[INFO] updating cached repository https://github.com/apehub/six
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 07627230b0faec2d1cb574b6128be08dcc2f1e69
[INFO] checking apehub/six against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapehub%2Fsix" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/apehub/six on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/apehub/six
[INFO] finished tweaking git repo https://github.com/apehub/six
[INFO] tweaked toml for git repo https://github.com/apehub/six written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/apehub/six already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] d43dbe70b57528dcc277ea35f2b48b97a27a30da8632e3d4f23289cdfed6dbdd
[INFO] running `"docker" "start" "-a" "d43dbe70b57528dcc277ea35f2b48b97a27a30da8632e3d4f23289cdfed6dbdd"`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking tracing v0.1.10
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking actix-codec v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking actix-utils v0.4.7
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]    Compiling const-random-macro v0.1.6
[INFO] [stderr] error[E0425]: cannot find value `__tracing_attr_span` in this scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-executor-0.2.0-alpha.6/src/threadpool/pool/mod.rs:136:65
[INFO] [stderr]     |
[INFO] [stderr] 136 |       pub(crate) fn shutdown(&self, now: bool, purge_queue: bool) {
[INFO] [stderr]     |  _________________________________________________________________^
[INFO] [stderr] 137 | |         let mut state: State = self.state.load(Acquire).into();
[INFO] [stderr] 138 | |         trace!(?state);
[INFO] [stderr] 139 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 194 | |         self.terminate_sleeping_workers();
[INFO] [stderr] 195 | |     }
[INFO] [stderr]     | |_____^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr]     Checking actix-server-config v0.1.2
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking const-random v0.1.6
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `tokio-executor`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d43dbe70b57528dcc277ea35f2b48b97a27a30da8632e3d4f23289cdfed6dbdd"`
[INFO] running `"docker" "rm" "-f" "d43dbe70b57528dcc277ea35f2b48b97a27a30da8632e3d4f23289cdfed6dbdd"`
[INFO] [stdout] d43dbe70b57528dcc277ea35f2b48b97a27a30da8632e3d4f23289cdfed6dbdd