[INFO] fetching crate byte-slice 0.1.12...
[INFO] checking byte-slice-0.1.12 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate byte-slice 0.1.12 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate byte-slice 0.1.12 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate byte-slice 0.1.12
[INFO] finished tweaking crates.io crate byte-slice 0.1.12
[INFO] tweaked toml for crates.io crate byte-slice 0.1.12 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] 975d6e3bce1e952a554ad9e325e70ef1437212f521d55f2d9ef578b5b0c23174
[INFO] running `"docker" "start" "-a" "975d6e3bce1e952a554ad9e325e70ef1437212f521d55f2d9ef578b5b0c23174"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking byte-slice v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `v` is never read
[INFO] [stderr]   --> src/test.rs:83:28
[INFO] [stderr]    |
[INFO] [stderr] 83 |     bs_collect_digits8!(c, v, break,
[INFO] [stderr]    |                            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `v` is never read
[INFO] [stderr]    --> src/test.rs:140:29
[INFO] [stderr]     |
[INFO] [stderr] 140 |     bs_collect_digits16!(c, v, break,
[INFO] [stderr]     |                             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `v` is never read
[INFO] [stderr]    --> src/test.rs:197:29
[INFO] [stderr]     |
[INFO] [stderr] 197 |     bs_collect_digits32!(c, v, break,
[INFO] [stderr]     |                             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `v` is never read
[INFO] [stderr]    --> src/test.rs:254:29
[INFO] [stderr]     |
[INFO] [stderr] 254 |     bs_collect_digits64!(c, v, break,
[INFO] [stderr]     |                             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "975d6e3bce1e952a554ad9e325e70ef1437212f521d55f2d9ef578b5b0c23174"`
[INFO] running `"docker" "rm" "-f" "975d6e3bce1e952a554ad9e325e70ef1437212f521d55f2d9ef578b5b0c23174"`
[INFO] [stdout] 975d6e3bce1e952a554ad9e325e70ef1437212f521d55f2d9ef578b5b0c23174