[INFO] fetching crate eles 1.0.0...
[INFO] checking eles-1.0.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate eles 1.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate eles 1.0.0
[INFO] finished tweaking crates.io crate eles 1.0.0
[INFO] tweaked toml for crates.io crate eles 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate eles 1.0.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate eles 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be37ff2a7e99dc60650a947d5c0bbebcc9a2948577e09c74f47e5479f3da22f8
[INFO] running `Command { std: "docker" "start" "-a" "be37ff2a7e99dc60650a947d5c0bbebcc9a2948577e09c74f47e5479f3da22f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be37ff2a7e99dc60650a947d5c0bbebcc9a2948577e09c74f47e5479f3da22f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be37ff2a7e99dc60650a947d5c0bbebcc9a2948577e09c74f47e5479f3da22f8", kill_on_drop: false }`
[INFO] [stdout] be37ff2a7e99dc60650a947d5c0bbebcc9a2948577e09c74f47e5479f3da22f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beac4669d30db570a1eda4bdedadaae4b6fea68c7cddcb69a8695a05a34ff592
[INFO] running `Command { std: "docker" "start" "-a" "beac4669d30db570a1eda4bdedadaae4b6fea68c7cddcb69a8695a05a34ff592", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking eles v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/practical_use_case.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 |  S(String),
[INFO] [stdout]    |  - ^^^^^^
[INFO] [stdout]    |  |
[INFO] [stdout]    |  field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -  S(String),
[INFO] [stdout] 14 +  S(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "beac4669d30db570a1eda4bdedadaae4b6fea68c7cddcb69a8695a05a34ff592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beac4669d30db570a1eda4bdedadaae4b6fea68c7cddcb69a8695a05a34ff592", kill_on_drop: false }`
[INFO] [stdout] beac4669d30db570a1eda4bdedadaae4b6fea68c7cddcb69a8695a05a34ff592