[INFO] updating cached repository https://github.com/IgorBoyarshin/vffm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5cce9d0f95cf60e2098d546e5520692630eae7d8
[INFO] checking IgorBoyarshin/vffm against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIgorBoyarshin%2Fvffm" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IgorBoyarshin/vffm on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/IgorBoyarshin/vffm
[INFO] finished tweaking git repo https://github.com/IgorBoyarshin/vffm
[INFO] tweaked toml for git repo https://github.com/IgorBoyarshin/vffm written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/IgorBoyarshin/vffm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] b9d7ef66508b8550554b650fa45eaf9e543a89f9059ea7aa8b5d83e10f7ac943
[INFO] running `"docker" "start" "-a" "b9d7ef66508b8550554b650fa45eaf9e543a89f9059ea7aa8b5d83e10f7ac943"`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling ncurses v5.98.0
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking vffm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/filesystem.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     (!meta.is_file() && !meta.is_dir())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/filesystem.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     (!meta.is_file() && !meta.is_dir())
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `self.selected` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/system.rs:854:17
[INFO] [stderr]     |
[INFO] [stderr] 846 |         if let Some(path) = self.context_ref().current_path.as_ref() {
[INFO] [stderr]     |                             ---- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 854 |                 self.selected.push(path.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^      ---- immutable borrow later used here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_str_len`
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_str_len)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `self.selected` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/system.rs:854:17
[INFO] [stderr]     |
[INFO] [stderr] 846 |         if let Some(path) = self.context_ref().current_path.as_ref() {
[INFO] [stderr]     |                             ---- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 854 |                 self.selected.push(path.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^^^      ---- immutable borrow later used here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `vffm`.
[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[E0635]: unknown feature `const_str_len`
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_str_len)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `vffm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b9d7ef66508b8550554b650fa45eaf9e543a89f9059ea7aa8b5d83e10f7ac943"`
[INFO] running `"docker" "rm" "-f" "b9d7ef66508b8550554b650fa45eaf9e543a89f9059ea7aa8b5d83e10f7ac943"`
[INFO] [stdout] b9d7ef66508b8550554b650fa45eaf9e543a89f9059ea7aa8b5d83e10f7ac943
