[INFO] cloning repository https://github.com/cNorspang/RustTut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cNorspang/RustTut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcNorspang%2FRustTut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcNorspang%2FRustTut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 291c4d82a27b8716fccd7ffab9b2fab05494d95e
[INFO] testing cNorspang/RustTut against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcNorspang%2FRustTut" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cNorspang/RustTut on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cNorspang/RustTut
[INFO] finished tweaking git repo https://github.com/cNorspang/RustTut
[INFO] tweaked toml for git repo https://github.com/cNorspang/RustTut written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cNorspang/RustTut already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a61891908399bf04c012cc29735fe11c40b0fa8e9e812adc9055744e4099388c
[INFO] running `Command { std: "docker" "start" "-a" "a61891908399bf04c012cc29735fe11c40b0fa8e9e812adc9055744e4099388c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a61891908399bf04c012cc29735fe11c40b0fa8e9e812adc9055744e4099388c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61891908399bf04c012cc29735fe11c40b0fa8e9e812adc9055744e4099388c", kill_on_drop: false }`
[INFO] [stdout] a61891908399bf04c012cc29735fe11c40b0fa8e9e812adc9055744e4099388c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 77d71c772bd515c3ec8dd991abac42fb0b0162c38638058fab07f42d48a9078a
[INFO] running `Command { std: "docker" "start" "-a" "77d71c772bd515c3ec8dd991abac42fb0b0162c38638058fab07f42d48a9078a", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `to_tuple`
[INFO] [stdout]   --> src/structs.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn to_tuple(self) -> (String, String) {
[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 2.09s
[INFO] running `Command { std: "docker" "inspect" "77d71c772bd515c3ec8dd991abac42fb0b0162c38638058fab07f42d48a9078a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d71c772bd515c3ec8dd991abac42fb0b0162c38638058fab07f42d48a9078a", kill_on_drop: false }`
[INFO] [stdout] 77d71c772bd515c3ec8dd991abac42fb0b0162c38638058fab07f42d48a9078a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ba5675b1f52111d0c479f800d5f6b5cccf8c3b23e7b838f7586b314d3f8db56
[INFO] running `Command { std: "docker" "start" "-a" "3ba5675b1f52111d0c479f800d5f6b5cccf8c3b23e7b838f7586b314d3f8db56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `to_tuple`
[INFO] [stdout]   --> src/structs.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn to_tuple(self) -> (String, String) {
[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 1.68s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_rust-1ed4e8ba7b9b1dab)
[INFO] running `Command { std: "docker" "inspect" "3ba5675b1f52111d0c479f800d5f6b5cccf8c3b23e7b838f7586b314d3f8db56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba5675b1f52111d0c479f800d5f6b5cccf8c3b23e7b838f7586b314d3f8db56", kill_on_drop: false }`
[INFO] [stdout] 3ba5675b1f52111d0c479f800d5f6b5cccf8c3b23e7b838f7586b314d3f8db56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ac6935d3d6138d63082d83c271f1cd8cbc5386d1e73af83634db6fa37ac9457
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0ac6935d3d6138d63082d83c271f1cd8cbc5386d1e73af83634db6fa37ac9457", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `to_tuple`
[INFO] [stderr]   --> src/structs.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn to_tuple(self) -> (String, String) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hello-rust` (bin "hello-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_rust-1ed4e8ba7b9b1dab)
[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" "0ac6935d3d6138d63082d83c271f1cd8cbc5386d1e73af83634db6fa37ac9457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac6935d3d6138d63082d83c271f1cd8cbc5386d1e73af83634db6fa37ac9457", kill_on_drop: false }`
[INFO] [stdout] 0ac6935d3d6138d63082d83c271f1cd8cbc5386d1e73af83634db6fa37ac9457