5f4c6fdb84d17b5fe37543e208b389ccad304b7bec21923a9abefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612bf90e9b5f4c6fdb84d17b5fe37543e208b389ccad304b7bec21923a9abefa", kill_on_drop: false }`
[INFO] [stdout] 612bf90e9b5f4c6fdb84d17b5fe37543e208b389ccad304b7bec21923a9abefa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 2c7452e88d492c2a5d6a6413f7527edabd06b918ebb747fa27e4a4193ab72226
[INFO] running `Command { std: "docker" "start" "-a" "2c7452e88d492c2a5d6a6413f7527edabd06b918ebb747fa27e4a4193ab72226", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling yes v0.1.0 (/opt/rustwide/workdir/yes)
[INFO] [stderr]    Compiling cat v0.1.0 (/opt/rustwide/workdir/cat)
[INFO] [stderr]    Compiling head v0.1.0 (/opt/rustwide/workdir/head)
[INFO] [stdout] warning: struct is never constructed: `Arguments`
[INFO] [stdout]  --> head/src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Arguments {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 3.21s
[INFO] running `Command { std: "docker" "inspect" "2c7452e88d492c2a5d6a6413f7527edabd06b918ebb747fa27e4a4193ab72226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c7452e88d492c2a5d6a6413f7527edabd06b918ebb747fa27e4a4193ab72226", kill_on_drop: false }`
[INFO] [stdout] 2c7452e88d492c2a5d6a6413f7527edabd06b918ebb747fa27e4a4193ab72226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] cb2b570a32bc11d6bd564f5b37349c65d646f1776be9fb5d4b89c78e52deb96a
[INFO] running `Command { std: "docker" "start" "-a" "cb2b570a32bc11d6bd564f5b37349c65d646f1776be9fb5d4b89c78e52deb96a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: struct is never constructed: `Arguments`
[INFO] [stderr]  --> head/src/main.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Arguments {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `head` (bin "head" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cat-970506422501083f)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/head-d8e7be435c75e3a5)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yes-8011f63ab6448f6b)
[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] [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" "cb2b570a32bc11d6bd564f5b37349c65d646f1776be9fb5d4b89c78e52deb96a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2b570a32bc11d6bd564f5b37349c65d646f1776be9fb5d4b89c78e52deb96a", kill_on_drop: false }`
[INFO] [stdout] cb2b570a32bc11d6bd564f5b37349c65d646f1776be9fb5d4b89c78e52deb96a