[INFO] fetching crate persia-rpc 0.3.0...
[INFO] checking persia-rpc-0.3.0 against beta for pr-78714
[INFO] extracting crate persia-rpc 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate persia-rpc 0.3.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persia-rpc 0.3.0
[INFO] finished tweaking crates.io crate persia-rpc 0.3.0
[INFO] tweaked toml for crates.io crate persia-rpc 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a15a4364e4bb4634738f7cb1b43c2b2f29da7e0f817cb9b73546cfc715e6c73
[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" "1a15a4364e4bb4634738f7cb1b43c2b2f29da7e0f817cb9b73546cfc715e6c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a15a4364e4bb4634738f7cb1b43c2b2f29da7e0f817cb9b73546cfc715e6c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a15a4364e4bb4634738f7cb1b43c2b2f29da7e0f817cb9b73546cfc715e6c73", kill_on_drop: false }`
[INFO] [stdout] 1a15a4364e4bb4634738f7cb1b43c2b2f29da7e0f817cb9b73546cfc715e6c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ca41d74093de3dff86ed972fc5a5263e2a85947c28d2abbb961a8444cee2ec2
[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" "4ca41d74093de3dff86ed972fc5a5263e2a85947c28d2abbb961a8444cee2ec2", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling openssl-src v111.12.0+1.1.1h
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling persia-speedy-derive v0.7.3
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking snafu v0.6.9
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking persia-speedy v0.7.13
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling persia-rpc-macro v0.3.0
[INFO] [stderr]     Checking lz4 v1.23.2
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking persia-rpc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 53s
[INFO] running `Command { std: "docker" "inspect" "4ca41d74093de3dff86ed972fc5a5263e2a85947c28d2abbb961a8444cee2ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca41d74093de3dff86ed972fc5a5263e2a85947c28d2abbb961a8444cee2ec2", kill_on_drop: false }`
[INFO] [stdout] 4ca41d74093de3dff86ed972fc5a5263e2a85947c28d2abbb961a8444cee2ec2