[INFO] fetching crate arc_from_toml 0.1.0...
[INFO] testing arc_from_toml-0.1.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate arc_from_toml 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate arc_from_toml 0.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc_from_toml 0.1.0
[INFO] finished tweaking crates.io crate arc_from_toml 0.1.0
[INFO] tweaked toml for crates.io crate arc_from_toml 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ab027696b0e8c4600d7b76d9edc757bdf454d0413552809bb2c2174cde94267
[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" "2ab027696b0e8c4600d7b76d9edc757bdf454d0413552809bb2c2174cde94267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ab027696b0e8c4600d7b76d9edc757bdf454d0413552809bb2c2174cde94267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab027696b0e8c4600d7b76d9edc757bdf454d0413552809bb2c2174cde94267", kill_on_drop: false }`
[INFO] [stdout] 2ab027696b0e8c4600d7b76d9edc757bdf454d0413552809bb2c2174cde94267
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] cf5eaba57867b2b750b0aa18ee9be052ee6b2cba2c8d835471525d39d5c15037
[INFO] running `Command { std: "docker" "start" "-a" "cf5eaba57867b2b750b0aa18ee9be052ee6b2cba2c8d835471525d39d5c15037", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling arc_convert_lib v1.0.0
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling toml_edit v0.1.5
[INFO] [stderr]    Compiling arc_from_toml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `to_arc`
[INFO] [stdout]  --> src/utils/arc_parser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn to_arc(text: &str) -> Result<String, &'static str> {
[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 39.14s
[INFO] running `Command { std: "docker" "inspect" "cf5eaba57867b2b750b0aa18ee9be052ee6b2cba2c8d835471525d39d5c15037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5eaba57867b2b750b0aa18ee9be052ee6b2cba2c8d835471525d39d5c15037", kill_on_drop: false }`
[INFO] [stdout] cf5eaba57867b2b750b0aa18ee9be052ee6b2cba2c8d835471525d39d5c15037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1680fd6f2fe471690c9fe5bb652222f55319f910b919eddc80bb4f04f047f142
[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" "1680fd6f2fe471690c9fe5bb652222f55319f910b919eddc80bb4f04f047f142", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc_from_toml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `to_arc`
[INFO] [stdout]  --> src/utils/arc_parser.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn to_arc(text: &str) -> Result<String, &'static str> {
[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] [stdout] error[E0433]: failed to resolve: use of undeclared type `Settings`
[INFO] [stdout]  --> tests/do_fmt.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s = Settings::default();
[INFO] [stdout]   |             ^^^^^^^^ use of undeclared type `Settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arc_from_toml`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1680fd6f2fe471690c9fe5bb652222f55319f910b919eddc80bb4f04f047f142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1680fd6f2fe471690c9fe5bb652222f55319f910b919eddc80bb4f04f047f142", kill_on_drop: false }`
[INFO] [stdout] 1680fd6f2fe471690c9fe5bb652222f55319f910b919eddc80bb4f04f047f142
