[INFO] fetching crate matrix-ui-serializable 0.1.0...
[INFO] checking matrix-ui-serializable-0.1.0 against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] extracting crate matrix-ui-serializable 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate matrix-ui-serializable 0.1.0
[INFO] finished tweaking crates.io crate matrix-ui-serializable 0.1.0
[INFO] tweaked toml for crates.io crate matrix-ui-serializable 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matrix-ui-serializable 0.1.0 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 matrix-ui-serializable 0.1.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6bc393bfe4c6daeb70f46627768c3bb44ba96781c2aa2bb660e04146e237984e
[INFO] running `Command { std: "docker" "start" "-a" "6bc393bfe4c6daeb70f46627768c3bb44ba96781c2aa2bb660e04146e237984e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bc393bfe4c6daeb70f46627768c3bb44ba96781c2aa2bb660e04146e237984e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bc393bfe4c6daeb70f46627768c3bb44ba96781c2aa2bb660e04146e237984e", kill_on_drop: false }`
[INFO] [stdout] 6bc393bfe4c6daeb70f46627768c3bb44ba96781c2aa2bb660e04146e237984e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9ff711d02784d8d8ce01682d7af819e90055369b9e3472ef35d1522868de75cf
[INFO] running `Command { std: "docker" "start" "-a" "9ff711d02784d8d8ce01682d7af819e90055369b9e3472ef35d1522868de75cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
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[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
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[INFO] [stderr]    Compiling ruma-macros v0.15.2
[INFO] [stderr]    Compiling matrix-pickle-derive v0.2.1
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking matrix-pickle v0.2.1
[INFO] [stderr]     Checking vodozemac v0.9.0
[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-1.6.0/src/proto/h2/mod.rs:427:5
[INFO] [stdout]     |
[INFO] [stdout] 427 |     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 tempfile v3.20.0
[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" "9ff711d02784d8d8ce01682d7af819e90055369b9e3472ef35d1522868de75cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff711d02784d8d8ce01682d7af819e90055369b9e3472ef35d1522868de75cf", kill_on_drop: false }`
[INFO] [stdout] 9ff711d02784d8d8ce01682d7af819e90055369b9e3472ef35d1522868de75cf