[INFO] fetching crate serde_flexitos 0.2.2...
[INFO] checking serde_flexitos-0.2.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate serde_flexitos 0.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate serde_flexitos 0.2.2 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 serde_flexitos 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate serde_flexitos 0.2.2
[INFO] tweaked toml for crates.io crate serde_flexitos 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate serde_flexitos 0.2.2 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e54e04a9c35961af8d5056320d0681fa5299551912c4587e6e931a0f132f68a3
[INFO] running `Command { std: "docker" "start" "-a" "e54e04a9c35961af8d5056320d0681fa5299551912c4587e6e931a0f132f68a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e54e04a9c35961af8d5056320d0681fa5299551912c4587e6e931a0f132f68a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54e04a9c35961af8d5056320d0681fa5299551912c4587e6e931a0f132f68a3", kill_on_drop: false }`
[INFO] [stdout] e54e04a9c35961af8d5056320d0681fa5299551912c4587e6e931a0f132f68a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e6c7830b9cd96714e48848fd3a858fff05d3c990400ec1117c5885b68d19e50b
[INFO] running `Command { std: "docker" "start" "-a" "e6c7830b9cd96714e48848fd3a858fff05d3c990400ec1117c5885b68d19e50b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling typeid v1.0.2
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling linkme-impl v0.3.28
[INFO] [stderr]     Checking linkme v0.3.28
[INFO] [stderr]     Checking erased-serde v0.4.5
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking serde_flexitos v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.26s
[INFO] running `Command { std: "docker" "inspect" "e6c7830b9cd96714e48848fd3a858fff05d3c990400ec1117c5885b68d19e50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c7830b9cd96714e48848fd3a858fff05d3c990400ec1117c5885b68d19e50b", kill_on_drop: false }`
[INFO] [stdout] e6c7830b9cd96714e48848fd3a858fff05d3c990400ec1117c5885b68d19e50b