[INFO] fetching crate nj-core 6.1.0...
[INFO] checking nj-core-6.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate nj-core 6.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate nj-core 6.1.0 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 nj-core 6.1.0
[INFO] finished tweaking crates.io crate nj-core 6.1.0
[INFO] tweaked toml for crates.io crate nj-core 6.1.0 written to /workspace/builds/worker-2-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 110 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.3.1)
[INFO] [stderr]       Adding ctor v0.1.26 (available: v0.2.8)
[INFO] [stderr]       Adding event-listener v2.5.3 (available: v5.3.1)
[INFO] [stderr]       Adding inventory v0.1.11 (available: v0.3.15)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding matchers v0.1.0 (available: v0.2.0)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (available: v0.50.1)
[INFO] [stderr]       Adding regex-automata v0.1.10 (available: v0.4.7)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (available: v0.8.4)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 42a16ecab32fcb6dbf5312ed9d77366ae793c43c99c5bc09c6f706b3bf6153db
[INFO] running `Command { std: "docker" "start" "-a" "42a16ecab32fcb6dbf5312ed9d77366ae793c43c99c5bc09c6f706b3bf6153db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a16ecab32fcb6dbf5312ed9d77366ae793c43c99c5bc09c6f706b3bf6153db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a16ecab32fcb6dbf5312ed9d77366ae793c43c99c5bc09c6f706b3bf6153db", kill_on_drop: false }`
[INFO] [stdout] 42a16ecab32fcb6dbf5312ed9d77366ae793c43c99c5bc09c6f706b3bf6153db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f4f9aa7acfdb1a63af61f20e0b6a5f7f89e63e7e43ce44a66354e981bcea8d11
[INFO] running `Command { std: "docker" "start" "-a" "f4f9aa7acfdb1a63af61f20e0b6a5f7f89e63e7e43ce44a66354e981bcea8d11", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking nj-sys v4.0.0
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling ghost v0.1.17
[INFO] [stderr]    Compiling ctor v0.2.8
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]     Checking thiserror v1.0.64
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking polling v3.7.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking async-io v2.3.4
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.13.0
[INFO] [stderr]     Checking fluvio-future v0.7.0
[INFO] [stderr]     Checking nj-core v6.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `Command { std: "docker" "inspect" "f4f9aa7acfdb1a63af61f20e0b6a5f7f89e63e7e43ce44a66354e981bcea8d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f9aa7acfdb1a63af61f20e0b6a5f7f89e63e7e43ce44a66354e981bcea8d11", kill_on_drop: false }`
[INFO] [stdout] f4f9aa7acfdb1a63af61f20e0b6a5f7f89e63e7e43ce44a66354e981bcea8d11