[INFO] fetching crate sgf-render 2.4.1...
[INFO] checking sgf-render-2.4.1 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate sgf-render 2.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate sgf-render 2.4.1 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sgf-render 2.4.1
[INFO] finished tweaking crates.io crate sgf-render 2.4.1
[INFO] tweaked toml for crates.io crate sgf-render 2.4.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate sgf-render 2.4.1 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63a5196f3431f766cfc1e3835ff5145125238cf6c8e062a492a068118755391d
[INFO] running `Command { std: "docker" "start" "-a" "63a5196f3431f766cfc1e3835ff5145125238cf6c8e062a492a068118755391d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63a5196f3431f766cfc1e3835ff5145125238cf6c8e062a492a068118755391d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a5196f3431f766cfc1e3835ff5145125238cf6c8e062a492a068118755391d", kill_on_drop: false }`
[INFO] [stdout] 63a5196f3431f766cfc1e3835ff5145125238cf6c8e062a492a068118755391d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfad586290581b25d2341a3483659b453a06fe3ae868f77fb7819768fca8ae46
[INFO] running `Command { std: "docker" "start" "-a" "dfad586290581b25d2341a3483659b453a06fe3ae868f77fb7819768fca8ae46", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-general-category v0.2.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]     Checking ttf-parser v0.9.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking unicode-script v0.5.3
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]     Checking ttf-parser v0.12.3
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking flate2 v1.0.21
[INFO] [stderr]     Checking svgtypes v0.5.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking kurbo v0.8.1
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking rustybuzz v0.3.0
[INFO] [stderr]     Checking pico-args v0.4.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking rctree v0.3.3
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking tiny-skia v0.5.1
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking svgfilters v0.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking fontdb v0.5.4
[INFO] [stderr]    Compiling sgf-render v2.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking minidom v0.13.0
[INFO] [stderr]     Checking sgf-parse v4.0.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking usvg v0.14.1
[INFO] [stderr]     Checking resvg v0.14.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib/goban.rs:287:21
[INFO] [stdout]     |
[INFO] [stdout] 284 |         for neighbor in self.neighbors(key) {
[INFO] [stdout]     |                         -------------------
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         immutable borrow occurs here
[INFO] [stdout]     |                         immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 287 |                     self.process_captures(neighbor);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib/goban.rs:287:21
[INFO] [stdout]     |
[INFO] [stdout] 284 |         for neighbor in self.neighbors(key) {
[INFO] [stdout]     |                         -------------------
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         immutable borrow occurs here
[INFO] [stdout]     |                         immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 287 |                     self.process_captures(neighbor);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs 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 `sgf-render` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `sgf-render` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dfad586290581b25d2341a3483659b453a06fe3ae868f77fb7819768fca8ae46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfad586290581b25d2341a3483659b453a06fe3ae868f77fb7819768fca8ae46", kill_on_drop: false }`
[INFO] [stdout] dfad586290581b25d2341a3483659b453a06fe3ae868f77fb7819768fca8ae46