[INFO] cloning repository https://github.com/akitsu-sanae/ysd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akitsu-sanae/ysd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakitsu-sanae%2Fysd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakitsu-sanae%2Fysd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f4b95746c96c2a459ed2b0112e7ec4a58f2c658
[INFO] documenting akitsu-sanae/ysd against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakitsu-sanae%2Fysd" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akitsu-sanae/ysd on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akitsu-sanae/ysd
[INFO] finished tweaking git repo https://github.com/akitsu-sanae/ysd
[INFO] tweaked toml for git repo https://github.com/akitsu-sanae/ysd written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/akitsu-sanae/ysd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--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 v0.15.42
[INFO] [stderr]   Downloaded backtrace v0.3.33
[INFO] [stderr]   Downloaded cc v1.0.38
[INFO] [stderr]   Downloaded serde_derive v1.0.97
[INFO] [stderr]   Downloaded serde v1.0.97
[INFO] [stderr]   Downloaded libc v0.2.60
[INFO] [stderr]   Downloaded backtrace-sys v0.1.31
[INFO] [stderr]   Downloaded dirs-sys v0.3.3
[INFO] [stderr]   Downloaded dirs v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca964c2c58bddbd6c0b04f45f2673e5a92b9ec32497f90db68ddb00b6003dd95
[INFO] running `Command { std: "docker" "start" "-a" "ca964c2c58bddbd6c0b04f45f2673e5a92b9ec32497f90db68ddb00b6003dd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca964c2c58bddbd6c0b04f45f2673e5a92b9ec32497f90db68ddb00b6003dd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca964c2c58bddbd6c0b04f45f2673e5a92b9ec32497f90db68ddb00b6003dd95", kill_on_drop: false }`
[INFO] [stdout] ca964c2c58bddbd6c0b04f45f2673e5a92b9ec32497f90db68ddb00b6003dd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bb461456e915cf9643a8fd1d116348ce4394dd1053a31fdd4006648f661a837
[INFO] running `Command { std: "docker" "start" "-a" "7bb461456e915cf9643a8fd1d116348ce4394dd1053a31fdd4006648f661a837", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]  Documenting ysd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/drawer.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for i in { 0..frame.height } {
[INFO] [stdout]    |              ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 35 -     for i in { 0..frame.height } {
[INFO] [stdout] 35 +     for i in 0..frame.height {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]    --> src/drawer.rs:110:22
[INFO] [stdout]     |
[INFO] [stdout] 110 |             for i in { 0..frame.height } {
[INFO] [stdout]     |                      ^^               ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 110 -             for i in { 0..frame.height } {
[INFO] [stdout] 110 +             for i in 0..frame.height {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `try_trait`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ysd`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name ysd src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=34dd44257cdcfcd2 -L dependency=/opt/rustwide/target/debug/deps --extern dirs=/opt/rustwide/target/debug/deps/libdirs-faf4a9db2797a576.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e4fd60dc49ccd72a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-55af434cedd444ac.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-88b82a606b33d3ef.so --extern termion=/opt/rustwide/target/debug/deps/libtermion-9036e9ce0437b7fc.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-59ce1c3ee5d70b93.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "7bb461456e915cf9643a8fd1d116348ce4394dd1053a31fdd4006648f661a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb461456e915cf9643a8fd1d116348ce4394dd1053a31fdd4006648f661a837", kill_on_drop: false }`
[INFO] [stdout] 7bb461456e915cf9643a8fd1d116348ce4394dd1053a31fdd4006648f661a837