[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]    9368da7..78cedf5  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78cedf5f5e8a5b1271ce3b3f5375cdd6ad345f11
[INFO] checking andysalerno/toygrep against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[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 bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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] 6d98a578d31e4a17b9c320f7672b1539e131acc870f24d2dbf0d36e08357be52
[INFO] running `"docker" "start" "-a" "6d98a578d31e4a17b9c320f7672b1539e131acc870f24d2dbf0d36e08357be52"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking scoped-tls-hkt v0.1.2
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking kv-log-macro v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.14
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking pin-project v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking piper v0.1.1
[INFO] [stderr]     Checking smol v0.1.4
[INFO] [stderr]     Checking async-std v1.6.0-beta.1 (https://github.com/async-rs/async-std?rev=e20b0f0d75d5#e20b0f0d)
[INFO] [stderr]     Checking toygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `with_line_break_byte`
[INFO] [stderr]   --> src/buffer/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: associated function is never used: `with_start_size_bytes`
[INFO] [stderr]   --> src/buffer/async_line_buffer.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub(crate) fn with_start_size_bytes(mut self, start_size_bytes: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Display`
[INFO] [stderr]   --> src/print.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     Display(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function 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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `with_line_break_byte`
[INFO] [stderr]   --> src/buffer/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/print.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     Display(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function 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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `"docker" "inspect" "6d98a578d31e4a17b9c320f7672b1539e131acc870f24d2dbf0d36e08357be52"`
[INFO] running `"docker" "rm" "-f" "6d98a578d31e4a17b9c320f7672b1539e131acc870f24d2dbf0d36e08357be52"`
[INFO] [stdout] 6d98a578d31e4a17b9c320f7672b1539e131acc870f24d2dbf0d36e08357be52