[INFO] cloning repository https://github.com/JonathanWoollett-Light/stellaris-performance-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JonathanWoollett-Light/stellaris-performance-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fstellaris-performance-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fstellaris-performance-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f02f9f17e84344529635cf80588cecfaf2343035
[INFO] documenting JonathanWoollett-Light/stellaris-performance-test 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%2FJonathanWoollett-Light%2Fstellaris-performance-test" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JonathanWoollett-Light/stellaris-performance-test 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/JonathanWoollett-Light/stellaris-performance-test
[INFO] finished tweaking git repo https://github.com/JonathanWoollett-Light/stellaris-performance-test
[INFO] tweaked toml for git repo https://github.com/JonathanWoollett-Light/stellaris-performance-test written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/JonathanWoollett-Light/stellaris-performance-test 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 arrayfire v3.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 7152c3239d48966f77861f6d38940a11d95aa7af748c5f7a2925207aa0481fcf
[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" "7152c3239d48966f77861f6d38940a11d95aa7af748c5f7a2925207aa0481fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7152c3239d48966f77861f6d38940a11d95aa7af748c5f7a2925207aa0481fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7152c3239d48966f77861f6d38940a11d95aa7af748c5f7a2925207aa0481fcf", kill_on_drop: false }`
[INFO] [stdout] 7152c3239d48966f77861f6d38940a11d95aa7af748c5f7a2925207aa0481fcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4e4cf1cb4a5e67fe1bde990d3445556cd81db96e048bbbae859d1b8eab10fb52
[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" "4e4cf1cb4a5e67fe1bde990d3445556cd81db96e048bbbae859d1b8eab10fb52", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]    Compiling arrayfire v3.7.0
[INFO] [stderr]  Documenting stellaris-performance-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]    --> src/empire_optimization.rs:118:89
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let multiplied_production = mul(&summed_production,compressed_species_muls,true)
[INFO] [stdout]     |                                                                                         ^ help: add `;` here
[INFO] [stdout] ...
[INFO] [stdout] 121 |         let imerial_market_values = &self.modifier.multiplier * market_values;
[INFO] [stdout]     |         --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are experimental
[INFO] [stdout]    --> src/empire_optimization.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let compressed_employability_mask = species_employability_mask * empire_species_employability_mask;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[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] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `stellaris-performance-test`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name stellaris_performance_test 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 arrayfire=/opt/rustwide/target/debug/deps/libarrayfire-7ec7d7a8d168a870.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-03bd3f862217c9a8.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-c4b4b06f015fed8b.rmeta --extern num_format=/opt/rustwide/target/debug/deps/libnum_format-8c42ab5097c278e9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-c38880f5f03aa648.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-08b9c80aa847749e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a7c30a965177c314.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-567918b065ea5fc9.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "4e4cf1cb4a5e67fe1bde990d3445556cd81db96e048bbbae859d1b8eab10fb52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4cf1cb4a5e67fe1bde990d3445556cd81db96e048bbbae859d1b8eab10fb52", kill_on_drop: false }`
[INFO] [stdout] 4e4cf1cb4a5e67fe1bde990d3445556cd81db96e048bbbae859d1b8eab10fb52