[INFO] fetching crate spmc_buffer 0.5.1...
[INFO] checking spmc_buffer-0.5.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate spmc_buffer 0.5.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate spmc_buffer 0.5.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded testbench v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1f8c606037c1c9d073254846586ef98985e433188b2936e6244d3aac257b67f
[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" "e1f8c606037c1c9d073254846586ef98985e433188b2936e6244d3aac257b67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1f8c606037c1c9d073254846586ef98985e433188b2936e6244d3aac257b67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f8c606037c1c9d073254846586ef98985e433188b2936e6244d3aac257b67f", kill_on_drop: false }`
[INFO] [stdout] e1f8c606037c1c9d073254846586ef98985e433188b2936e6244d3aac257b67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9eb0237435f6166a877533f3967969a45e3a41133cb22d0a16f9992fbd89e58e
[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" "9eb0237435f6166a877533f3967969a45e3a41133cb22d0a16f9992fbd89e58e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking testbench v0.8.0
[INFO] [stderr]     Checking 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[E0425]: cannot find function `benchmark` in crate `testbench`
[INFO] [stdout]     --> src/lib.rs:1008:20
[INFO] [stdout]      |
[INFO] [stdout] 1008 |         testbench::benchmark(3_000_000_000u32, || {
[INFO] [stdout]      |                    ^^^^^^^^^ not found in `testbench`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]      |
[INFO] [stdout] 998  |     use benchmarks::test::bench::benchmark;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `benchmark` in crate `testbench`
[INFO] [stdout]     --> src/lib.rs:1023:20
[INFO] [stdout]      |
[INFO] [stdout] 1023 |         testbench::benchmark(300_000_000u32, || {
[INFO] [stdout]      |                    ^^^^^^^^^ not found in `testbench`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]      |
[INFO] [stdout] 998  |     use benchmarks::test::bench::benchmark;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `benchmark` in crate `testbench`
[INFO] [stdout]     --> src/lib.rs:1038:20
[INFO] [stdout]      |
[INFO] [stdout] 1038 |         testbench::benchmark(140_000_000u32, || {
[INFO] [stdout]      |                    ^^^^^^^^^ not found in `testbench`
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]      |
[INFO] [stdout] 998  |     use benchmarks::test::bench::benchmark;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `concurrent_benchmark` in crate `testbench`
[INFO] [stdout]     --> src/lib.rs:1056:20
[INFO] [stdout]      |
[INFO] [stdout] 1056 |         testbench::concurrent_benchmark(
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^ not found in `testbench`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `concurrent_benchmark` in crate `testbench`
[INFO] [stdout]     --> src/lib.rs:1079:20
[INFO] [stdout]      |
[INFO] [stdout] 1079 |         testbench::concurrent_benchmark(
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^ not found in `testbench`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[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" "9eb0237435f6166a877533f3967969a45e3a41133cb22d0a16f9992fbd89e58e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb0237435f6166a877533f3967969a45e3a41133cb22d0a16f9992fbd89e58e", kill_on_drop: false }`
[INFO] [stdout] 9eb0237435f6166a877533f3967969a45e3a41133cb22d0a16f9992fbd89e58e