[INFO] cloning repository https://github.com/micouy/dodo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/micouy/dodo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicouy%2Fdodo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicouy%2Fdodo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b960be855efe89c34f13bdd0532ca6e2145db46b
[INFO] documenting micouy/dodo against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicouy%2Fdodo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/micouy/dodo 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 git repo https://github.com/micouy/dodo
[INFO] finished tweaking git repo https://github.com/micouy/dodo
[INFO] tweaked toml for git repo https://github.com/micouy/dodo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/micouy/dodo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-enum-error v0.0.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded daggy v0.7.0
[INFO] [stderr]   Downloaded dynfmt v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 596964ae1f542fb6c121f5bb8e6de3b826a0a3d7880b3014a809cae4b7d17b10
[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" "596964ae1f542fb6c121f5bb8e6de3b826a0a3d7880b3014a809cae4b7d17b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "596964ae1f542fb6c121f5bb8e6de3b826a0a3d7880b3014a809cae4b7d17b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596964ae1f542fb6c121f5bb8e6de3b826a0a3d7880b3014a809cae4b7d17b10", kill_on_drop: false }`
[INFO] [stdout] 596964ae1f542fb6c121f5bb8e6de3b826a0a3d7880b3014a809cae4b7d17b10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b07e66e8d8f1ec0715882220542d2029bdc9ab2d4529869abdbf9dcf0461cc12
[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" "b07e66e8d8f1ec0715882220542d2029bdc9ab2d4529869abdbf9dcf0461cc12", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling derive-enum-error v0.0.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking daggy v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking dynfmt v0.1.4
[INFO] [stderr]  Documenting dodo 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(result_flattening)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `dodo`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name dodo 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 ansi_term=/opt/rustwide/target/debug/deps/libansi_term-4180737bb07af6bb.rmeta --extern daggy=/opt/rustwide/target/debug/deps/libdaggy-a4f30653894d21fb.rmeta --extern dynfmt=/opt/rustwide/target/debug/deps/libdynfmt-10704c5db0b44177.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8b4f48a3ccb141ed.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-cfcf3e0a333955fc.rmeta --extern twox_hash=/opt/rustwide/target/debug/deps/libtwox_hash-1b5aff979a0ee6fc.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "b07e66e8d8f1ec0715882220542d2029bdc9ab2d4529869abdbf9dcf0461cc12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b07e66e8d8f1ec0715882220542d2029bdc9ab2d4529869abdbf9dcf0461cc12", kill_on_drop: false }`
[INFO] [stdout] b07e66e8d8f1ec0715882220542d2029bdc9ab2d4529869abdbf9dcf0461cc12
