[INFO] fetching crate verco 4.0.0...
[INFO] checking verco-4.0.0 against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] extracting crate verco 4.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate verco 4.0.0 on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate verco 4.0.0
[INFO] finished tweaking crates.io crate verco 4.0.0
[INFO] tweaked toml for crates.io crate verco 4.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate verco 4.0.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c86a5cc3e01dc81647702b2f13f5bba6086e848993c5cf9197b74ef990d8b70f
[INFO] running `"docker" "start" "-a" "c86a5cc3e01dc81647702b2f13f5bba6086e848993c5cf9197b74ef990d8b70f"`
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking crossterm v0.16.0
[INFO] [stderr]     Checking verco v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stderr]    --> src/tui.rs:495:17
[INFO] [stderr]     |
[INFO] [stderr] 492 | /         queue!(
[INFO] [stderr] 493 | |             self.write,
[INFO] [stderr]     | |             ---------- first mutable borrow occurs here
[INFO] [stderr] 494 | |             Print(
[INFO] [stderr] 495 | |                 self.current_version_control_mut()
[INFO] [stderr]     | |                 ^^^^ second mutable borrow occurs here
[INFO] [stderr] ...   |
[INFO] [stderr] 500 | |             Print("\n\n")
[INFO] [stderr] 501 | |         )?;
[INFO] [stderr]     | |_________- first borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0499`.
[INFO] [stderr] error: could not compile `verco`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stderr]    --> src/tui.rs:495:17
[INFO] [stderr]     |
[INFO] [stderr] 492 | /         queue!(
[INFO] [stderr] 493 | |             self.write,
[INFO] [stderr]     | |             ---------- first mutable borrow occurs here
[INFO] [stderr] 494 | |             Print(
[INFO] [stderr] 495 | |                 self.current_version_control_mut()
[INFO] [stderr]     | |                 ^^^^ second mutable borrow occurs here
[INFO] [stderr] ...   |
[INFO] [stderr] 500 | |             Print("\n\n")
[INFO] [stderr] 501 | |         )?;
[INFO] [stderr]     | |_________- first borrow later used by call
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0499`.
[INFO] [stderr] error: could not compile `verco`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c86a5cc3e01dc81647702b2f13f5bba6086e848993c5cf9197b74ef990d8b70f"`
[INFO] running `"docker" "rm" "-f" "c86a5cc3e01dc81647702b2f13f5bba6086e848993c5cf9197b74ef990d8b70f"`
[INFO] [stdout] c86a5cc3e01dc81647702b2f13f5bba6086e848993c5cf9197b74ef990d8b70f