[INFO] fetching crate specta 2.0.0-rc.20...
[INFO] checking specta-2.0.0-rc.20 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate specta 2.0.0-rc.20 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate specta 2.0.0-rc.20 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate specta 2.0.0-rc.20
[INFO] finished tweaking crates.io crate specta 2.0.0-rc.20
[INFO] tweaked toml for crates.io crate specta 2.0.0-rc.20 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 167 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding bit-vec v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding cfg_aliases v0.1.1 (available: v0.2.1)
[INFO] [stderr]       Adding fixedbitset v0.4.2 (available: v0.5.7)
[INFO] [stderr]       Adding glam v0.27.0 (available: v0.29.0)
[INFO] [stderr]       Adding glam v0.28.0 (available: v0.29.0)
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding indoc v1.0.9 (available: v2.0.5)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.13.0)
[INFO] [stderr]       Adding nix v0.28.0 (available: v0.29.0)
[INFO] [stderr]       Adding radium v0.7.0 (available: v1.1.0)
[INFO] [stderr]       Adding smol_str v0.2.2 (available: v0.3.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[INFO] [stderr]       Adding wyz v0.5.1 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe9fe1d0d7cda47a654cd6fe7e8c37a3989149007b24d7a11466aee1c6ac3c3b
[INFO] running `Command { std: "docker" "start" "-a" "fe9fe1d0d7cda47a654cd6fe7e8c37a3989149007b24d7a11466aee1c6ac3c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe9fe1d0d7cda47a654cd6fe7e8c37a3989149007b24d7a11466aee1c6ac3c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe9fe1d0d7cda47a654cd6fe7e8c37a3989149007b24d7a11466aee1c6ac3c3b", kill_on_drop: false }`
[INFO] [stdout] fe9fe1d0d7cda47a654cd6fe7e8c37a3989149007b24d7a11466aee1c6ac3c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d73d1aed20accbb939cce7d3c7f1018925fd424ec77ae3999bc2b98603fa08d
[INFO] running `Command { std: "docker" "start" "-a" "0d73d1aed20accbb939cce7d3c7f1018925fd424ec77ae3999bc2b98603fa08d", kill_on_drop: false }`
[INFO] [stderr]     Checking specta v2.0.0-rc.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "0d73d1aed20accbb939cce7d3c7f1018925fd424ec77ae3999bc2b98603fa08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d73d1aed20accbb939cce7d3c7f1018925fd424ec77ae3999bc2b98603fa08d", kill_on_drop: false }`
[INFO] [stdout] 0d73d1aed20accbb939cce7d3c7f1018925fd424ec77ae3999bc2b98603fa08d