[INFO] crate honeycomb-tracing 0.0.1 is already in cache
[INFO] checking honeycomb-tracing-0.0.1 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate honeycomb-tracing 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate honeycomb-tracing 0.0.1 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate honeycomb-tracing 0.0.1
[INFO] finished tweaking crates.io crate honeycomb-tracing 0.0.1
[INFO] tweaked toml for crates.io crate honeycomb-tracing 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12128a6f4fef413e0d4fc1a08a0dc8e894c40361010d331da4795b89b734b096
[INFO] running `"docker" "start" "-a" "12128a6f4fef413e0d4fc1a08a0dc8e894c40361010d331da4795b89b734b096"`
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking sharded-slab v0.0.5
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.6
[INFO] [stderr]     Checking aovec v1.1.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking tracing v0.1.13
[INFO] [stderr]     Checking tracing-futures v0.1.1
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr] error[E0432]: unresolved import `tokio_02::executor`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tracing-futures-0.1.1/src/executor/tokio_alpha.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use tokio_02::executor::{Executor, SpawnError, TypedExecutor};
[INFO] [stderr]   |               ^^^^^^^^ could not find `executor` in `tokio_02`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `tracing-futures`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "12128a6f4fef413e0d4fc1a08a0dc8e894c40361010d331da4795b89b734b096"`
[INFO] running `"docker" "rm" "-f" "12128a6f4fef413e0d4fc1a08a0dc8e894c40361010d331da4795b89b734b096"`
[INFO] [stdout] 12128a6f4fef413e0d4fc1a08a0dc8e894c40361010d331da4795b89b734b096