[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] checking GyrosOfWar/rlox against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGyrosOfWar%2Frlox" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/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-23/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] [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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 8f9fa46da83efc7130d7b0630fefd3cbbc4409c81e0130a4809abaa8b0676c7a
[INFO] running `Command { std: "docker" "start" "-a" "8f9fa46da83efc7130d7b0630fefd3cbbc4409c81e0130a4809abaa8b0676c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f9fa46da83efc7130d7b0630fefd3cbbc4409c81e0130a4809abaa8b0676c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f9fa46da83efc7130d7b0630fefd3cbbc4409c81e0130a4809abaa8b0676c7a", kill_on_drop: false }`
[INFO] [stdout] 8f9fa46da83efc7130d7b0630fefd3cbbc4409c81e0130a4809abaa8b0676c7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41004a37f8fa2486ef8f98fd013905877d784470373ff118485dc0c505269e71
[INFO] running `Command { std: "docker" "start" "-a" "41004a37f8fa2486ef8f98fd013905877d784470373ff118485dc0c505269e71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking 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[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] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "41004a37f8fa2486ef8f98fd013905877d784470373ff118485dc0c505269e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41004a37f8fa2486ef8f98fd013905877d784470373ff118485dc0c505269e71", kill_on_drop: false }`
[INFO] [stdout] 41004a37f8fa2486ef8f98fd013905877d784470373ff118485dc0c505269e71
