[INFO] fetching crate ttstack 0.0.3...
[INFO] checking ttstack-0.0.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate ttstack 0.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate ttstack 0.0.3 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] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate ttstack 0.0.3
[INFO] finished tweaking crates.io crate ttstack 0.0.3
[INFO] tweaked toml for crates.io crate ttstack 0.0.3 written to /workspace/builds/worker-0-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.3)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (available: v0.9.10)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (available: v0.5.6)
[INFO] [stderr]       Adding ruc v0.4.1 (available: v6.0.1)
[INFO] [stderr]       Adding rustc_version v0.2.3 (available: v0.4.1)
[INFO] [stderr]       Adding semver v0.9.0 (available: v1.0.23)
[INFO] [stderr]       Adding semver-parser v0.7.0 (available: v0.10.2)
[INFO] [stderr]       Adding sha1 v0.6.1 (available: v0.10.6)
[INFO] [stderr]       Adding standback v0.2.17 (available: v0.4.4)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.79)
[INFO] [stderr]       Adding time v0.2.27 (available: v0.3.36)
[INFO] [stderr]       Adding time-macros v0.1.1 (available: v0.2.18)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0e24600fc75e3a8cbdd6bf11ed35a8c67468169d72d75a49ee3776f2a93fc632
[INFO] running `Command { std: "docker" "start" "-a" "0e24600fc75e3a8cbdd6bf11ed35a8c67468169d72d75a49ee3776f2a93fc632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e24600fc75e3a8cbdd6bf11ed35a8c67468169d72d75a49ee3776f2a93fc632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e24600fc75e3a8cbdd6bf11ed35a8c67468169d72d75a49ee3776f2a93fc632", kill_on_drop: false }`
[INFO] [stdout] 0e24600fc75e3a8cbdd6bf11ed35a8c67468169d72d75a49ee3776f2a93fc632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0651aaffdbfe64a3b3b0840ddfb8cc909df3bbd9a4c258543bd4a1ea88dda65a
[INFO] running `Command { std: "docker" "start" "-a" "0651aaffdbfe64a3b3b0840ddfb8cc909df3bbd9a4c258543bd4a1ea88dda65a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling const_fn v0.4.10
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking ruc v0.4.1
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking ttstack v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.80s
[INFO] running `Command { std: "docker" "inspect" "0651aaffdbfe64a3b3b0840ddfb8cc909df3bbd9a4c258543bd4a1ea88dda65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0651aaffdbfe64a3b3b0840ddfb8cc909df3bbd9a4c258543bd4a1ea88dda65a", kill_on_drop: false }`
[INFO] [stdout] 0651aaffdbfe64a3b3b0840ddfb8cc909df3bbd9a4c258543bd4a1ea88dda65a