[INFO] fetching crate mcai-benchmark 0.3.0...
[INFO] checking mcai-benchmark-0.3.0 against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] extracting crate mcai-benchmark 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mcai-benchmark 0.3.0
[INFO] finished tweaking crates.io crate mcai-benchmark 0.3.0
[INFO] tweaked toml for crates.io crate mcai-benchmark 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcai-benchmark 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 232 packages to latest compatible versions
[INFO] [stderr]       Adding bollard v0.12.0 (available: v0.19.3)
[INFO] [stderr]       Adding bollard-stubs v1.42.0-rc.0 (available: v1.42.0-rc.8)
[INFO] [stderr]       Adding byte-unit v4.0.19 (available: v5.1.6)
[INFO] [stderr]       Adding enterpolation v0.1.1 (available: v0.3.0)
[INFO] [stderr]       Adding handlebars v4.5.0 (available: v6.3.2)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding serde_valid v0.2.0 (available: v2.0.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[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] 856b1e797d2af87feff6a24b94b4b5377ac393cc13c5cc2865531a651afe2588
[INFO] running `Command { std: "docker" "start" "-a" "856b1e797d2af87feff6a24b94b4b5377ac393cc13c5cc2865531a651afe2588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "856b1e797d2af87feff6a24b94b4b5377ac393cc13c5cc2865531a651afe2588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856b1e797d2af87feff6a24b94b4b5377ac393cc13c5cc2865531a651afe2588", kill_on_drop: false }`
[INFO] [stdout] 856b1e797d2af87feff6a24b94b4b5377ac393cc13c5cc2865531a651afe2588
[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] 62b49026cfad2c68a1722306bf2622f5b6076a2d1a4309e3d28481472c9c8dd7
[INFO] running `Command { std: "docker" "start" "-a" "62b49026cfad2c68a1722306bf2622f5b6076a2d1a4309e3d28481472c9c8dd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.28
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking polling v2.8.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking topology-traits v0.1.2
[INFO] [stderr]     Checking assert_float_eq v1.2.0
[INFO] [stderr]     Checking byte-unit v4.0.19
[INFO] [stderr]     Checking enterpolation v0.1.1
[INFO] [stderr]     Checking handlebars v4.5.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]    Compiling serde_valid_derive v0.2.0
[INFO] [stderr]     Checking serde_valid v0.2.0
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking async-io v2.6.0
[INFO] [stderr]     Checking tokio-util v0.7.16
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.13.2
[INFO] [stderr]     Checking bollard-stubs v1.42.0-rc.0
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking hyper v0.14.32
[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-0.14.32/src/proto/h2/mod.rs:451:5
[INFO] [stdout]     |
[INFO] [stdout] 451 |     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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "62b49026cfad2c68a1722306bf2622f5b6076a2d1a4309e3d28481472c9c8dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b49026cfad2c68a1722306bf2622f5b6076a2d1a4309e3d28481472c9c8dd7", kill_on_drop: false }`
[INFO] [stdout] 62b49026cfad2c68a1722306bf2622f5b6076a2d1a4309e3d28481472c9c8dd7