[INFO] cloning repository https://github.com/mkpankov/rustler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkpankov/rustler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkpankov%2Frustler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkpankov%2Frustler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4af5e46e671e3e39a749ab71346e935cedaa618b
[INFO] documenting mkpankov/rustler 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%2Fmkpankov%2Frustler" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkpankov/rustler 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/mkpankov/rustler
[INFO] finished tweaking git repo https://github.com/mkpankov/rustler
[INFO] tweaked toml for git repo https://github.com/mkpankov/rustler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mkpankov/rustler 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]  Downloading crates ...
[INFO] [stderr]   Downloaded bzip2 v0.3.2
[INFO] [stderr]   Downloaded magenta-sys v0.1.1
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded scopeguard v0.3.2
[INFO] [stderr]   Downloaded state v0.3.1
[INFO] [stderr]   Downloaded url v1.5.1
[INFO] [stderr]   Downloaded nodrop v0.1.9
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded podio v0.1.5
[INFO] [stderr]   Downloaded miniz-sys v0.1.9
[INFO] [stderr]   Downloaded rocket_codegen v0.3.2
[INFO] [stderr]   Downloaded magenta v0.1.1
[INFO] [stderr]   Downloaded serde v1.0.11
[INFO] [stderr]   Downloaded either v1.1.0
[INFO] [stderr]   Downloaded rand v0.3.16
[INFO] [stderr]   Downloaded ordermap v0.2.10
[INFO] [stderr]   Downloaded arrayvec v0.4.0
[INFO] [stderr]   Downloaded rocket v0.3.2
[INFO] [stderr]   Downloaded num v0.1.40
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded untrusted v0.5.0
[INFO] [stderr]   Downloaded yansi v0.3.3
[INFO] [stderr]   Downloaded itoa v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.29
[INFO] [stderr]   Downloaded serde_derive v1.0.11
[INFO] [stderr]   Downloaded bzip2-sys v0.1.5
[INFO] [stderr]   Downloaded gcc v0.3.53
[INFO] [stderr]   Downloaded isatty v0.1.3
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.30
[INFO] [stderr]   Downloaded futures v0.1.14
[INFO] [stderr]   Downloaded zip v0.2.6
[INFO] [stderr]   Downloaded cookie v0.9.1
[INFO] [stderr]   Downloaded hyper v0.10.12
[INFO] [stderr]   Downloaded rocket_contrib v0.3.2
[INFO] [stderr]   Downloaded flate2 v0.2.19
[INFO] [stderr]   Downloaded num_cpus v1.6.2
[INFO] [stderr]   Downloaded msdos_time v0.1.5
[INFO] [stderr]   Downloaded smallvec v0.4.2
[INFO] [stderr]   Downloaded odds v0.2.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b2ed90bd423bd1427928f024138de6f06349fbe00f6b40a3e9ffe79816eef47a
[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" "b2ed90bd423bd1427928f024138de6f06349fbe00f6b40a3e9ffe79816eef47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2ed90bd423bd1427928f024138de6f06349fbe00f6b40a3e9ffe79816eef47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ed90bd423bd1427928f024138de6f06349fbe00f6b40a3e9ffe79816eef47a", kill_on_drop: false }`
[INFO] [stdout] b2ed90bd423bd1427928f024138de6f06349fbe00f6b40a3e9ffe79816eef47a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23a7e06748522d9e45c8d2e71647b0005dcb9dd7f7df46237ab1984565f6efab
[INFO] running `Command { std: "docker" "start" "-a" "23a7e06748522d9e45c8d2e71647b0005dcb9dd7f7df46237ab1984565f6efab", 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]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling futures v0.1.14
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling yansi v0.3.3
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling pear_codegen v0.0.10
[INFO] [stderr]    Compiling untrusted v0.5.0
[INFO] [stderr]    Compiling serde v1.0.11
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.10/src/lib.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, rustc_private, quote)]
[INFO] [stdout]   |                                             ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.10/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate rustc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: please recompile that crate using --crate-type lib
[INFO] [stdout]   = note: the following crate versions were found:
[INFO] [stdout]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-08-29-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.tsan.a
[INFO] [stdout]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-08-29-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.lsan.a
[INFO] [stdout]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-08-29-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.msan.a
[INFO] [stdout]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-08-29-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.asan.a
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pear_codegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.3/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_fn))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "23a7e06748522d9e45c8d2e71647b0005dcb9dd7f7df46237ab1984565f6efab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a7e06748522d9e45c8d2e71647b0005dcb9dd7f7df46237ab1984565f6efab", kill_on_drop: false }`
[INFO] [stdout] 23a7e06748522d9e45c8d2e71647b0005dcb9dd7f7df46237ab1984565f6efab