[INFO] updating cached repository https://github.com/localghost/membership
[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] [stderr] From https://github.com/localghost/membership
[INFO] [stderr]  - [deleted]         (none)     -> many_notifications
[INFO] [stderr]    c43f922..6ff30e5  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ff30e5f539be70245bbbd6a06fe3b01d1773e9d
[INFO] checking localghost/membership against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flocalghost%2Fmembership" "/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/localghost/membership 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/localghost/membership
[INFO] finished tweaking git repo https://github.com/localghost/membership
[INFO] tweaked toml for git repo https://github.com/localghost/membership written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/localghost/membership 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] acc09ee73d13bd3cb762c38cf516013b36f6c22c10ed816a64fd6d02335cc44e
[INFO] running `"docker" "start" "-a" "acc09ee73d13bd3cb762c38cf516013b36f6c22c10ed816a64fd6d02335cc44e"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking rand v0.7.1
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking slog-async v2.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]     Checking sloggers v0.3.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking membership v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]    --> src/message_encoder.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |     use std::str::FromStr;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]    --> src/message_encoder.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |         buffer: Limit<BytesMut>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.40s
[INFO] running `"docker" "inspect" "acc09ee73d13bd3cb762c38cf516013b36f6c22c10ed816a64fd6d02335cc44e"`
[INFO] running `"docker" "rm" "-f" "acc09ee73d13bd3cb762c38cf516013b36f6c22c10ed816a64fd6d02335cc44e"`
[INFO] [stdout] acc09ee73d13bd3cb762c38cf516013b36f6c22c10ed816a64fd6d02335cc44e