[INFO] crate libp2p-swarm 0.20.1 is already in cache
[INFO] checking libp2p-swarm-0.20.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate libp2p-swarm 0.20.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate libp2p-swarm 0.20.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-swarm 0.20.1
[INFO] finished tweaking crates.io crate libp2p-swarm 0.20.1
[INFO] tweaked toml for crates.io crate libp2p-swarm 0.20.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 725136e6dfef9755b5247a7c5f064c1b9310546964fde8d7538b6e56b7b5590a
[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" "725136e6dfef9755b5247a7c5f064c1b9310546964fde8d7538b6e56b7b5590a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "725136e6dfef9755b5247a7c5f064c1b9310546964fde8d7538b6e56b7b5590a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725136e6dfef9755b5247a7c5f064c1b9310546964fde8d7538b6e56b7b5590a", kill_on_drop: false }`
[INFO] [stdout] 725136e6dfef9755b5247a7c5f064c1b9310546964fde8d7538b6e56b7b5590a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53e362471c59645fc34bd0ee30c8dbc71062305987425d579da3109986e18f56
[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" "53e362471c59645fc34bd0ee30c8dbc71062305987425d579da3109986e18f56", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking multihash v0.11.2
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking parity-multiaddr v0.9.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling libp2p-core v0.20.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking multistream-select v0.8.2
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking wasm-timer v0.2.4
[INFO] [stderr]     Checking libp2p-swarm v0.20.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `libp2p_mplex`
[INFO] [stdout]     --> src/lib.rs:1199:9
[INFO] [stdout]      |
[INFO] [stdout] 1199 |     use libp2p_mplex::Multiplex;
[INFO] [stdout]      |         ^^^^^^^^^^^^ use of undeclared type or module `libp2p_mplex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libp2p-swarm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "53e362471c59645fc34bd0ee30c8dbc71062305987425d579da3109986e18f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53e362471c59645fc34bd0ee30c8dbc71062305987425d579da3109986e18f56", kill_on_drop: false }`
[INFO] [stdout] 53e362471c59645fc34bd0ee30c8dbc71062305987425d579da3109986e18f56