[INFO] updating cached repository https://github.com/andysalerno/toygrep
[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/andysalerno/toygrep
[INFO] [stderr]    3752e73..eaafef1  master           -> master
[INFO] [stderr]  * [new branch]      try_consume_line -> try_consume_line
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eaafef120901172a91bce4b7034ced4e0502a109
[INFO] checking andysalerno/toygrep against try#a243773eaf3fedcd203f10ae4579e4f106bf7ccd for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandysalerno%2Ftoygrep" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andysalerno/toygrep on toolchain a243773eaf3fedcd203f10ae4579e4f106bf7ccd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/andysalerno/toygrep
[INFO] finished tweaking git repo https://github.com/andysalerno/toygrep
[INFO] tweaked toml for git repo https://github.com/andysalerno/toygrep written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/andysalerno/toygrep already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a243773eaf3fedcd203f10ae4579e4f106bf7ccd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 403df573a6ab8467e1e85ac85d26d59e070280b1cd4c4f533c2cb4f2f8e3796b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "403df573a6ab8467e1e85ac85d26d59e070280b1cd4c4f533c2cb4f2f8e3796b"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking async-task v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking mio v0.6.20
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking async-std v1.4.0
[INFO] [stderr]     Checking toygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `with_line_break_byte`
[INFO] [stderr]   --> src/async_line_buffer.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub(crate) fn with_line_break_byte(mut self, line_break_byte: u8) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Display`
[INFO] [stderr]   --> src/printer.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     Display(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_stdin`
[INFO] [stderr]   --> src/target.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub(crate) fn is_stdin(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `log_print_duration`
[INFO] [stderr]   --> src/time_log.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub(crate) fn log_print_duration(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `log_printer_spawn_to_print`
[INFO] [stderr]   --> src/time_log.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub(crate) fn log_printer_spawn_to_print(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_line_break_byte`
[INFO] [stderr]   --> src/async_line_buffer.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub(crate) fn with_line_break_byte(mut self, line_break_byte: u8) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Display`
[INFO] [stderr]   --> src/printer.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     Display(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_stdin`
[INFO] [stderr]   --> src/target.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub(crate) fn is_stdin(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `log_print_duration`
[INFO] [stderr]   --> src/time_log.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub(crate) fn log_print_duration(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `log_printer_spawn_to_print`
[INFO] [stderr]   --> src/time_log.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub(crate) fn log_printer_spawn_to_print(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.91s
[INFO] running `"docker" "inspect" "403df573a6ab8467e1e85ac85d26d59e070280b1cd4c4f533c2cb4f2f8e3796b"`
[INFO] running `"docker" "rm" "-f" "403df573a6ab8467e1e85ac85d26d59e070280b1cd4c4f533c2cb4f2f8e3796b"`
[INFO] [stdout] 403df573a6ab8467e1e85ac85d26d59e070280b1cd4c4f533c2cb4f2f8e3796b