[INFO] crate byte-slice 0.1.12 is already in cache
[INFO] checking byte-slice-0.1.12 against try#b2a885c600d942fb829a214e798f7ae205a0594e for pr-71796
[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 b2a885c600d942fb829a214e798f7ae205a0594e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b2a885c600d942fb829a214e798f7ae205a0594e" "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" "+b2a885c600d942fb829a214e798f7ae205a0594e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b2a885c600d942fb829a214e798f7ae205a0594e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+b2a885c600d942fb829a214e798f7ae205a0594e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] db3cc818233c01133d8340c449147e2caa1e8f2bcd3f31c82466a5223839d4d4
[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" "db3cc818233c01133d8340c449147e2caa1e8f2bcd3f31c82466a5223839d4d4"`
[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 0.78s
[INFO] running `"docker" "inspect" "db3cc818233c01133d8340c449147e2caa1e8f2bcd3f31c82466a5223839d4d4"`
[INFO] running `"docker" "rm" "-f" "db3cc818233c01133d8340c449147e2caa1e8f2bcd3f31c82466a5223839d4d4"`
[INFO] [stdout] db3cc818233c01133d8340c449147e2caa1e8f2bcd3f31c82466a5223839d4d4