[INFO] cloning repository https://github.com/dsocolobsky/vvdc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dsocolobsky/vvdc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsocolobsky%2Fvvdc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsocolobsky%2Fvvdc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c8e6b87eb6121fd60c7792d0aa1f9b26bfbd9f1
[INFO] testing dsocolobsky/vvdc against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsocolobsky%2Fvvdc" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dsocolobsky/vvdc on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dsocolobsky/vvdc
[INFO] finished tweaking git repo https://github.com/dsocolobsky/vvdc
[INFO] tweaked toml for git repo https://github.com/dsocolobsky/vvdc written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate git repo https://github.com/dsocolobsky/vvdc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c82cc4b27451974a229ba720ad921751d5b832390d2b27607bd0935fc7a75511
[INFO] running `Command { std: "docker" "start" "-a" "c82cc4b27451974a229ba720ad921751d5b832390d2b27607bd0935fc7a75511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c82cc4b27451974a229ba720ad921751d5b832390d2b27607bd0935fc7a75511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c82cc4b27451974a229ba720ad921751d5b832390d2b27607bd0935fc7a75511", kill_on_drop: false }`
[INFO] [stdout] c82cc4b27451974a229ba720ad921751d5b832390d2b27607bd0935fc7a75511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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=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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ac8f60fa116eceef2eea8a0d8948851e2723811494186f0fa416d9626412a11
[INFO] running `Command { std: "docker" "start" "-a" "6ac8f60fa116eceef2eea8a0d8948851e2723811494186f0fa416d9626412a11", kill_on_drop: false }`
[INFO] [stderr]    Compiling vvdc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/codegen.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         for expression in &self.expressions {
[INFO] [stdout]    |                           -----------------
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           immutable borrow occurs here
[INFO] [stdout]    |                           immutable borrow later used here
[INFO] [stdout] 19 |             self.emit_code_for_expression(&expression);
[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 `vvdc` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6ac8f60fa116eceef2eea8a0d8948851e2723811494186f0fa416d9626412a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac8f60fa116eceef2eea8a0d8948851e2723811494186f0fa416d9626412a11", kill_on_drop: false }`
[INFO] [stdout] 6ac8f60fa116eceef2eea8a0d8948851e2723811494186f0fa416d9626412a11