[INFO] cloning repository https://github.com/KeisukeToyota/gstats
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KeisukeToyota/gstats" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeisukeToyota%2Fgstats", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeisukeToyota%2Fgstats'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcbb41505afb717a05937e61ea17319698441508
[INFO] documenting KeisukeToyota/gstats 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%2FKeisukeToyota%2Fgstats" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KeisukeToyota/gstats 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/KeisukeToyota/gstats
[INFO] finished tweaking git repo https://github.com/KeisukeToyota/gstats
[INFO] tweaked toml for git repo https://github.com/KeisukeToyota/gstats written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/KeisukeToyota/gstats 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded tokio-reactor v0.1.11
[INFO] [stderr]   Downloaded smallvec v0.6.13
[INFO] [stderr]   Downloaded parking_lot v0.9.0
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.6
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded hyper v0.12.35
[INFO] [stderr]   Downloaded adler32 v1.0.4
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded ryu v1.0.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
[INFO] [stderr]   Downloaded either v1.5.3
[INFO] [stderr]   Downloaded maybe-uninit v2.0.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded encoding_rs v0.8.20
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded version_check v0.9.1
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded publicsuffix v1.5.4
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded tokio-sync v0.1.7
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded security-framework v0.3.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.3
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded memoffset v0.5.3
[INFO] [stderr]   Downloaded tokio-executor v0.1.9
[INFO] [stderr]   Downloaded c2-chacha v0.2.3
[INFO] [stderr]   Downloaded futures v0.1.29
[INFO] [stderr]   Downloaded unicase v2.6.0
[INFO] [stderr]   Downloaded reqwest v0.9.22
[INFO] [stderr]   Downloaded serde_json v1.0.44
[INFO] [stderr]   Downloaded miniz_oxide v0.3.5
[INFO] [stderr]   Downloaded security-framework-sys v0.3.3
[INFO] [stderr]   Downloaded lock_api v0.3.2
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded iovec v0.1.4
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded http v0.1.21
[INFO] [stderr]   Downloaded mime v0.3.14
[INFO] [stderr]   Downloaded cc v1.0.48
[INFO] [stderr]   Downloaded vcpkg v0.2.8
[INFO] [stderr]   Downloaded seahorse v0.2.5
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded tokio-timer v0.2.12
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded openssl v0.10.26
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.53
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] e2cba68494fd7ff7213576961d798f6f8a10dfc15d83ebba7eea8a39bd7be1cb
[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" "e2cba68494fd7ff7213576961d798f6f8a10dfc15d83ebba7eea8a39bd7be1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2cba68494fd7ff7213576961d798f6f8a10dfc15d83ebba7eea8a39bd7be1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2cba68494fd7ff7213576961d798f6f8a10dfc15d83ebba7eea8a39bd7be1cb", kill_on_drop: false }`
[INFO] [stdout] e2cba68494fd7ff7213576961d798f6f8a10dfc15d83ebba7eea8a39bd7be1cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 8aaa4561cf6b80141f9fd611b53e857b2fa2a41c21157cde78136819787a78df
[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" "8aaa4561cf6b80141f9fd611b53e857b2fa2a41c21157cde78136819787a78df", kill_on_drop: false }`
[INFO] [stderr]     Checking seahorse v0.2.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]  Documenting gstats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `GITHUB_TOKEN` not defined
[INFO] [stdout]   --> src/lib/commands.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let token = env!("GITHUB_TOKEN");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `GITHUB_TOKEN` not defined
[INFO] [stdout]   --> src/lib/commands.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let token = env!("GITHUB_TOKEN");
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `gstats`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gstats 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 reqwest=/opt/rustwide/target/debug/deps/libreqwest-b670ed18defa6ff1.rmeta --extern seahorse=/opt/rustwide/target/debug/deps/libseahorse-c9b0bcf14f40ba7b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-304e91a3f5e65392.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-44abed794efa1c56.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "8aaa4561cf6b80141f9fd611b53e857b2fa2a41c21157cde78136819787a78df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aaa4561cf6b80141f9fd611b53e857b2fa2a41c21157cde78136819787a78df", kill_on_drop: false }`
[INFO] [stdout] 8aaa4561cf6b80141f9fd611b53e857b2fa2a41c21157cde78136819787a78df