[INFO] cloning repository https://github.com/bkase/jsonschema-to-dhall
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bkase/jsonschema-to-dhall" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkase%2Fjsonschema-to-dhall", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkase%2Fjsonschema-to-dhall'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88299aa6e021ec85e2661bea5cfdc4483aa62b4b
[INFO] documenting bkase/jsonschema-to-dhall against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkase%2Fjsonschema-to-dhall" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bkase/jsonschema-to-dhall on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bkase/jsonschema-to-dhall
[INFO] finished tweaking git repo https://github.com/bkase/jsonschema-to-dhall
[INFO] tweaked toml for git repo https://github.com/bkase/jsonschema-to-dhall written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/bkase/jsonschema-to-dhall already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded schemars v0.7.2
[INFO] [stderr]   Downloaded schemars_derive v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ff7197df81a7ebe9cb134256ee8d45a69fce02ab83de2fc11ba8b2edb287d1c
[INFO] running `Command { std: "docker" "start" "-a" "6ff7197df81a7ebe9cb134256ee8d45a69fce02ab83de2fc11ba8b2edb287d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ff7197df81a7ebe9cb134256ee8d45a69fce02ab83de2fc11ba8b2edb287d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff7197df81a7ebe9cb134256ee8d45a69fce02ab83de2fc11ba8b2edb287d1c", kill_on_drop: false }`
[INFO] [stdout] 6ff7197df81a7ebe9cb134256ee8d45a69fce02ab83de2fc11ba8b2edb287d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f36c9f0c25249d28dde2eaf24b7e4f89b4ff1079fb5fd1a8e9c177d870507a30
[INFO] running `Command { std: "docker" "start" "-a" "f36c9f0c25249d28dde2eaf24b7e4f89b4ff1079fb5fd1a8e9c177d870507a30", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling schemars v0.7.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling schemars_derive v0.7.2
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]  Documenting jsonschema-to-dhall v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `jsonschema-to-dhall`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name jsonschema_to_dhall src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern schemars=/opt/rustwide/target/debug/deps/libschemars-451f21ffb58f9306.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ddb46f789e231734.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ac070ab6463bdff9.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f36c9f0c25249d28dde2eaf24b7e4f89b4ff1079fb5fd1a8e9c177d870507a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f36c9f0c25249d28dde2eaf24b7e4f89b4ff1079fb5fd1a8e9c177d870507a30", kill_on_drop: false }`
[INFO] [stdout] f36c9f0c25249d28dde2eaf24b7e4f89b4ff1079fb5fd1a8e9c177d870507a30
