[INFO] fetching crate st_ring_buffer 1.0.0...
[INFO] testing st_ring_buffer-1.0.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate st_ring_buffer 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate st_ring_buffer 1.0.0
[INFO] finished tweaking crates.io crate st_ring_buffer 1.0.0
[INFO] tweaked toml for crates.io crate st_ring_buffer 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate st_ring_buffer 1.0.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding test-case v2.2.2 (available: v3.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 065537f9b11b3458021d3aa13e9a2a21ec5df336c83189ad6c71fdd839c082ce
[INFO] running `Command { std: "docker" "start" "-a" "065537f9b11b3458021d3aa13e9a2a21ec5df336c83189ad6c71fdd839c082ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "065537f9b11b3458021d3aa13e9a2a21ec5df336c83189ad6c71fdd839c082ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065537f9b11b3458021d3aa13e9a2a21ec5df336c83189ad6c71fdd839c082ce", kill_on_drop: false }`
[INFO] [stdout] 065537f9b11b3458021d3aa13e9a2a21ec5df336c83189ad6c71fdd839c082ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2844439aba678867c4a3932e624a7e17de764c60577bf2b7782fafd85acae974
[INFO] running `Command { std: "docker" "start" "-a" "2844439aba678867c4a3932e624a7e17de764c60577bf2b7782fafd85acae974", kill_on_drop: false }`
[INFO] [stderr]    Compiling st_ring_buffer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "2844439aba678867c4a3932e624a7e17de764c60577bf2b7782fafd85acae974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2844439aba678867c4a3932e624a7e17de764c60577bf2b7782fafd85acae974", kill_on_drop: false }`
[INFO] [stdout] 2844439aba678867c4a3932e624a7e17de764c60577bf2b7782fafd85acae974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 565ef58c42dfaf8d44e1c8423e4c33ac5c443605b1755bda825080b725097fa7
[INFO] running `Command { std: "docker" "start" "-a" "565ef58c42dfaf8d44e1c8423e4c33ac5c443605b1755bda825080b725097fa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling test-case-macros v2.2.2
[INFO] [stderr]    Compiling test-case v2.2.2
[INFO] [stderr]    Compiling st_ring_buffer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.71s
[INFO] running `Command { std: "docker" "inspect" "565ef58c42dfaf8d44e1c8423e4c33ac5c443605b1755bda825080b725097fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "565ef58c42dfaf8d44e1c8423e4c33ac5c443605b1755bda825080b725097fa7", kill_on_drop: false }`
[INFO] [stdout] 565ef58c42dfaf8d44e1c8423e4c33ac5c443605b1755bda825080b725097fa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b3d499db8e37e7ae4f8eee7fb6c7875436663e1dfed6c4939c67fed3b204169f
[INFO] running `Command { std: "docker" "start" "-a" "b3d499db8e37e7ae4f8eee7fb6c7875436663e1dfed6c4939c67fed3b204169f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/st_ring_buffer-21e91b6b02baaf62)
[INFO] [stdout] 
[INFO] [stdout] running 49 tests
[INFO] [stdout] test tests::align::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::align::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::align_linear::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::align_linear::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::basic::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::basic::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::big_char_small_gap::_mut_heapstringbuffer_new_4_expects ... ok
[INFO] [stdout] test tests::basic_str::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::basic_str::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::big_char_small_gap::_mut_stringbuffer_4_new_expects ... ok
[INFO] [stdout] test tests::big_edge_str::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::big_edge::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::big_edge::_mut_heapstringbuffer_new_5_expects ... ok
[INFO] [stdout] test tests::from_box_slice ... ok
[INFO] [stdout] test tests::big_edge_str::_mut_stringbuffer_5_new_expects ... ok
[INFO] [stdout] test tests::from_string ... ok
[INFO] [stdout] test tests::from_vec ... ok
[INFO] [stdout] test tests::next_char_boundary_none ... ok
[INFO] [stdout] test tests::next_char_boundary_simple ... ok
[INFO] [stdout] test tests::pop_char::_mut_heapstringbuffer_new_4_expects ... ok
[INFO] [stdout] test tests::pop_char::_mut_stringbuffer_4_new_expects ... ok
[INFO] [stdout] test tests::next_char_boundary_three_byte ... ok
[INFO] [stdout] test tests::pop_front::_mut_heapstringbuffer_new_4_expects ... ok
[INFO] [stdout] test tests::pop_front_to_empty::_mut_heapstringbuffer_new_4_expects ... ok
[INFO] [stdout] test tests::pop_front::_mut_stringbuffer_4_new_expects ... ok
[INFO] [stdout] test tests::next_char_boundary_two_byte ... ok
[INFO] [stdout] test tests::pop_front_to_empty::_mut_stringbuffer_4_new_expects ... ok
[INFO] [stdout] test tests::prev_char_boundary_simple ... ok
[INFO] [stdout] test tests::test_sync ... ok
[INFO] [stdout] test tests::prev_char_boundary_three_byte ... ok
[INFO] [stdout] test tests::too_big::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::too_big::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::pop_to_empty::_mut_heapstringbuffer_new_4_expects ... ok
[INFO] [stdout] test tests::pop_to_empty::_mut_stringbuffer_4_new_expects ... ok
[INFO] [stdout] test tests::try_push_some::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::try_str_all::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::two_byte::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::prev_char_boundary_two_byte ... ok
[INFO] [stdout] test tests::try_str_all::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::two_byte::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::test_send ... ok
[INFO] [stdout] test tests::two_byte_str::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::too_big_str::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::try_char::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::two_byte_str::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] test tests::try_char::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::prev_char_boundary_none ... ok
[INFO] [stderr]    Doc-tests st_ring_buffer
[INFO] [stdout] test tests::too_big_str::_mut_heapstringbuffer_new_3_expects ... ok
[INFO] [stdout] test tests::try_push_some::_mut_stringbuffer_3_new_expects ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/lib.rs - StringBuffer::capacity (line 228) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::as_slices (line 165) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::try_push_char (line 81) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::try_push_all (line 136) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::align (line 183) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::try_push_some (line 120) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::align_no_alloc (line 201) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::push_str (line 104) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::push_char (line 61) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::len (line 215) ... ok
[INFO] [stdout] test src/lib.rs - StringBuffer::chars (line 243) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3d499db8e37e7ae4f8eee7fb6c7875436663e1dfed6c4939c67fed3b204169f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d499db8e37e7ae4f8eee7fb6c7875436663e1dfed6c4939c67fed3b204169f", kill_on_drop: false }`
[INFO] [stdout] b3d499db8e37e7ae4f8eee7fb6c7875436663e1dfed6c4939c67fed3b204169f