[INFO] fetching crate ftc_http 2.2.0...
[INFO] checking ftc_http-2.2.0 against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] extracting crate ftc_http 2.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ftc_http 2.2.0
[INFO] finished tweaking crates.io crate ftc_http 2.2.0
[INFO] tweaked toml for crates.io crate ftc_http 2.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ftc_http 2.2.0 on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ftc_http 2.2.0 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12e6de743e0b55f66dd79638f7904e33f5d6df7651b4d774461e578c74926883
[INFO] running `Command { std: "docker" "start" "-a" "12e6de743e0b55f66dd79638f7904e33f5d6df7651b4d774461e578c74926883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12e6de743e0b55f66dd79638f7904e33f5d6df7651b4d774461e578c74926883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12e6de743e0b55f66dd79638f7904e33f5d6df7651b4d774461e578c74926883", kill_on_drop: false }`
[INFO] [stdout] 12e6de743e0b55f66dd79638f7904e33f5d6df7651b4d774461e578c74926883
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c569c29fa77baaa74b57cccd47aba98f103dcc1472fe923a22b61fa4ce6b5c17
[INFO] running `Command { std: "docker" "start" "-a" "c569c29fa77baaa74b57cccd47aba98f103dcc1472fe923a22b61fa4ce6b5c17", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking psl-types v2.0.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking publicsuffix v2.1.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking async-compression v0.3.8
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking h2 v0.3.6
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking cookie_store v0.15.0
[INFO] [stderr]     Checking confy v0.4.0
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stdout] error: zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-0.14.13/src/proto/h2/mod.rs:450:5
[INFO] [stdout]     |
[INFO] [stdout] 450 |     impossible: Impossible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this field contains `Impossible`, which is not inhabited, and makes it not a breaking change to become non-zero-sized in the future.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c569c29fa77baaa74b57cccd47aba98f103dcc1472fe923a22b61fa4ce6b5c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c569c29fa77baaa74b57cccd47aba98f103dcc1472fe923a22b61fa4ce6b5c17", kill_on_drop: false }`
[INFO] [stdout] c569c29fa77baaa74b57cccd47aba98f103dcc1472fe923a22b61fa4ce6b5c17