[INFO] fetching crate netstack-smoltcp 0.1.3...
[INFO] checking netstack-smoltcp-0.1.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate netstack-smoltcp 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate netstack-smoltcp 0.1.3 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 netstack-smoltcp 0.1.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate netstack-smoltcp 0.1.3
[INFO] tweaked toml for crates.io crate netstack-smoltcp 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate netstack-smoltcp 0.1.3 already has a lockfile, it will not be regenerated
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0d7ded11d58dd9d472617c20a9fe47df4e2ba323d2b14cc52436ab0a63b5c90a
[INFO] running `Command { std: "docker" "start" "-a" "0d7ded11d58dd9d472617c20a9fe47df4e2ba323d2b14cc52436ab0a63b5c90a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d7ded11d58dd9d472617c20a9fe47df4e2ba323d2b14cc52436ab0a63b5c90a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7ded11d58dd9d472617c20a9fe47df4e2ba323d2b14cc52436ab0a63b5c90a", kill_on_drop: false }`
[INFO] [stdout] 0d7ded11d58dd9d472617c20a9fe47df4e2ba323d2b14cc52436ab0a63b5c90a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 080566ee210817666a4def38147c245989dc27a5479d6cff400a91a3be25408a
[INFO] running `Command { std: "docker" "start" "-a" "080566ee210817666a4def38147c245989dc27a5479d6cff400a91a3be25408a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling smoltcp v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking managed v0.8.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking etherparse v0.13.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2-ext v0.1.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio v1.39.3
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tun2 v1.3.1
[INFO] [stderr]     Checking netstack-smoltcp v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.69s
[INFO] running `Command { std: "docker" "inspect" "080566ee210817666a4def38147c245989dc27a5479d6cff400a91a3be25408a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "080566ee210817666a4def38147c245989dc27a5479d6cff400a91a3be25408a", kill_on_drop: false }`
[INFO] [stdout] 080566ee210817666a4def38147c245989dc27a5479d6cff400a91a3be25408a