[INFO] crate async_buf_reader_utils 0.1.0 is already in cache
[INFO] checking async_buf_reader_utils-0.1.0 against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] extracting crate async_buf_reader_utils 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async_buf_reader_utils 0.1.0 on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate async_buf_reader_utils 0.1.0
[INFO] finished tweaking crates.io crate async_buf_reader_utils 0.1.0
[INFO] tweaked toml for crates.io crate async_buf_reader_utils 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] b3525220c670072be9d28e43210e2f1176be640a2f93e383716a0cd6317b0e07
[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" "b3525220c670072be9d28e43210e2f1176be640a2f93e383716a0cd6317b0e07"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking kv-log-macro v1.0.5
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.14
[INFO] [stderr]    Compiling futures-macro v0.3.5
[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 async_buf_reader_utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `fs::File`, `task`
[INFO] [stderr]   --> src/read_until_index_found/mod.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | use async_std::{fs::File, task};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.55s
[INFO] running `"docker" "inspect" "b3525220c670072be9d28e43210e2f1176be640a2f93e383716a0cd6317b0e07"`
[INFO] running `"docker" "rm" "-f" "b3525220c670072be9d28e43210e2f1176be640a2f93e383716a0cd6317b0e07"`
[INFO] [stdout] b3525220c670072be9d28e43210e2f1176be640a2f93e383716a0cd6317b0e07