[INFO] fetching crate slack-morphism-hyper 0.41.0...
[INFO] checking slack-morphism-hyper-0.41.0 against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] extracting crate slack-morphism-hyper 0.41.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate slack-morphism-hyper 0.41.0
[INFO] finished tweaking crates.io crate slack-morphism-hyper 0.41.0
[INFO] tweaked toml for crates.io crate slack-morphism-hyper 0.41.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slack-morphism-hyper 0.41.0 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 slack-morphism-hyper 0.41.0 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9641c96ec7ee01f5257ec71ccb7dcfa837de4f4c675ce489410169b391b37a61
[INFO] running `Command { std: "docker" "start" "-a" "9641c96ec7ee01f5257ec71ccb7dcfa837de4f4c675ce489410169b391b37a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9641c96ec7ee01f5257ec71ccb7dcfa837de4f4c675ce489410169b391b37a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9641c96ec7ee01f5257ec71ccb7dcfa837de4f4c675ce489410169b391b37a61", kill_on_drop: false }`
[INFO] [stdout] 9641c96ec7ee01f5257ec71ccb7dcfa837de4f4c675ce489410169b391b37a61
[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" "-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] 452e9914d1ee00ab3001bab097449725f848d493cd33e7cbedaa395eac2f746d
[INFO] running `Command { std: "docker" "start" "-a" "452e9914d1ee00ab3001bab097449725f848d493cd33e7cbedaa395eac2f746d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde_derive v1.0.139
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]     Checking bytes v1.1.0
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[INFO] [stderr]    Compiling openssl-sys v0.9.75
[INFO] [stderr]     Checking hashbrown v0.12.2
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[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]     Checking block-buffer v0.10.2
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[INFO] [stderr]     Checking digest v0.10.3
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[INFO] [stderr]    Compiling async-recursion v1.0.0
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[INFO] [stderr]    Compiling darling_macro v0.13.4
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[INFO] [stderr]     Checking git2 v0.14.4
[INFO] [stderr]     Checking tungstenite v0.17.3
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking cargo-lock v8.0.2
[INFO] [stderr]     Checking abscissa_core v0.6.0
[INFO] [stderr]     Checking tokio-tungstenite v0.17.2
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking slack-morphism-models v0.41.0
[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-0.14.20/src/proto/h2/mod.rs:452:5
[INFO] [stdout]     |
[INFO] [stdout] 452 |     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]     Checking crates-index v0.18.8
[INFO] [stderr]     Checking rustsec v0.26.0
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "452e9914d1ee00ab3001bab097449725f848d493cd33e7cbedaa395eac2f746d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452e9914d1ee00ab3001bab097449725f848d493cd33e7cbedaa395eac2f746d", kill_on_drop: false }`
[INFO] [stdout] 452e9914d1ee00ab3001bab097449725f848d493cd33e7cbedaa395eac2f746d