[INFO] fetching crate serde2file 0.6.7...
[INFO] checking serde2file-0.6.7 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate serde2file 0.6.7 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate serde2file 0.6.7 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 serde2file 0.6.7
[INFO] finished tweaking crates.io crate serde2file 0.6.7
[INFO] tweaked toml for crates.io crate serde2file 0.6.7 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding aead v0.4.3 (available: v0.5.2)
[INFO] [stderr]       Adding aes v0.7.5 (available: v0.8.4)
[INFO] [stderr]       Adding aes-gcm v0.9.4 (available: v0.10.3)
[INFO] [stderr]       Adding cipher v0.3.0 (available: v0.4.4)
[INFO] [stderr]       Adding ctr v0.8.0 (available: v0.9.2)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding ghash v0.4.4 (available: v0.5.1)
[INFO] [stderr]       Adding polyval v0.5.3 (available: v0.6.2)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding universal-hash v0.4.1 (available: v0.5.1)
[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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc158b721f9bbfc6d3886b6636fce3be32d893dc031374f7e41c80d399b599ca
[INFO] running `Command { std: "docker" "start" "-a" "bc158b721f9bbfc6d3886b6636fce3be32d893dc031374f7e41c80d399b599ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc158b721f9bbfc6d3886b6636fce3be32d893dc031374f7e41c80d399b599ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc158b721f9bbfc6d3886b6636fce3be32d893dc031374f7e41c80d399b599ca", kill_on_drop: false }`
[INFO] [stdout] bc158b721f9bbfc6d3886b6636fce3be32d893dc031374f7e41c80d399b599ca
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 747c9125c726739f10446fd2375354557febb96b5ccf34241898184d5b00ff21
[INFO] running `Command { std: "docker" "start" "-a" "747c9125c726739f10446fd2375354557febb96b5ccf34241898184d5b00ff21", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking polyval v0.5.3
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking ghash v0.4.4
[INFO] [stderr]     Checking aes-gcm v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling serde2file_macro_derive v0.6.1
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde2file v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.32s
[INFO] running `Command { std: "docker" "inspect" "747c9125c726739f10446fd2375354557febb96b5ccf34241898184d5b00ff21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747c9125c726739f10446fd2375354557febb96b5ccf34241898184d5b00ff21", kill_on_drop: false }`
[INFO] [stdout] 747c9125c726739f10446fd2375354557febb96b5ccf34241898184d5b00ff21