[INFO] cloning repository https://github.com/GyrosOfWar/rlox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GyrosOfWar/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGyrosOfWar%2Frlox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGyrosOfWar%2Frlox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 56360835dc0e7d13b0d5f03c2ff42b2d9e25e0a5 [INFO] testing GyrosOfWar/rlox against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGyrosOfWar%2Frlox" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/GyrosOfWar/rlox on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/GyrosOfWar/rlox [INFO] finished tweaking git repo https://github.com/GyrosOfWar/rlox [INFO] tweaked toml for git repo https://github.com/GyrosOfWar/rlox written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/GyrosOfWar/rlox already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b52ebf3f7beb5fad811f415f36cb6547dadc91a38bf44cb2ad0ae45b85bfbfa [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9b52ebf3f7beb5fad811f415f36cb6547dadc91a38bf44cb2ad0ae45b85bfbfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b52ebf3f7beb5fad811f415f36cb6547dadc91a38bf44cb2ad0ae45b85bfbfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b52ebf3f7beb5fad811f415f36cb6547dadc91a38bf44cb2ad0ae45b85bfbfa", kill_on_drop: false }` [INFO] [stdout] 9b52ebf3f7beb5fad811f415f36cb6547dadc91a38bf44cb2ad0ae45b85bfbfa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3b26b9cebd8a42a423d9b384af0c21fc70c5ec7127e0a0d59af387ebc1afc5f5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3b26b9cebd8a42a423d9b384af0c21fc70c5ec7127e0a0d59af387ebc1afc5f5", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling eyre v0.6.5 [INFO] [stderr] Compiling indenter v0.3.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling env_logger v0.9.0 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Compiling thiserror v1.0.26 [INFO] [stderr] Compiling rlox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time [INFO] [stdout] --> src/parser.rs:65:15 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Parser<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] ... [INFO] [stdout] 65 | while self.matches_any(&[TokenType::EqualEqual, TokenType::BangEqual]) { [INFO] [stdout] | ^^^^------------------------------------------------------------ [INFO] [stdout] | | [INFO] [stdout] | `*self` was mutably borrowed here in the previous iteration of the loop [INFO] [stdout] | argument requires that `*self` is borrowed for `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable [INFO] [stdout] --> src/parser.rs:66:28 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Parser<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] ... [INFO] [stdout] 65 | while self.matches_any(&[TokenType::EqualEqual, TokenType::BangEqual]) { [INFO] [stdout] | ---------------------------------------------------------------- [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | argument requires that `*self` is borrowed for `'a` [INFO] [stdout] 66 | let operator = self.previous(); [INFO] [stdout] | ^^^^ immutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time [INFO] [stdout] --> src/parser.rs:67:25 [INFO] [stdout] | [INFO] [stdout] 11 | impl<'a> Parser<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] ... [INFO] [stdout] 65 | while self.matches_any(&[TokenType::EqualEqual, TokenType::BangEqual]) { [INFO] [stdout] | ---------------------------------------------------------------- [INFO] [stdout] | | [INFO] [stdout] | first mutable borrow occurs here [INFO] [stdout] | argument requires that `*self` is borrowed for `'a` [INFO] [stdout] 66 | let operator = self.previous(); [INFO] [stdout] 67 | let right = self.comparison(); [INFO] [stdout] | ^^^^ second mutable borrow occurs here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0499, E0502. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0499`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rlox` due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "3b26b9cebd8a42a423d9b384af0c21fc70c5ec7127e0a0d59af387ebc1afc5f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b26b9cebd8a42a423d9b384af0c21fc70c5ec7127e0a0d59af387ebc1afc5f5", kill_on_drop: false }` [INFO] [stdout] 3b26b9cebd8a42a423d9b384af0c21fc70c5ec7127e0a0d59af387ebc1afc5f5