[INFO] fetching crate nbt-parser 1.0.0...
[INFO] checking nbt-parser-1.0.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate nbt-parser 1.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate nbt-parser 1.0.0 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 nbt-parser 1.0.0
[INFO] finished tweaking crates.io crate nbt-parser 1.0.0
[INFO] tweaked toml for crates.io crate nbt-parser 1.0.0 written to /workspace/builds/worker-1-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 38 packages to latest compatible versions
[INFO] [stderr]       Adding ascii v0.9.3 (available: v1.1.0)
[INFO] [stderr]       Adding combine v3.8.1 (available: v4.6.7)
[INFO] [stderr]       Adding libflate v0.1.27 (available: v2.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding synstructure v0.12.6 (available: v0.13.1)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d9e4286142c01217ae4c316b77bccdfd793566d51f3823b215c53a6e05d7b0d2
[INFO] running `Command { std: "docker" "start" "-a" "d9e4286142c01217ae4c316b77bccdfd793566d51f3823b215c53a6e05d7b0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9e4286142c01217ae4c316b77bccdfd793566d51f3823b215c53a6e05d7b0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e4286142c01217ae4c316b77bccdfd793566d51f3823b215c53a6e05d7b0d2", kill_on_drop: false }`
[INFO] [stdout] d9e4286142c01217ae4c316b77bccdfd793566d51f3823b215c53a6e05d7b0d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 735e9cdad5c9072c6c15019d1375d6ec2dd939c227d568ab9f2a9b034ed993a7
[INFO] running `Command { std: "docker" "start" "-a" "735e9cdad5c9072c6c15019d1375d6ec2dd939c227d568ab9f2a9b034ed993a7", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking nbt-parser v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.74s
[INFO] running `Command { std: "docker" "inspect" "735e9cdad5c9072c6c15019d1375d6ec2dd939c227d568ab9f2a9b034ed993a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735e9cdad5c9072c6c15019d1375d6ec2dd939c227d568ab9f2a9b034ed993a7", kill_on_drop: false }`
[INFO] [stdout] 735e9cdad5c9072c6c15019d1375d6ec2dd939c227d568ab9f2a9b034ed993a7