[INFO] updating cached repository https://github.com/getreu/stringsext
[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] [stderr] From https://github.com/getreu/stringsext
[INFO] [stderr]    194dd37..587a1d9  master     -> master
[INFO] [stderr]  * [new tag]         v1.7.1     -> v1.7.1
[INFO] [stderr]  * [new tag]         v2.0.0     -> v2.0.0
[INFO] [stderr]  * [new tag]         v2.1.0     -> v2.1.0
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 587a1d947ea0765841729eee75c117c2463d8781
[INFO] checking getreu/stringsext against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgetreu%2Fstringsext" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/getreu/stringsext on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/getreu/stringsext
[INFO] finished tweaking git repo https://github.com/getreu/stringsext
[INFO] tweaked toml for git repo https://github.com/getreu/stringsext written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/getreu/stringsext already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] e1b3d804cc8ad2a03fbeeb6ad2e70d740063d3efc27d829646aded8bc0318268
[INFO] running `"docker" "start" "-a" "e1b3d804cc8ad2a03fbeeb6ad2e70d740063d3efc27d829646aded8bc0318268"`
[INFO] [stderr]     Checking stringsext v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/scanner.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     'input_window_loop: while decoder_input_start < input_buffer.len() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/scanner.rs:267:13
[INFO] [stderr]     |
[INFO] [stderr] 267 |             'chunk_loop: for chunk in SplitStr::new(
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/scanner.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     'input_window_loop: while decoder_input_start < input_buffer.len() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/scanner.rs:267:13
[INFO] [stderr]     |
[INFO] [stderr] 267 |             'chunk_loop: for chunk in SplitStr::new(
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.44s
[INFO] running `"docker" "inspect" "e1b3d804cc8ad2a03fbeeb6ad2e70d740063d3efc27d829646aded8bc0318268"`
[INFO] running `"docker" "rm" "-f" "e1b3d804cc8ad2a03fbeeb6ad2e70d740063d3efc27d829646aded8bc0318268"`
[INFO] [stdout] e1b3d804cc8ad2a03fbeeb6ad2e70d740063d3efc27d829646aded8bc0318268