[INFO] crate spmc_buffer 0.5.1 is already in cache
[INFO] testing spmc_buffer-0.5.1 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate spmc_buffer 0.5.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate spmc_buffer 0.5.1 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spmc_buffer 0.5.1
[INFO] finished tweaking crates.io crate spmc_buffer 0.5.1
[INFO] tweaked toml for crates.io crate spmc_buffer 0.5.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da39c8ff3263707dd1d372d6761317f5e5e98fcae3f85cbbb955f77ccfe5fff6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da39c8ff3263707dd1d372d6761317f5e5e98fcae3f85cbbb955f77ccfe5fff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da39c8ff3263707dd1d372d6761317f5e5e98fcae3f85cbbb955f77ccfe5fff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da39c8ff3263707dd1d372d6761317f5e5e98fcae3f85cbbb955f77ccfe5fff6", kill_on_drop: false }`
[INFO] [stdout] da39c8ff3263707dd1d372d6761317f5e5e98fcae3f85cbbb955f77ccfe5fff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc0cfe0b95a66ab722ab57dac0c10b7d38eb6526ee0f1177c521c9b3fce28476
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dc0cfe0b95a66ab722ab57dac0c10b7d38eb6526ee0f1177c521c9b3fce28476", kill_on_drop: false }`
[INFO] [stderr]    Compiling testbench v0.7.3
[INFO] [stderr]    Compiling spmc_buffer v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "dc0cfe0b95a66ab722ab57dac0c10b7d38eb6526ee0f1177c521c9b3fce28476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0cfe0b95a66ab722ab57dac0c10b7d38eb6526ee0f1177c521c9b3fce28476", kill_on_drop: false }`
[INFO] [stdout] dc0cfe0b95a66ab722ab57dac0c10b7d38eb6526ee0f1177c521c9b3fce28476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 88c95695237284056edf271fc289865ea19ee8e9a3248bd0faf967beae347c48
[INFO] running `Command { std: "docker" "start" "-a" "88c95695237284056edf271fc289865ea19ee8e9a3248bd0faf967beae347c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling spmc_buffer v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `testbench::race_cell::UsizeRaceCell`
[INFO] [stdout]    --> src/lib.rs:541:39
[INFO] [stdout]     |
[INFO] [stdout] 541 |     use testbench::race_cell::{Racey, UsizeRaceCell};
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^ no `UsizeRaceCell` in `race_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spmc_buffer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "88c95695237284056edf271fc289865ea19ee8e9a3248bd0faf967beae347c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c95695237284056edf271fc289865ea19ee8e9a3248bd0faf967beae347c48", kill_on_drop: false }`
[INFO] [stdout] 88c95695237284056edf271fc289865ea19ee8e9a3248bd0faf967beae347c48