[INFO] cloning repository https://github.com/jeyabbalas/rustic-mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeyabbalas/rustic-mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeyabbalas%2Frustic-mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeyabbalas%2Frustic-mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15750b0f7455d8d36f4695cb827a1d5bcd34bae7
[INFO] documenting jeyabbalas/rustic-mandelbrot against 1.99.0-beta.1 for beta-rustdoc-1.99-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeyabbalas%2Frustic-mandelbrot" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jeyabbalas/rustic-mandelbrot
[INFO] finished tweaking git repo https://github.com/jeyabbalas/rustic-mandelbrot
[INFO] tweaked toml for git repo https://github.com/jeyabbalas/rustic-mandelbrot written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jeyabbalas/rustic-mandelbrot on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jeyabbalas/rustic-mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "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 weezl v0.1.4
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.2
[INFO] [stderr]   Downloaded loom v0.4.0
[INFO] [stderr]   Downloaded memoffset v0.6.1
[INFO] [stderr]   Downloaded colorgrad v0.3.0
[INFO] [stderr]   Downloaded generator v0.6.24
[INFO] [stderr]   Downloaded gif v0.11.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.2
[INFO] [stderr]   Downloaded csscolorparser v0.4.0
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded image v0.23.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302
[INFO] running `Command { std: "docker" "start" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.2
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.1/src/biguint.rs:208:19
[INFO] [stdout]     |
[INFO] [stdout] 208 |         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout]     |          -------- ^^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found `&_`
[INFO] [stdout]     |          |
[INFO] [stdout]     |          arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected type `u64`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/uint_macros.rs:3787:21
[INFO] [stdout]    --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1322:4
[INFO] [stdout]    ::: /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1346:5
[INFO] [stdout]     |
[INFO] [stdout]     = note: in this macro invocation
[INFO] [stdout]     = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 208 -         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout] 208 +         .div_ceil(big_digit::BITS.into())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.1/src/biguint.rs:1712:54
[INFO] [stdout]      |
[INFO] [stdout] 1712 |                 let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout]      |                                             -------- ^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |                                             |
[INFO] [stdout]      |                                             arguments to this method are incorrect
[INFO] [stdout]      |
[INFO] [stdout] note: method defined here
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/uint_macros.rs:3787:21
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1322:4
[INFO] [stdout]     ::: /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1346:5
[INFO] [stdout]      |
[INFO] [stdout]      = note: in this macro invocation
[INFO] [stdout]      = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 1712 -                 let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout] 1712 +                 let root_scale = extra_bits.div_ceil(n64);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.1/src/biguint.rs:2128:19
[INFO] [stdout]      |
[INFO] [stdout] 2128 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |          -------- ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |          |
[INFO] [stdout]      |          arguments to this method are incorrect
[INFO] [stdout]      |
[INFO] [stdout] note: method defined here
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/uint_macros.rs:3787:21
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1322:4
[INFO] [stdout]     ::: /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1346:5
[INFO] [stdout]      |
[INFO] [stdout]      = note: in this macro invocation
[INFO] [stdout]      = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 2128 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 2128 +         .div_ceil(u64::from(bits))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.1/src/biguint.rs:2156:19
[INFO] [stdout]      |
[INFO] [stdout] 2156 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |          -------- ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |          |
[INFO] [stdout]      |          arguments to this method are incorrect
[INFO] [stdout]      |
[INFO] [stdout] note: method defined here
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/uint_macros.rs:3787:21
[INFO] [stdout]     --> /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1322:4
[INFO] [stdout]     ::: /rustc/f47d5bb13648d5c859f5b438eb7dc834b9729961/library/core/src/num/mod.rs:1346:5
[INFO] [stdout]      |
[INFO] [stdout]      = note: in this macro invocation
[INFO] [stdout]      = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 2156 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 2156 +         .div_ceil(u64::from(bits))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-bigint` (lib) due to 4 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302", kill_on_drop: false }`
[INFO] [stdout] 3ec6f18bf4c054fae0c41092c7f05ccf07ebd411a801a53b74722986fedf3302
