[INFO] cloning repository https://github.com/medfahmy/wzn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/medfahmy/wzn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedfahmy%2Fwzn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedfahmy%2Fwzn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36b316e0e19a34908fe0ba9acc2844982e3954c1
[INFO] testing medfahmy/wzn against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedfahmy%2Fwzn" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/medfahmy/wzn
[INFO] finished tweaking git repo https://github.com/medfahmy/wzn
[INFO] tweaked toml for git repo https://github.com/medfahmy/wzn written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/medfahmy/wzn on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/medfahmy/wzn 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ecdc2e395ee249cc6285a63f698975b7992ebf0015bc953b2147b0eea36254c
[INFO] running `Command { std: "docker" "start" "-a" "6ecdc2e395ee249cc6285a63f698975b7992ebf0015bc953b2147b0eea36254c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ecdc2e395ee249cc6285a63f698975b7992ebf0015bc953b2147b0eea36254c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecdc2e395ee249cc6285a63f698975b7992ebf0015bc953b2147b0eea36254c", kill_on_drop: false }`
[INFO] [stdout] 6ecdc2e395ee249cc6285a63f698975b7992ebf0015bc953b2147b0eea36254c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71b7ba6d0990b9a66f3bd4447d2f7e105bf22550803d64d97b8092e6d7e57ba3
[INFO] running `Command { std: "docker" "start" "-a" "71b7ba6d0990b9a66f3bd4447d2f7e105bf22550803d64d97b8092e6d7e57ba3", kill_on_drop: false }`
[INFO] [stderr]    Compiling morph 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/parser/mod.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |         if let Some(token) = &self.peek {
[INFO] [stdout]     |                              ---------- immutable borrow occurs here
[INFO] [stdout] 129 |             self.bump();
[INFO] [stdout]     |             ^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stdout] 130 |             let literal = self.curr.take().unwrap().literal;
[INFO] [stdout] 131 |             match token.kind {
[INFO] [stdout]     |                   ---------- immutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `morph` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "71b7ba6d0990b9a66f3bd4447d2f7e105bf22550803d64d97b8092e6d7e57ba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b7ba6d0990b9a66f3bd4447d2f7e105bf22550803d64d97b8092e6d7e57ba3", kill_on_drop: false }`
[INFO] [stdout] 71b7ba6d0990b9a66f3bd4447d2f7e105bf22550803d64d97b8092e6d7e57ba3