[INFO] cloning repository https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForPrakWS19-20%2Fforprak_rust_ws_19-20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForPrakWS19-20%2Fforprak_rust_ws_19-20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbd528f2ba5a3190be43e7f757c5cdaf550734e7
[INFO] documenting ForPrakWS19-20/forprak_rust_ws_19-20 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FForPrakWS19-20%2Fforprak_rust_ws_19-20" "/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/ForPrakWS19-20/forprak_rust_ws_19-20 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20
[INFO] finished tweaking git repo https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20
[INFO] tweaked toml for git repo https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ForPrakWS19-20/forprak_rust_ws_19-20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98d745977253facf77425970281103ddd226665c9fe3b9896d63aafb35608457
[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" "98d745977253facf77425970281103ddd226665c9fe3b9896d63aafb35608457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98d745977253facf77425970281103ddd226665c9fe3b9896d63aafb35608457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98d745977253facf77425970281103ddd226665c9fe3b9896d63aafb35608457", kill_on_drop: false }`
[INFO] [stdout] 98d745977253facf77425970281103ddd226665c9fe3b9896d63aafb35608457
[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" "+1.46.0" "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] 5cd186484d8c259f7897b2bf3dd38a5ad1d8b49f7618e647b182423be0d51a2c
[INFO] running `Command { std: "docker" "start" "-a" "5cd186484d8c259f7897b2bf3dd38a5ad1d8b49f7618e647b182423be0d51a2c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]  Documenting Foprak v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]    --> src/lib.rs:727:23
[INFO] [stdout]     |
[INFO] [stdout] 727 | use std::intrinsics::{breakpoint, ceilf64};
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]    --> src/lib.rs:727:35
[INFO] [stdout]     |
[INFO] [stdout] 727 | use std::intrinsics::{breakpoint, ceilf64};
[INFO] [stdout]     |                                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:907:27
[INFO] [stdout]     |
[INFO] [stdout] 907 |     pub fn get(&mut self, &id:usize) -> Block{
[INFO] [stdout]     |                           ^^^-------
[INFO] [stdout]     |                           |   |
[INFO] [stdout]     |                           |   expected due to this
[INFO] [stdout]     |                           expected `usize`, found reference
[INFO] [stdout]     |                           help: did you mean `id`: `&usize`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected type `usize`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `Foprak`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name Foprak src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-65a0bdc3cc4f471e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-39fef5e24f577909.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5cd186484d8c259f7897b2bf3dd38a5ad1d8b49f7618e647b182423be0d51a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd186484d8c259f7897b2bf3dd38a5ad1d8b49f7618e647b182423be0d51a2c", kill_on_drop: false }`
[INFO] [stdout] 5cd186484d8c259f7897b2bf3dd38a5ad1d8b49f7618e647b182423be0d51a2c