[INFO] fetching crate squaredb_fm 1.0.0-beta...
[INFO] checking squaredb_fm-1.0.0-beta against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate squaredb_fm 1.0.0-beta into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate squaredb_fm 1.0.0-beta on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate squaredb_fm 1.0.0-beta
[INFO] finished tweaking crates.io crate squaredb_fm 1.0.0-beta
[INFO] tweaked toml for crates.io crate squaredb_fm 1.0.0-beta written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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 83 packages to latest compatible versions
[INFO] [stderr]       Adding aes v0.7.5 (available: v0.8.4)
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding block-buffer v0.9.0 (available: v0.10.4)
[INFO] [stderr]       Adding block-modes v0.8.1 (available: v0.9.1)
[INFO] [stderr]       Adding block-padding v0.2.1 (available: v0.3.3)
[INFO] [stderr]       Adding cipher v0.3.0 (available: v0.4.4)
[INFO] [stderr]       Adding des v0.7.0 (available: v0.8.1)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (available: v0.4.0)
[INFO] [stderr]       Adding md-5 v0.9.1 (available: v0.10.6)
[INFO] [stderr]       Adding sha2 v0.9.9 (available: v0.10.8)
[INFO] [stderr]       Adding tiger v0.1.0 (available: v0.2.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03cf11c6dc83ba77e8342356484f4f537831945029ff305c88fc82a482d3b79f
[INFO] running `Command { std: "docker" "start" "-a" "03cf11c6dc83ba77e8342356484f4f537831945029ff305c88fc82a482d3b79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03cf11c6dc83ba77e8342356484f4f537831945029ff305c88fc82a482d3b79f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03cf11c6dc83ba77e8342356484f4f537831945029ff305c88fc82a482d3b79f", kill_on_drop: false }`
[INFO] [stdout] 03cf11c6dc83ba77e8342356484f4f537831945029ff305c88fc82a482d3b79f
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64d8499f2b60495f61be20043624aed7e44cc341f5be80251bd9fc52d7c2021d
[INFO] running `Command { std: "docker" "start" "-a" "64d8499f2b60495f61be20043624aed7e44cc341f5be80251bd9fc52d7c2021d", kill_on_drop: false }`
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking debug-helper v0.3.13
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crc-any v2.5.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking des v0.7.0
[INFO] [stderr]     Checking block-modes v0.8.1
[INFO] [stderr]     Checking tiger v0.1.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking magic-crypt v3.1.13
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking squaredb_fm v1.0.0-beta (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "64d8499f2b60495f61be20043624aed7e44cc341f5be80251bd9fc52d7c2021d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64d8499f2b60495f61be20043624aed7e44cc341f5be80251bd9fc52d7c2021d", kill_on_drop: false }`
[INFO] [stdout] 64d8499f2b60495f61be20043624aed7e44cc341f5be80251bd9fc52d7c2021d