[INFO] cloning repository https://github.com/leo60228/axiom-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leo60228/axiom-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Faxiom-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Faxiom-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6dd21ee2d89793bd3de22c05f57515583e6eb62a
[INFO] documenting leo60228/axiom-demo against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleo60228%2Faxiom-demo" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leo60228/axiom-demo on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leo60228/axiom-demo
[INFO] finished tweaking git repo https://github.com/leo60228/axiom-demo
[INFO] tweaked toml for git repo https://github.com/leo60228/axiom-demo written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/leo60228/axiom-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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 typetag-impl v0.1.3
[INFO] [stderr]   Downloaded typetag v0.1.3
[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-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] 24cb4a98e350a83efb22ab1bcf9f61d0f32b01df87cc3947e8b47355c0d0b341
[INFO] running `Command { std: "docker" "start" "-a" "24cb4a98e350a83efb22ab1bcf9f61d0f32b01df87cc3947e8b47355c0d0b341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24cb4a98e350a83efb22ab1bcf9f61d0f32b01df87cc3947e8b47355c0d0b341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24cb4a98e350a83efb22ab1bcf9f61d0f32b01df87cc3947e8b47355c0d0b341", kill_on_drop: false }`
[INFO] [stdout] 24cb4a98e350a83efb22ab1bcf9f61d0f32b01df87cc3947e8b47355c0d0b341
[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" "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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1878248c309f24a6decbb5d0230fdbfa663f511573d9392338e1330491fac905
[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" "1878248c309f24a6decbb5d0230fdbfa663f511573d9392338e1330491fac905", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling typetag-impl v0.1.3
[INFO] [stderr]     Checking inventory v0.1.3
[INFO] [stderr]     Checking serde v1.0.97
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking typetag v0.1.3
[INFO] [stderr]  Documenting testing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use #[typetag::serde(name = "...")] to specify a unique name
[INFO] [stdout]   --> src/main.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 |         impl Message for $ty {}
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 | impl_message!(CanSerde);
[INFO] [stdout]    | ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use #[typetag::serde(name = "...")] to specify a unique name
[INFO] [stdout]   --> src/main.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 |         impl Message for $ty {}
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 | impl_message!(i32);
[INFO] [stdout]    | ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `testing`.
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name testing 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 downcast_rs=/opt/rustwide/target/debug/deps/libdowncast_rs-539c965f00b34142.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ee370a8bc71667d0.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-34f404297777cca1.rmeta --extern typetag=/opt/rustwide/target/debug/deps/libtypetag-70115d8802d8e36e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1878248c309f24a6decbb5d0230fdbfa663f511573d9392338e1330491fac905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1878248c309f24a6decbb5d0230fdbfa663f511573d9392338e1330491fac905", kill_on_drop: false }`
[INFO] [stdout] 1878248c309f24a6decbb5d0230fdbfa663f511573d9392338e1330491fac905