[INFO] fetching crate testbench 0.7.0...
[INFO] checking testbench-0.7.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate testbench 0.7.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate testbench 0.7.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate testbench 0.7.0
[INFO] finished tweaking crates.io crate testbench 0.7.0
[INFO] tweaked toml for crates.io crate testbench 0.7.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] b61423ca619aab232e5b939f75bcf1f4c65ac1a9cac592ff5d10dbd8297fa1d4
[INFO] running `"docker" "start" "-a" "b61423ca619aab232e5b939f75bcf1f4c65ac1a9cac592ff5d10dbd8297fa1d4"`
[INFO] [stderr]     Checking testbench v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/race_cell.rs:205:1
[INFO] [stderr]     |
[INFO] [stderr] 205 |   ///
[INFO] [stderr]     |   ^^^
[INFO] [stderr] 206 | / impl_atomic_data! {
[INFO] [stderr] 207 | |     bool  => AtomicBool,
[INFO] [stderr] 208 | |     i8    => AtomicI8,
[INFO] [stderr] 209 | |     i16   => AtomicI16,
[INFO] [stderr] ...   |
[INFO] [stderr] 217 | |     usize => AtomicUsize
[INFO] [stderr] 218 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/race_cell.rs:205:1
[INFO] [stderr]     |
[INFO] [stderr] 205 |   ///
[INFO] [stderr]     |   ^^^
[INFO] [stderr] 206 | / impl_atomic_data! {
[INFO] [stderr] 207 | |     bool  => AtomicBool,
[INFO] [stderr] 208 | |     i8    => AtomicI8,
[INFO] [stderr] 209 | |     i16   => AtomicI16,
[INFO] [stderr] ...   |
[INFO] [stderr] 217 | |     usize => AtomicUsize
[INFO] [stderr] 218 | | }
[INFO] [stderr]     | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "b61423ca619aab232e5b939f75bcf1f4c65ac1a9cac592ff5d10dbd8297fa1d4"`
[INFO] running `"docker" "rm" "-f" "b61423ca619aab232e5b939f75bcf1f4c65ac1a9cac592ff5d10dbd8297fa1d4"`
[INFO] [stdout] b61423ca619aab232e5b939f75bcf1f4c65ac1a9cac592ff5d10dbd8297fa1d4