[INFO] fetching crate unidoc 0.7.8...
[INFO] checking unidoc-0.7.8 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate unidoc 0.7.8 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate unidoc 0.7.8 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 unidoc 0.7.8
[INFO] finished tweaking crates.io crate unidoc 0.7.8
[INFO] tweaked toml for crates.io crate unidoc 0.7.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate unidoc 0.7.8 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 9afa804fe1c9f2f004bd5d791b94feb33698210a98fd992f280d5cf382537dad
[INFO] running `Command { std: "docker" "start" "-a" "9afa804fe1c9f2f004bd5d791b94feb33698210a98fd992f280d5cf382537dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9afa804fe1c9f2f004bd5d791b94feb33698210a98fd992f280d5cf382537dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9afa804fe1c9f2f004bd5d791b94feb33698210a98fd992f280d5cf382537dad", kill_on_drop: false }`
[INFO] [stdout] 9afa804fe1c9f2f004bd5d791b94feb33698210a98fd992f280d5cf382537dad
[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] b05b9257dffc5ad66f1baaa3042f75c6870020abc1a567cc50108f456b1383f3
[INFO] running `Command { std: "docker" "start" "-a" "b05b9257dffc5ad66f1baaa3042f75c6870020abc1a567cc50108f456b1383f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.24
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking html-escape v0.2.11
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking emojis v0.4.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling html5ever v0.25.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking tokio-util v0.7.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking string_cache v0.8.4
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]     Checking handlebars v4.2.2
[INFO] [stderr]     Checking kuchiki v0.8.1
[INFO] [stderr]     Checking easy-scraper v0.2.0
[INFO] [stderr]     Checking unidoc v0.7.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "b05b9257dffc5ad66f1baaa3042f75c6870020abc1a567cc50108f456b1383f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05b9257dffc5ad66f1baaa3042f75c6870020abc1a567cc50108f456b1383f3", kill_on_drop: false }`
[INFO] [stdout] b05b9257dffc5ad66f1baaa3042f75c6870020abc1a567cc50108f456b1383f3