[INFO] cloning repository https://github.com/kkysen/CanvasFileSync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kkysen/CanvasFileSync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkysen%2FCanvasFileSync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkysen%2FCanvasFileSync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bba42615013861ba275981e00383ed08473a858
[INFO] documenting kkysen/CanvasFileSync against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkkysen%2FCanvasFileSync" "/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/kkysen/CanvasFileSync on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kkysen/CanvasFileSync
[INFO] finished tweaking git repo https://github.com/kkysen/CanvasFileSync
[INFO] tweaked toml for git repo https://github.com/kkysen/CanvasFileSync written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kkysen/CanvasFileSync already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "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] 5e6daf95f93bc22947c5856a52755cd44cd4fcbb8578e37c53742d82c4d0f6ed
[INFO] running `Command { std: "docker" "start" "-a" "5e6daf95f93bc22947c5856a52755cd44cd4fcbb8578e37c53742d82c4d0f6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e6daf95f93bc22947c5856a52755cd44cd4fcbb8578e37c53742d82c4d0f6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6daf95f93bc22947c5856a52755cd44cd4fcbb8578e37c53742d82c4d0f6ed", kill_on_drop: false }`
[INFO] [stdout] 5e6daf95f93bc22947c5856a52755cd44cd4fcbb8578e37c53742d82c4d0f6ed
[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" "+1.46.0" "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] 83bb6b3df9c7da304402703b0eeffbd1e1b5c650d98d1903f9a3e666f5acade3
[INFO] running `Command { std: "docker" "start" "-a" "83bb6b3df9c7da304402703b0eeffbd1e1b5c650d98d1903f9a3e666f5acade3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling isahc v0.9.1
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling isahc v0.8.2
[INFO] [stderr]     Checking ahash v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking byte-pool v0.2.1
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]     Checking omnom v2.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking halfbrown v0.1.11
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking filetime v0.2.9
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling backtrace v0.3.43
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling graphql-parser v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking http-types v1.2.0
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking optional v0.5.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking async-h1 v1.1.2
[INFO] [stderr]     Checking http-client v2.0.0
[INFO] [stderr]    Compiling graphql-introspection-query v0.1.0
[INFO] [stderr]     Checking surf v2.0.0-alpha.1
[INFO] [stderr]    Compiling graphql_client_codegen v0.9.0
[INFO] [stderr]    Compiling graphql_query_derive v0.9.0
[INFO] [stderr]     Checking graphql_client v0.9.0
[INFO] [stderr]  Documenting canvas-file-sync 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(move_ref_pattern)]
[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 `canvas-file-sync`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name canvas_file_sync 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 async_std=/opt/rustwide/target/debug/deps/libasync_std-2157ee1da3395222.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-5ea007aaee3d9501.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-640f3f0b10064291.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-5a718340589430af.rmeta --extern filetime=/opt/rustwide/target/debug/deps/libfiletime-b43387f0ca67a37e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-78c5ac2104f56a11.rmeta --extern graphql_client=/opt/rustwide/target/debug/deps/libgraphql_client-57ad15ea5036b1a9.rmeta --extern halfbrown=/opt/rustwide/target/debug/deps/libhalfbrown-f38475d8eadf7a54.rmeta --extern http_types=/opt/rustwide/target/debug/deps/libhttp_types-4a16ebd492a2917e.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-5f47dd08d4de5f49.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-17453230b6f361e1.rmeta --extern optional=/opt/rustwide/target/debug/deps/liboptional-77e06729975aaef9.rmeta --extern paw=/opt/rustwide/target/debug/deps/libpaw-409165dfe2c97ee3.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c57bc4d64c4ba1e9.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a8114e229abcf657.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-2b175b5d84ca363f.rmeta --extern surf=/opt/rustwide/target/debug/deps/libsurf-3467a164280fe083.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-72ead3ebf3ce29a8.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "83bb6b3df9c7da304402703b0eeffbd1e1b5c650d98d1903f9a3e666f5acade3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83bb6b3df9c7da304402703b0eeffbd1e1b5c650d98d1903f9a3e666f5acade3", kill_on_drop: false }`
[INFO] [stdout] 83bb6b3df9c7da304402703b0eeffbd1e1b5c650d98d1903f9a3e666f5acade3