[INFO] cloning repository https://github.com/In-line/rust_2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/In-line/rust_2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIn-line%2Frust_2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIn-line%2Frust_2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 274ac45ea39b937231971d0cf368641ce1fa7b7e
[INFO] documenting In-line/rust_2048 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%2FIn-line%2Frust_2048" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/In-line/rust_2048 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/In-line/rust_2048
[INFO] finished tweaking git repo https://github.com/In-line/rust_2048
[INFO] tweaked toml for git repo https://github.com/In-line/rust_2048 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/In-line/rust_2048 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 tempfile v2.1.6
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.33.0
[INFO] [stderr]   Downloaded serde v1.0.12
[INFO] [stderr]   Downloaded pistoncore-window v0.28.0
[INFO] [stderr]   Downloaded png v0.9.0
[INFO] [stderr]   Downloaded image v0.15.0
[INFO] [stderr]   Downloaded getopts v0.2.15
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded futures v0.1.15
[INFO] [stderr]   Downloaded pistoncore-input v0.19.0
[INFO] [stderr]   Downloaded piston v0.33.0
[INFO] [stderr]   Downloaded itertools v0.6.2
[INFO] [stderr]   Downloaded serde_derive v1.0.12
[INFO] [stderr]   Downloaded gl v0.6.3
[INFO] [stderr]   Downloaded clippy v0.0.157
[INFO] [stderr]   Downloaded clippy_lints v0.0.157
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded deflate v0.7.16
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.46.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.39.0
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 81932c898cfa3433e93716e2e95bf9c6ac72b270f5ca52e4fa12c465a3cc8f4b
[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" "81932c898cfa3433e93716e2e95bf9c6ac72b270f5ca52e4fa12c465a3cc8f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81932c898cfa3433e93716e2e95bf9c6ac72b270f5ca52e4fa12c465a3cc8f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81932c898cfa3433e93716e2e95bf9c6ac72b270f5ca52e4fa12c465a3cc8f4b", kill_on_drop: false }`
[INFO] [stdout] 81932c898cfa3433e93716e2e95bf9c6ac72b270f5ca52e4fa12c465a3cc8f4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d11bf67f7fb04e9b1430360d4ee1319bf93b36b827cd4775063efba568952095
[INFO] running `Command { std: "docker" "start" "-a" "d11bf67f7fb04e9b1430360d4ee1319bf93b36b827cd4775063efba568952095", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]    Compiling itoa v0.3.3
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking futures v0.1.15
[INFO] [stderr]     Checking shader_version v0.2.2
[INFO] [stderr]    Compiling serde v1.0.12
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]    Compiling pulldown-cmark v0.0.15
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling getopts v0.2.15
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking read_color v0.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stdout] error[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33
[INFO] [stdout]      |
[INFO] [stdout] 978  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stdout]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stdout] ...
[INFO] [stdout] 982  |         state = match (state, whitespace, limit) {
[INFO] [stdout]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stdout] ...
[INFO] [stdout] 1033 |     while cont && match state { B | C => true, A => false } {
[INFO] [stdout]      |                                 ^ use of borrowed `state`
[INFO] [stdout] 1034 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stdout]      |         ------- borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0503`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `getopts`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d11bf67f7fb04e9b1430360d4ee1319bf93b36b827cd4775063efba568952095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d11bf67f7fb04e9b1430360d4ee1319bf93b36b827cd4775063efba568952095", kill_on_drop: false }`
[INFO] [stdout] d11bf67f7fb04e9b1430360d4ee1319bf93b36b827cd4775063efba568952095