[INFO] cloning repository https://github.com/jonathanmcelroy/rust_progress_file_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonathanmcelroy/rust_progress_file_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonathanmcelroy%2Frust_progress_file_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonathanmcelroy%2Frust_progress_file_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dca5424957121c256051f1e0825db8dd41135318
[INFO] documenting jonathanmcelroy/rust_progress_file_server 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%2Fjonathanmcelroy%2Frust_progress_file_server" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonathanmcelroy/rust_progress_file_server 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/jonathanmcelroy/rust_progress_file_server
[INFO] finished tweaking git repo https://github.com/jonathanmcelroy/rust_progress_file_server
[INFO] tweaked toml for git repo https://github.com/jonathanmcelroy/rust_progress_file_server written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jonathanmcelroy/rust_progress_file_server 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 rocket_codegen v0.1.5
[INFO] [stderr]   Downloaded rocket v0.1.5
[INFO] [stderr]   Downloaded rocket_contrib v0.1.5
[INFO] [stderr]   Downloaded rust-ini v0.10.0
[INFO] [stderr]   Downloaded same-file v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5091e38fa4ffff5c615f47452ac507b3ccc3b8a1964e37c0b9b7b40fba623765
[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" "5091e38fa4ffff5c615f47452ac507b3ccc3b8a1964e37c0b9b7b40fba623765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5091e38fa4ffff5c615f47452ac507b3ccc3b8a1964e37c0b9b7b40fba623765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5091e38fa4ffff5c615f47452ac507b3ccc3b8a1964e37c0b9b7b40fba623765", kill_on_drop: false }`
[INFO] [stdout] 5091e38fa4ffff5c615f47452ac507b3ccc3b8a1964e37c0b9b7b40fba623765
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 07a134dba5eb86fc60ebb31477bb086c20aa474d690c257c3d21ec2aa451a87e
[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" "07a134dba5eb86fc60ebb31477bb086c20aa474d690c257c3d21ec2aa451a87e", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.3
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking same-file v0.1.2
[INFO] [stderr]     Checking rust-ini v0.10.0
[INFO] [stderr]    Compiling rocket_codegen v0.1.5
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num_cpus v1.2.1
[INFO] [stderr]     Checking idna v0.1.0
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling unicode-bidi v0.2.4
[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/rocket_codegen-0.1.5/build.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling term v0.4.4
[INFO] [stderr]    Compiling unicase v1.4.0
[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: could not compile `rocket_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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "07a134dba5eb86fc60ebb31477bb086c20aa474d690c257c3d21ec2aa451a87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a134dba5eb86fc60ebb31477bb086c20aa474d690c257c3d21ec2aa451a87e", kill_on_drop: false }`
[INFO] [stdout] 07a134dba5eb86fc60ebb31477bb086c20aa474d690c257c3d21ec2aa451a87e