[INFO] crate testbench 0.7.0 is already in cache
[INFO] extracting crate testbench 0.7.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/testbench/0.7.0
[INFO] extracting crate testbench 0.7.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/testbench/0.7.0
[INFO] validating manifest of testbench-0.7.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of testbench-0.7.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing testbench-0.7.0
[INFO] finished frobbing testbench-0.7.0
[INFO] frobbed toml for testbench-0.7.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/testbench/0.7.0/Cargo.toml
[INFO] started frobbing testbench-0.7.0
[INFO] finished frobbing testbench-0.7.0
[INFO] frobbed toml for testbench-0.7.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/testbench/0.7.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing testbench-0.7.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/testbench/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2defcdb1466bf3a97e0f4852d9e04865cc5223d94395472dce5f56d371a318fe
[INFO] running `"docker" "start" "-a" "2defcdb1466bf3a97e0f4852d9e04865cc5223d94395472dce5f56d371a318fe"`
[INFO] [stderr]    Compiling testbench v0.7.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "2defcdb1466bf3a97e0f4852d9e04865cc5223d94395472dce5f56d371a318fe"`
[INFO] running `"docker" "rm" "-f" "2defcdb1466bf3a97e0f4852d9e04865cc5223d94395472dce5f56d371a318fe"`
[INFO] [stdout] 2defcdb1466bf3a97e0f4852d9e04865cc5223d94395472dce5f56d371a318fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/testbench/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 29881ac387342aeb818bb8f68f0f62f1ad8005e2b22fb1de28c33e61371049fd
[INFO] running `"docker" "start" "-a" "29881ac387342aeb818bb8f68f0f62f1ad8005e2b22fb1de28c33e61371049fd"`
[INFO] [stderr]    Compiling testbench v0.7.0 (/opt/crater/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]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `"docker" "inspect" "29881ac387342aeb818bb8f68f0f62f1ad8005e2b22fb1de28c33e61371049fd"`
[INFO] running `"docker" "rm" "-f" "29881ac387342aeb818bb8f68f0f62f1ad8005e2b22fb1de28c33e61371049fd"`
[INFO] [stdout] 29881ac387342aeb818bb8f68f0f62f1ad8005e2b22fb1de28c33e61371049fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/testbench/0.7.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 2144fde57627bfab7711ff8ca4276d81d9a682938be5abd592c981630f510981
[INFO] running `"docker" "start" "-a" "2144fde57627bfab7711ff8ca4276d81d9a682938be5abd592c981630f510981"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/testbench-76f3513fa6232092
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test benchs::bench_relaxed ... ignored
[INFO] [stdout] test benchs::bench_seqcst ... ignored
[INFO] [stdout] test race_cell::tests::protected_transaction ... ignored
[INFO] [stdout] test race_cell::tests::unprotected_race ... ignored
[INFO] [stdout] test race_cell::tests::initial_state ... ok
[INFO] [stdout] test race_cell::tests::inconsistent_read ... ok
[INFO] [stdout] test race_cell::tests::clone ... ok
[INFO] [stdout] test race_cell::tests::consistent_read ... ok
[INFO] [stdout] test tests::fetch_and_or_xor ... ok
[INFO] [stdout] test tests::swap_and_fetch_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests testbench
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2144fde57627bfab7711ff8ca4276d81d9a682938be5abd592c981630f510981"`
[INFO] running `"docker" "rm" "-f" "2144fde57627bfab7711ff8ca4276d81d9a682938be5abd592c981630f510981"`
[INFO] [stdout] 2144fde57627bfab7711ff8ca4276d81d9a682938be5abd592c981630f510981