[INFO] fetching crate simple_config 0.73.0...
[INFO] testing simple_config-0.73.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate simple_config 0.73.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate simple_config 0.73.0 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 simple_config 0.73.0
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate simple_config 0.73.0
[INFO] tweaked toml for crates.io crate simple_config 0.73.0 written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate crates.io crate simple_config 0.73.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 5c54edbeacf5c4c29ab5f3a7d723e86db3bb00bfcefab41026c1e4d6eebb8de8
[INFO] running `Command { std: "docker" "start" "-a" "5c54edbeacf5c4c29ab5f3a7d723e86db3bb00bfcefab41026c1e4d6eebb8de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c54edbeacf5c4c29ab5f3a7d723e86db3bb00bfcefab41026c1e4d6eebb8de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c54edbeacf5c4c29ab5f3a7d723e86db3bb00bfcefab41026c1e4d6eebb8de8", kill_on_drop: false }`
[INFO] [stdout] 5c54edbeacf5c4c29ab5f3a7d723e86db3bb00bfcefab41026c1e4d6eebb8de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 6bf3698626e9c89bddbf3d63b793172f7550a8b09f9db6beff6b22e166fafe8f
[INFO] running `Command { std: "docker" "start" "-a" "6bf3698626e9c89bddbf3d63b793172f7550a8b09f9db6beff6b22e166fafe8f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling buffered-reader v1.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling simple_config v0.73.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.77s
[INFO] running `Command { std: "docker" "inspect" "6bf3698626e9c89bddbf3d63b793172f7550a8b09f9db6beff6b22e166fafe8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf3698626e9c89bddbf3d63b793172f7550a8b09f9db6beff6b22e166fafe8f", kill_on_drop: false }`
[INFO] [stdout] 6bf3698626e9c89bddbf3d63b793172f7550a8b09f9db6beff6b22e166fafe8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 9115f81d755dc575075e0dd433ed2550564edf147652531fa1d63f68a9da5397
[INFO] running `Command { std: "docker" "start" "-a" "9115f81d755dc575075e0dd433ed2550564edf147652531fa1d63f68a9da5397", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling humantime-serde v1.0.1
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling serde_yaml v0.8.20
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling serde_with_macros v1.5.0
[INFO] [stderr]    Compiling serde_with v1.10.0
[INFO] [stderr]    Compiling simple_config v0.73.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `gitlab_ci`
[INFO] [stdout]   --> examples/gitlab-ci/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #[derive(Debug,PartialEq,serde_derive::Deserialize)]
[INFO] [stdout] 2  | | struct GitlabCi {
[INFO] [stdout] 3  | |     variables: std::collections::BTreeMap<String, String>,
[INFO] [stdout] 4  | |     cache: Cache,
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     assert_eq!(scfg, yaml);
[INFO] [stdout] 63 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `examples/gitlab-ci/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `github_workflow`
[INFO] [stdout]   --> examples/github-workflow/main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #[derive(Debug,PartialEq,serde_derive::Deserialize)]
[INFO] [stdout] 2  | | struct Workflow {
[INFO] [stdout] 3  | |     name: String,
[INFO] [stdout] 4  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |     test("nixpkgs/pending-set")
[INFO] [stdout] 85 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `examples/github-workflow/main.rs`
[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 E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simple_config` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9115f81d755dc575075e0dd433ed2550564edf147652531fa1d63f68a9da5397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9115f81d755dc575075e0dd433ed2550564edf147652531fa1d63f68a9da5397", kill_on_drop: false }`
[INFO] [stdout] 9115f81d755dc575075e0dd433ed2550564edf147652531fa1d63f68a9da5397