[INFO] cloning repository https://github.com/samscott89/olaf2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samscott89/olaf2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamscott89%2Folaf2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamscott89%2Folaf2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a664605fc11021e2f6ceb9fed0c678da73925c4
[INFO] documenting samscott89/olaf2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamscott89%2Folaf2" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samscott89/olaf2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samscott89/olaf2
[INFO] finished tweaking git repo https://github.com/samscott89/olaf2
[INFO] tweaked toml for git repo https://github.com/samscott89/olaf2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/samscott89/olaf2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "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] 7c2e15635ef96c1cd3f5f3c455c5664be337c6447ca611794f97cc0b9ebd34a6
[INFO] running `Command { std: "docker" "start" "-a" "7c2e15635ef96c1cd3f5f3c455c5664be337c6447ca611794f97cc0b9ebd34a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c2e15635ef96c1cd3f5f3c455c5664be337c6447ca611794f97cc0b9ebd34a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c2e15635ef96c1cd3f5f3c455c5664be337c6447ca611794f97cc0b9ebd34a6", kill_on_drop: false }`
[INFO] [stdout] 7c2e15635ef96c1cd3f5f3c455c5664be337c6447ca611794f97cc0b9ebd34a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40273d4d92007c666af9db9836427de69309435bc1fbe91eee628247c8e5d9be
[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" "40273d4d92007c666af9db9836427de69309435bc1fbe91eee628247c8e5d9be", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking dtoa v0.4.3
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[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking open v1.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling actix-web v0.7.8
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking encoding_rs v0.8.7
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
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[INFO] [stderr]     Checking rand v0.5.5
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[INFO] [stderr]     Checking rand v0.4.3
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[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
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[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking resolv-conf v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking encoding v0.2.33
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[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking tokio-io v0.1.9
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling quote v0.6.8
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[INFO] [stderr]     Checking tokio-current-thread v0.1.3
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[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]    Compiling libz-sys v1.0.23
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling curl-sys v0.4.12
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.7
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking flate2 v1.0.2
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-signal v0.2.5
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking error-chain v0.1.12
[INFO] [stderr]     Checking tokio v0.1.10
[INFO] [stderr]     Checking trust-dns-proto v0.4.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking trust-dns-resolver v0.9.1
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking serde_json v1.0.31
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking toml v0.4.7
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking simplelog v0.5.2
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking reqwest v0.9.2
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking curl v0.4.17
[INFO] [stderr]    Compiling actix_derive v0.3.0
[INFO] [stderr]    Compiling abscissa_derive v0.0.2
[INFO] [stderr]     Checking serde_qs v0.4.1
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking oauth2 v2.0.0-alpha.2 (https://github.com/ramosbugs/oauth2-rs#f0cf5da5)
[INFO] [stderr]     Checking actix v0.7.4
[INFO] [stderr]     Checking abscissa v0.0.4
[INFO] [stderr]  Documenting olaf2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | #![feature(uniform_paths)]
[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 `olaf2`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name olaf2 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern abscissa=/opt/rustwide/target/debug/deps/libabscissa-63671b8d568068a2.rmeta --extern actix=/opt/rustwide/target/debug/deps/libactix-5799474b51a230a5.rmeta --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-c02e1d05e7da5c40.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-8f238e74710b96f2.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-2754ca85aa96cbd9.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-12ccbd4309e2732d.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-5e50a2c48f1e7e75.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-ebcbda27f3271997.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b529dcb425c9e83a.rmeta --extern oauth2=/opt/rustwide/target/debug/deps/liboauth2-86621d0c17fe2d0a.rmeta --extern open=/opt/rustwide/target/debug/deps/libopen-6db2aba712be62d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-38abf4ae9700d3e4.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-e0ee1b125694011b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ed6518fb97d403cb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e416145ba07b753a.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-60ec9339a39ec560.rmeta --extern serde_qs=/opt/rustwide/target/debug/deps/libserde_qs-611b38b050d5c0da.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-ccb58ba5cafa247d.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-36ab6357d5d66d04.rmeta --extern url_serde=/opt/rustwide/target/debug/deps/liburl_serde-d7b66240161d4f77.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "40273d4d92007c666af9db9836427de69309435bc1fbe91eee628247c8e5d9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40273d4d92007c666af9db9836427de69309435bc1fbe91eee628247c8e5d9be", kill_on_drop: false }`
[INFO] [stdout] 40273d4d92007c666af9db9836427de69309435bc1fbe91eee628247c8e5d9be
