[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] checking medfahmy/wzn against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmedfahmy%2Fwzn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/medfahmy/wzn on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f4bce9b91e276bed0f16176a503193ba85ce3a73905086ef226f4f57a63ac61
[INFO] running `Command { std: "docker" "start" "-a" "6f4bce9b91e276bed0f16176a503193ba85ce3a73905086ef226f4f57a63ac61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f4bce9b91e276bed0f16176a503193ba85ce3a73905086ef226f4f57a63ac61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4bce9b91e276bed0f16176a503193ba85ce3a73905086ef226f4f57a63ac61", kill_on_drop: false }`
[INFO] [stdout] 6f4bce9b91e276bed0f16176a503193ba85ce3a73905086ef226f4f57a63ac61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f36c768d4e97abde8ce8eb2bd08d3a74fbf15f35d3b9c3b913926cc7634e5f9b
[INFO] running `Command { std: "docker" "start" "-a" "f36c768d4e97abde8ce8eb2bd08d3a74fbf15f35d3b9c3b913926cc7634e5f9b", kill_on_drop: false }`
[INFO] [stderr]     Checking 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 test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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" "f36c768d4e97abde8ce8eb2bd08d3a74fbf15f35d3b9c3b913926cc7634e5f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f36c768d4e97abde8ce8eb2bd08d3a74fbf15f35d3b9c3b913926cc7634e5f9b", kill_on_drop: false }`
[INFO] [stdout] f36c768d4e97abde8ce8eb2bd08d3a74fbf15f35d3b9c3b913926cc7634e5f9b