[INFO] crate rb 0.3.2 is already in cache
[INFO] testing rb-0.3.2 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate rb 0.3.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rb 0.3.2 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rb 0.3.2
[INFO] finished tweaking crates.io crate rb 0.3.2
[INFO] tweaked toml for crates.io crate rb 0.3.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dfd1b12476013c9ac473b84eb86e0b432020d4418d0cd3f56eca055644a42d5c
[INFO] running `"docker" "start" "-a" "dfd1b12476013c9ac473b84eb86e0b432020d4418d0cd3f56eca055644a42d5c"`
[INFO] [stderr]    Compiling rb v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "dfd1b12476013c9ac473b84eb86e0b432020d4418d0cd3f56eca055644a42d5c"`
[INFO] running `"docker" "rm" "-f" "dfd1b12476013c9ac473b84eb86e0b432020d4418d0cd3f56eca055644a42d5c"`
[INFO] [stdout] dfd1b12476013c9ac473b84eb86e0b432020d4418d0cd3f56eca055644a42d5c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 68fadd2bd9c874306308c374d02e92d072d8744bb8d9c77dab55cb33b7bf2970
[INFO] running `"docker" "start" "-a" "68fadd2bd9c874306308c374d02e92d072d8744bb8d9c77dab55cb33b7bf2970"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rb v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.18s
[INFO] running `"docker" "inspect" "68fadd2bd9c874306308c374d02e92d072d8744bb8d9c77dab55cb33b7bf2970"`
[INFO] running `"docker" "rm" "-f" "68fadd2bd9c874306308c374d02e92d072d8744bb8d9c77dab55cb33b7bf2970"`
[INFO] [stdout] 68fadd2bd9c874306308c374d02e92d072d8744bb8d9c77dab55cb33b7bf2970
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb221f4d2144159e29badd1512abc3ed61c701fe7fb573c591a98084bce4ce34
[INFO] running `"docker" "start" "-a" "bb221f4d2144159e29badd1512abc3ed61c701fe7fb573c591a98084bce4ce34"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rb-8283d241d171600c
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::get_with_wrapping ... ok
[INFO] [stdout] test tests::get_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::get_with_wrapping_2 ... ok
[INFO] [stdout] test tests::get_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::read_blocking_to_empty_buffer_returns_none ... ok
[INFO] [stdout] test tests::read_to_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_blocking_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::read_from_empty_buffer_returns_error ... ok
[INFO] [stdout] test tests::write_empty_buffer_returns_zero ... ok
[INFO] [stdout] test tests::write_to_full_queue_returns_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-c65fb23f1135fa65
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_write ... ok
[INFO] [stdout] test test_read_write_wrap ... ok
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_read ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_read_write_wrap_blocking ... ok
[INFO] [stdout] test test_wrap_around ... ok
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/threads-6e2809610f0427d5
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_threads_blocking ... ok
[INFO] [stdout] test test_threads ... ok
[INFO] [stdout] test test_threads_count_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - SpscRb (line 132) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bb221f4d2144159e29badd1512abc3ed61c701fe7fb573c591a98084bce4ce34"`
[INFO] running `"docker" "rm" "-f" "bb221f4d2144159e29badd1512abc3ed61c701fe7fb573c591a98084bce4ce34"`
[INFO] [stdout] bb221f4d2144159e29badd1512abc3ed61c701fe7fb573c591a98084bce4ce34