[INFO] fetching crate yolol-runner 0.2.2...
[INFO] testing yolol-runner-0.2.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate yolol-runner 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate yolol-runner 0.2.2 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 crates.io crate yolol-runner 0.2.2
[INFO] finished tweaking crates.io crate yolol-runner 0.2.2
[INFO] tweaked toml for crates.io crate yolol-runner 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 701877229a616ef803d8222f3a35e48564c3e85de11c871f2324c319af162c2e
[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" "701877229a616ef803d8222f3a35e48564c3e85de11c871f2324c319af162c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "701877229a616ef803d8222f3a35e48564c3e85de11c871f2324c319af162c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701877229a616ef803d8222f3a35e48564c3e85de11c871f2324c319af162c2e", kill_on_drop: false }`
[INFO] [stdout] 701877229a616ef803d8222f3a35e48564c3e85de11c871f2324c319af162c2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6c43041fa10e6b16315884407a1f9624ef7fd6c436467c0cee2ac0cd45a4e9e0
[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" "6c43041fa10e6b16315884407a1f9624ef7fd6c436467c0cee2ac0cd45a4e9e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]    Compiling concat-idents v1.1.3
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling yolol-devices v0.3.3
[INFO] [stderr]    Compiling peg v0.7.0
[INFO] [stderr]    Compiling yolol-runner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "6c43041fa10e6b16315884407a1f9624ef7fd6c436467c0cee2ac0cd45a4e9e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c43041fa10e6b16315884407a1f9624ef7fd6c436467c0cee2ac0cd45a4e9e0", kill_on_drop: false }`
[INFO] [stdout] 6c43041fa10e6b16315884407a1f9624ef7fd6c436467c0cee2ac0cd45a4e9e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a67634b0f6c031ccc6d9e2205dd173e18f72d0b52586df2517ca28b916d09023
[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" "a67634b0f6c031ccc6d9e2205dd173e18f72d0b52586df2517ca28b916d09023", kill_on_drop: false }`
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling yolol-runner v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]  --> src/ast.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Empty,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]  --> src/ast.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "a67634b0f6c031ccc6d9e2205dd173e18f72d0b52586df2517ca28b916d09023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67634b0f6c031ccc6d9e2205dd173e18f72d0b52586df2517ca28b916d09023", kill_on_drop: false }`
[INFO] [stdout] a67634b0f6c031ccc6d9e2205dd173e18f72d0b52586df2517ca28b916d09023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2017c9bd3ce6eadc5bd0a4cb0acb5e2a9db87d46e7541a7b01c9087c5481d526
[INFO] running `Command { std: "docker" "start" "-a" "2017c9bd3ce6eadc5bd0a4cb0acb5e2a9db87d46e7541a7b01c9087c5481d526", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]  --> src/ast.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Empty,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]  --> src/ast.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `yolol-runner` (lib) generated 2 warnings
[INFO] [stderr] warning: `yolol-runner` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yolol_runner-08352e9d8bbc3a53)
[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]    Doc-tests yolol-runner
[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" "2017c9bd3ce6eadc5bd0a4cb0acb5e2a9db87d46e7541a7b01c9087c5481d526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2017c9bd3ce6eadc5bd0a4cb0acb5e2a9db87d46e7541a7b01c9087c5481d526", kill_on_drop: false }`
[INFO] [stdout] 2017c9bd3ce6eadc5bd0a4cb0acb5e2a9db87d46e7541a7b01c9087c5481d526