[INFO] cloning repository https://github.com/wglane/rust-graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wglane/rust-graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2Frust-graph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2Frust-graph'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/wglane/rust-graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wglane/rust-graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2Frust-graph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2Frust-graph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6937ce6f7205282251d82474664525d9c2b6a739
[INFO] checking wglane/rust-graph against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwglane%2Frust-graph" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wglane/rust-graph
[INFO] finished tweaking git repo https://github.com/wglane/rust-graph
[INFO] tweaked toml for git repo https://github.com/wglane/rust-graph written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wglane/rust-graph on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wglane/rust-graph 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b234814d0a6f18527a91db4ee49045a63fab6e55dbf05d419ce6e079d9bf228
[INFO] running `Command { std: "docker" "start" "-a" "9b234814d0a6f18527a91db4ee49045a63fab6e55dbf05d419ce6e079d9bf228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b234814d0a6f18527a91db4ee49045a63fab6e55dbf05d419ce6e079d9bf228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b234814d0a6f18527a91db4ee49045a63fab6e55dbf05d419ce6e079d9bf228", kill_on_drop: false }`
[INFO] [stdout] 9b234814d0a6f18527a91db4ee49045a63fab6e55dbf05d419ce6e079d9bf228
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab985411f8fb50d64158dab5efeec69547ae8c0910d133bda0c46d4f6bc4643
[INFO] running `Command { std: "docker" "start" "-a" "4ab985411f8fb50d64158dab5efeec69547ae8c0910d133bda0c46d4f6bc4643", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> src/lib.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let from_node = self.get_node_from_index_mut(from);
[INFO] [stdout]     |                         ---- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 201 |         let to_node = self.get_node_from_index_mut(into);
[INFO] [stdout]     |                       ^^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 208 |         let mut to_append = from_node.edges.clone();
[INFO] [stdout]     |                             --------------- first borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-graph` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> src/lib.rs:201:23
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let from_node = self.get_node_from_index_mut(from);
[INFO] [stdout]     |                         ---- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 201 |         let to_node = self.get_node_from_index_mut(into);
[INFO] [stdout]     |                       ^^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 208 |         let mut to_append = from_node.edges.clone();
[INFO] [stdout]     |                             --------------- first borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-graph` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4ab985411f8fb50d64158dab5efeec69547ae8c0910d133bda0c46d4f6bc4643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab985411f8fb50d64158dab5efeec69547ae8c0910d133bda0c46d4f6bc4643", kill_on_drop: false }`
[INFO] [stdout] 4ab985411f8fb50d64158dab5efeec69547ae8c0910d133bda0c46d4f6bc4643