[INFO] cloning repository https://github.com/alexzlov/testbench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexzlov/testbench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexzlov%2Ftestbench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexzlov%2Ftestbench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77734fbab22f27a455bbbf9c3cde2375a634f30c
[INFO] documenting alexzlov/testbench against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexzlov%2Ftestbench" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexzlov/testbench on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexzlov/testbench
[INFO] finished tweaking git repo https://github.com/alexzlov/testbench
[INFO] tweaked toml for git repo https://github.com/alexzlov/testbench written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alexzlov/testbench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eaea51dd0e08a0053d6b5a50955ec2645c942d518cc33b4ff9e4c3c769ce6d8
[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" "7eaea51dd0e08a0053d6b5a50955ec2645c942d518cc33b4ff9e4c3c769ce6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eaea51dd0e08a0053d6b5a50955ec2645c942d518cc33b4ff9e4c3c769ce6d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eaea51dd0e08a0053d6b5a50955ec2645c942d518cc33b4ff9e4c3c769ce6d8", kill_on_drop: false }`
[INFO] [stdout] 7eaea51dd0e08a0053d6b5a50955ec2645c942d518cc33b4ff9e4c3c769ce6d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad05492ba47dcc949f32c6f2643d9d00626336ac38f18fa305506740bd6aef2
[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" "6ad05492ba47dcc949f32c6f2643d9d00626336ac38f18fa305506740bd6aef2", 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]    Compiling libc v0.2.36
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking simd v0.2.1
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling minifb v0.10.4
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(cfg_target_feature, repr_simd, platform_intrinsics, const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:185:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 185 |     fn simd_eq<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:186:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 186 |     fn simd_ne<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn simd_lt<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:188:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn simd_le<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:189:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 189 |     fn simd_gt<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `U: Simd` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/simd-0.2.1/src/lib.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 58  | pub unsafe trait Simd {
[INFO] [stdout]     |                  ---- required by a bound in this
[INFO] [stdout] 59  |     /// The corresponding boolean vector type.
[INFO] [stdout] 60  |     type Bool: Simd;
[INFO] [stdout]     |                ---- required by this bound in `Simd`
[INFO] [stdout] ...
[INFO] [stdout] 190 |     fn simd_ge<T: Simd<Bool = U>, U>(x: T, y: T) -> U;
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ the trait `Simd` is not implemented for `U`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `simd`.
[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" "6ad05492ba47dcc949f32c6f2643d9d00626336ac38f18fa305506740bd6aef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad05492ba47dcc949f32c6f2643d9d00626336ac38f18fa305506740bd6aef2", kill_on_drop: false }`
[INFO] [stdout] 6ad05492ba47dcc949f32c6f2643d9d00626336ac38f18fa305506740bd6aef2
