[INFO] fetching crate sszt 0.1.2...
[INFO] checking sszt-0.1.2 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate sszt 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sszt 0.1.2 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sszt 0.1.2
[INFO] finished tweaking crates.io crate sszt 0.1.2
[INFO] tweaked toml for crates.io crate sszt 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded primitive-types v0.2.4
[INFO] [stderr]   Downloaded ssz v0.1.2
[INFO] [stderr]   Downloaded ssz-derive v0.1.2
[INFO] [stderr]   Downloaded hash-db v0.11.0
[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" "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93bc95b90440bdb62201978c7a77a6e277c596f9451f0c1be6052ebc699fe5ba
[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" "93bc95b90440bdb62201978c7a77a6e277c596f9451f0c1be6052ebc699fe5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93bc95b90440bdb62201978c7a77a6e277c596f9451f0c1be6052ebc699fe5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93bc95b90440bdb62201978c7a77a6e277c596f9451f0c1be6052ebc699fe5ba", kill_on_drop: false }`
[INFO] [stdout] 93bc95b90440bdb62201978c7a77a6e277c596f9451f0c1be6052ebc699fe5ba
[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" "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22e1f5d53bde4c1de6256f8c0ebf1f6cb1e6894f559b12496102b9bd96f91bc3
[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" "22e1f5d53bde4c1de6256f8c0ebf1f6cb1e6894f559b12496102b9bd96f91bc3", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking hash-db v0.11.0
[INFO] [stderr]     Checking rlp v0.4.5
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling ssz-derive v0.1.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking impl-rlp v0.2.1
[INFO] [stderr]     Checking uint v0.7.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking parity-codec v3.5.4
[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking ethbloom v0.6.4
[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]     Checking primitive-types v0.3.0
[INFO] [stderr]     Checking primitive-types v0.2.4
[INFO] [stderr]     Checking ssz v0.1.2
[INFO] [stderr]     Checking ethereum-types v0.6.0
[INFO] [stderr]     Checking sszt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `indexmap::IndexMap`
[INFO] [stdout]   --> src/yaml.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use indexmap::IndexMap;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` 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 36.42s
[INFO] running `Command { std: "docker" "inspect" "22e1f5d53bde4c1de6256f8c0ebf1f6cb1e6894f559b12496102b9bd96f91bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e1f5d53bde4c1de6256f8c0ebf1f6cb1e6894f559b12496102b9bd96f91bc3", kill_on_drop: false }`
[INFO] [stdout] 22e1f5d53bde4c1de6256f8c0ebf1f6cb1e6894f559b12496102b9bd96f91bc3