[INFO] fetching crate netmod-mem 0.1.0...
[INFO] checking netmod-mem-0.1.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate netmod-mem 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate netmod-mem 0.1.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netmod-mem 0.1.0
[INFO] finished tweaking crates.io crate netmod-mem 0.1.0
[INFO] tweaked toml for crates.io crate netmod-mem 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded postcard-cobs v0.1.5-pre
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded postcard v0.4.3
[INFO] [stderr]   Downloaded conjoiner-engine v1.2.3
[INFO] [stderr]   Downloaded ratman-identity v0.4.0
[INFO] [stderr]   Downloaded ratman-identity v0.3.0
[INFO] [stderr]   Downloaded ratman-netmod v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a6400c3fd59d3e7e10a8be290e1a453faf2d30ef85f04b0a644472700d9ce51
[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" "0a6400c3fd59d3e7e10a8be290e1a453faf2d30ef85f04b0a644472700d9ce51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a6400c3fd59d3e7e10a8be290e1a453faf2d30ef85f04b0a644472700d9ce51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6400c3fd59d3e7e10a8be290e1a453faf2d30ef85f04b0a644472700d9ce51", kill_on_drop: false }`
[INFO] [stdout] 0a6400c3fd59d3e7e10a8be290e1a453faf2d30ef85f04b0a644472700d9ce51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97ab597cb3f8b8f03c3c88806c065bd71daf3891be931054f284f2b4bb5f3aa8
[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" "97ab597cb3f8b8f03c3c88806c065bd71daf3891be931054f284f2b4bb5f3aa8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]     Checking async-task v4.0.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking futures-lite v1.7.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking async-executor v1.2.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking polling v1.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking async-global-executor v1.0.2
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]     Checking ratman-identity v0.3.0
[INFO] [stderr]     Checking ratman-identity v0.4.0
[INFO] [stderr]     Checking postcard v0.4.3
[INFO] [stderr]     Checking conjoiner-engine v1.2.3
[INFO] [stderr]     Checking ratman-netmod v0.3.0
[INFO] [stderr]     Checking netmod-mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.63s
[INFO] running `Command { std: "docker" "inspect" "97ab597cb3f8b8f03c3c88806c065bd71daf3891be931054f284f2b4bb5f3aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ab597cb3f8b8f03c3c88806c065bd71daf3891be931054f284f2b4bb5f3aa8", kill_on_drop: false }`
[INFO] [stdout] 97ab597cb3f8b8f03c3c88806c065bd71daf3891be931054f284f2b4bb5f3aa8