[INFO] cloning repository https://github.com/TeXitoi/pt_ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TeXitoi/pt_ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeXitoi%2Fpt_ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeXitoi%2Fpt_ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15dd368ac33121f824c82605617a40b8ae92f61e
[INFO] documenting TeXitoi/pt_ref 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%2FTeXitoi%2Fpt_ref" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TeXitoi/pt_ref 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/TeXitoi/pt_ref
[INFO] finished tweaking git repo https://github.com/TeXitoi/pt_ref
[INFO] tweaked toml for git repo https://github.com/TeXitoi/pt_ref written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/TeXitoi/pt_ref 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]     Updating git repository `https://github.com/CanalTP/navitia_model.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii v0.7.1
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded cc v1.0.15
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.1
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded serde_json v1.0.17
[INFO] [stderr]   Downloaded syn v0.13.4
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded csv v1.0.0-beta.5
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded backtrace v0.3.7
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded env_logger v0.5.9
[INFO] [stderr]   Downloaded strum v0.9.0
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded libc v0.2.40
[INFO] [stderr]   Downloaded strum_macros v0.9.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.8
[INFO] [stderr]   Downloaded serde_derive v1.0.45
[INFO] [stderr]   Downloaded structopt v0.2.8
[INFO] [stderr]   Downloaded serde v1.0.45
[INFO] [stderr]   Downloaded combine v3.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] fa8246931bcc98b0b44db93461f6b7fce54f74ab437379732d374c112febd5d7
[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" "fa8246931bcc98b0b44db93461f6b7fce54f74ab437379732d374c112febd5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa8246931bcc98b0b44db93461f6b7fce54f74ab437379732d374c112febd5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8246931bcc98b0b44db93461f6b7fce54f74ab437379732d374c112febd5d7", kill_on_drop: false }`
[INFO] [stdout] fa8246931bcc98b0b44db93461f6b7fce54f74ab437379732d374c112febd5d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 06e3cddd2c589856b26b8aaf55f3e38460a945bfd916b813041b21218577d1c7
[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" "06e3cddd2c589856b26b8aaf55f3e38460a945bfd916b813041b21218577d1c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking serde v1.0.45
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking strum v0.9.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling syn v0.13.4
[INFO] [stderr]    Compiling get-corresponding-derive v0.1.0 (https://github.com/CanalTP/navitia_model.git#8cd02299)
[INFO] [stderr]    Compiling strum_macros v0.9.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking combine v3.2.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking env_logger v0.5.9
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling structopt-derive v0.2.8
[INFO] [stderr]    Compiling serde_derive v1.0.45
[INFO] [stderr]     Checking structopt v0.2.8
[INFO] [stderr]     Checking csv v1.0.0-beta.5
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking backtrace v0.3.7
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking navitia_model v0.1.0 (https://github.com/CanalTP/navitia_model.git#8cd02299)
[INFO] [stderr]  Documenting pt_ref 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(specialization)]
[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 `pt_ref`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name pt_ref 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 combine=/opt/rustwide/target/debug/deps/libcombine-bec7d322a910fd8c.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-e69df2ec70345e95.rmeta --extern humantime=/opt/rustwide/target/debug/deps/libhumantime-c50fbfabbaf7db0f.rmeta --extern navitia_model=/opt/rustwide/target/debug/deps/libnavitia_model-4f51be582deb7058.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ec2b7cfc95fc298a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-c13743ef02327f0b.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-07c46f2934c75e54.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-0d3c23dc368e36d1.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-970705d32872a2d4.so --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "06e3cddd2c589856b26b8aaf55f3e38460a945bfd916b813041b21218577d1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e3cddd2c589856b26b8aaf55f3e38460a945bfd916b813041b21218577d1c7", kill_on_drop: false }`
[INFO] [stdout] 06e3cddd2c589856b26b8aaf55f3e38460a945bfd916b813041b21218577d1c7