[INFO] fetching crate rcommunity 0.0.3...
[INFO] checking rcommunity-0.0.3 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate rcommunity 0.0.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rcommunity 0.0.3
[INFO] finished tweaking crates.io crate rcommunity 0.0.3
[INFO] tweaked toml for crates.io crate rcommunity 0.0.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcommunity 0.0.3 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b5f2b95980cf57f34c0591b688ce7c7ad7a8fbd518bb025dc454ba891e975fa
[INFO] running `Command { std: "docker" "start" "-a" "0b5f2b95980cf57f34c0591b688ce7c7ad7a8fbd518bb025dc454ba891e975fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b5f2b95980cf57f34c0591b688ce7c7ad7a8fbd518bb025dc454ba891e975fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5f2b95980cf57f34c0591b688ce7c7ad7a8fbd518bb025dc454ba891e975fa", kill_on_drop: false }`
[INFO] [stdout] 0b5f2b95980cf57f34c0591b688ce7c7ad7a8fbd518bb025dc454ba891e975fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad8efbb4d1e185cf0954df74461903e32f88f941801acf7424dc28bada045de8
[INFO] running `Command { std: "docker" "start" "-a" "ad8efbb4d1e185cf0954df74461903e32f88f941801acf7424dc28bada045de8", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking rcommunity_core v0.0.3
[INFO] [stderr]    Compiling rcommunity_macros v0.0.2
[INFO] [stderr]     Checking rcommunity v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> tests/derive.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct User(String);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "ad8efbb4d1e185cf0954df74461903e32f88f941801acf7424dc28bada045de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8efbb4d1e185cf0954df74461903e32f88f941801acf7424dc28bada045de8", kill_on_drop: false }`
[INFO] [stdout] ad8efbb4d1e185cf0954df74461903e32f88f941801acf7424dc28bada045de8