[INFO] fetching crate rmcmc 0.1.0...
[INFO] documenting rmcmc-0.1.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate rmcmc 0.1.0 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate rmcmc 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmcmc 0.1.0
[INFO] finished tweaking crates.io crate rmcmc 0.1.0
[INFO] tweaked toml for crates.io crate rmcmc 0.1.0 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded assert v0.7.4
[INFO] [stderr]   Downloaded special v0.7.8
[INFO] [stderr]   Downloaded rv v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e16999630cc629e8d3abadb6f28572fe0a105c47b0d0aa78fd95fd64fdeed85
[INFO] running `Command { std: "docker" "start" "-a" "2e16999630cc629e8d3abadb6f28572fe0a105c47b0d0aa78fd95fd64fdeed85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e16999630cc629e8d3abadb6f28572fe0a105c47b0d0aa78fd95fd64fdeed85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e16999630cc629e8d3abadb6f28572fe0a105c47b0d0aa78fd95fd64fdeed85", kill_on_drop: false }`
[INFO] [stdout] 2e16999630cc629e8d3abadb6f28572fe0a105c47b0d0aa78fd95fd64fdeed85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f0416ac2961912b45cc8f04c8683a22aad2c8fccfab2d7fcf5880fe7baeb1fa
[INFO] running `Command { std: "docker" "start" "-a" "3f0416ac2961912b45cc8f04c8683a22aad2c8fccfab2d7fcf5880fe7baeb1fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking special v0.7.8
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking generic-array v0.11.2
[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking rv v0.4.1
[INFO] [stdout] error[E0502]: cannot borrow `summed` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rv-0.4.1/src/misc/func.rs:55:22
[INFO] [stdout]    |
[INFO] [stdout] 55 |         summed[i] += summed[i - 1].clone();
[INFO] [stdout]    |         -------------^^^^^^---------------
[INFO] [stdout]    |         |            |
[INFO] [stdout]    |         |            immutable borrow occurs here
[INFO] [stdout]    |         mutable borrow occurs here
[INFO] [stdout]    |         mutable 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 E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rv` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3f0416ac2961912b45cc8f04c8683a22aad2c8fccfab2d7fcf5880fe7baeb1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0416ac2961912b45cc8f04c8683a22aad2c8fccfab2d7fcf5880fe7baeb1fa", kill_on_drop: false }`
[INFO] [stdout] 3f0416ac2961912b45cc8f04c8683a22aad2c8fccfab2d7fcf5880fe7baeb1fa
