[INFO] cloning repository https://github.com/mgdm/med
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgdm/med" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgdm%2Fmed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgdm%2Fmed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0694c96dd315d61da16b0836c12c5ed18af5815f
[INFO] documenting mgdm/med 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%2Fmgdm%2Fmed" "/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/mgdm/med 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/mgdm/med
[INFO] finished tweaking git repo https://github.com/mgdm/med
[INFO] tweaked toml for git repo https://github.com/mgdm/med written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mgdm/med 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 text_io v0.1.6
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77af7febe4b9592e42e158905e7f4e9df61d332a18762913c70fd7aafc567330
[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" "77af7febe4b9592e42e158905e7f4e9df61d332a18762913c70fd7aafc567330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77af7febe4b9592e42e158905e7f4e9df61d332a18762913c70fd7aafc567330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77af7febe4b9592e42e158905e7f4e9df61d332a18762913c70fd7aafc567330", kill_on_drop: false }`
[INFO] [stdout] 77af7febe4b9592e42e158905e7f4e9df61d332a18762913c70fd7aafc567330
[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" "+beta-2020-08-29" "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] 1f0de082d2cecdc249a119088182e51b64710c1bffe8a7882c0ca5d817820149
[INFO] running `Command { std: "docker" "start" "-a" "1f0de082d2cecdc249a119088182e51b64710c1bffe8a7882c0ca5d817820149", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking text_io v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]  Documenting med v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/screen.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 .map({ |_| "~\r\n" })
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/screen.rs:89:18
[INFO] [stdout]    |
[INFO] [stdout] 89 |             .map({ |_| "~\r\n" })
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/screen.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 93 |             .map({ |_| " " })
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/screen.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |             .map({ |_| "~\r\n" })
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     (c as u8 & 0x1f)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "1f0de082d2cecdc249a119088182e51b64710c1bffe8a7882c0ca5d817820149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0de082d2cecdc249a119088182e51b64710c1bffe8a7882c0ca5d817820149", kill_on_drop: false }`
[INFO] [stdout] 1f0de082d2cecdc249a119088182e51b64710c1bffe8a7882c0ca5d817820149