[INFO] fetching crate cursive-multiplex 0.2.15...
[INFO] checking cursive-multiplex-0.2.15 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate cursive-multiplex 0.2.15 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cursive-multiplex 0.2.15 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cursive-multiplex 0.2.15
[INFO] finished tweaking crates.io crate cursive-multiplex 0.2.15
[INFO] tweaked toml for crates.io crate cursive-multiplex 0.2.15 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cursive-multiplex 0.2.15 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] deaf954922270cc9f5c81ead02ac42e2834c65a20de4bc5e52e7832af6234d82
[INFO] running `"docker" "start" "-a" "deaf954922270cc9f5c81ead02ac42e2834c65a20de4bc5e52e7832af6234d82"`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]     Checking arc-swap v0.4.2
[INFO] [stderr]     Checking array-macro v1.0.4
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking indextree v4.0.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking enum-map-internals v0.2.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.2
[INFO] [stderr]     Checking enum-map v0.6.0
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling enumset_derive v0.4.0
[INFO] [stderr]     Checking enumset v0.4.0
[INFO] [stderr]     Checking cursive v0.13.0
[INFO] [stderr]     Checking cursive-multiplex v0.2.15 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> examples/history.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let text = "
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_text`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `"docker" "inspect" "deaf954922270cc9f5c81ead02ac42e2834c65a20de4bc5e52e7832af6234d82"`
[INFO] running `"docker" "rm" "-f" "deaf954922270cc9f5c81ead02ac42e2834c65a20de4bc5e52e7832af6234d82"`
[INFO] [stdout] deaf954922270cc9f5c81ead02ac42e2834c65a20de4bc5e52e7832af6234d82