[INFO] fetching crate ergo-headless-dapp-framework 0.1.11...
[INFO] checking ergo-headless-dapp-framework-0.1.11 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate ergo-headless-dapp-framework 0.1.11 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ergo-headless-dapp-framework 0.1.11 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergo-headless-dapp-framework 0.1.11
[INFO] finished tweaking crates.io crate ergo-headless-dapp-framework 0.1.11
[INFO] tweaked toml for crates.io crate ergo-headless-dapp-framework 0.1.11 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ergo-lib-wasm v0.5.1
[INFO] [stderr]   Downloaded ergo_headless_dapp_framework_derive v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] faf8f4ce47a964037004675659885a3e5609e0988aff98bb37d1ea8a414c42d8
[INFO] running `Command { std: "docker" "start" "-a" "faf8f4ce47a964037004675659885a3e5609e0988aff98bb37d1ea8a414c42d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faf8f4ce47a964037004675659885a3e5609e0988aff98bb37d1ea8a414c42d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf8f4ce47a964037004675659885a3e5609e0988aff98bb37d1ea8a414c42d8", kill_on_drop: false }`
[INFO] [stdout] faf8f4ce47a964037004675659885a3e5609e0988aff98bb37d1ea8a414c42d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0572cf9337d16d84db8435691090f41c8a41ab71d54db12b29bc2970d1b299d
[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" "c0572cf9337d16d84db8435691090f41c8a41ab71d54db12b29bc2970d1b299d", kill_on_drop: false }`
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking indexmap v1.6.2
[INFO] [stderr]    Compiling ergo_headless_dapp_framework_derive v0.1.2
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num-bigint v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking ergo-lib v0.5.1
[INFO] [stderr]     Checking ergo-lib-wasm v0.5.1
[INFO] [stderr]     Checking ergo-headless-dapp-framework v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/encoding.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let t = build_token(
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.20s
[INFO] running `Command { std: "docker" "inspect" "c0572cf9337d16d84db8435691090f41c8a41ab71d54db12b29bc2970d1b299d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0572cf9337d16d84db8435691090f41c8a41ab71d54db12b29bc2970d1b299d", kill_on_drop: false }`
[INFO] [stdout] c0572cf9337d16d84db8435691090f41c8a41ab71d54db12b29bc2970d1b299d