[INFO] fetching crate linera-wit-bindgen-host-wasmtime-rust 0.2.0...
[INFO] checking linera-wit-bindgen-host-wasmtime-rust-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0
[INFO] finished tweaking crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0
[INFO] tweaked toml for crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 168 packages
[INFO] [stderr]       Adding addr2line v0.17.0 (latest: v0.21.0)
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding cpp_demangle v0.3.5 (latest: v0.4.3)
[INFO] [stderr]       Adding cranelift-bforest v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-codegen v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-codegen-meta v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-codegen-shared v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-entity v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-frontend v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-isle v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-native v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding cranelift-wasm v0.88.2 (latest: v0.106.1)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding errno v0.2.8 (latest: v0.3.8)
[INFO] [stderr]       Adding fallible-iterator v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding file-per-thread-logger v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding gimli v0.26.2 (latest: v0.28.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding io-lifetimes v0.7.5 (latest: v2.0.3)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding ittapi v0.3.5 (latest: v0.4.0)
[INFO] [stderr]       Adding ittapi-sys v0.3.5 (latest: v0.4.0)
[INFO] [stderr]       Adding linux-raw-sys v0.0.46 (latest: v0.6.4)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding memoffset v0.6.5 (latest: v0.9.1)
[INFO] [stderr]       Adding object v0.29.0 (latest: v0.34.0)
[INFO] [stderr]       Adding pulldown-cmark v0.8.0 (latest: v0.10.2)
[INFO] [stderr]       Adding regalloc2 v0.3.2 (latest: v0.9.3)
[INFO] [stderr]       Adding rustix v0.35.16 (latest: v0.38.32)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasmparser v0.89.1 (latest: v0.202.0)
[INFO] [stderr]       Adding wasmtime v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-asm-macros v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-cache v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-cranelift v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-environ v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-fiber v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-jit v1.0.2 (latest: v17.0.2)
[INFO] [stderr]       Adding wasmtime-jit-debug v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-runtime v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding wasmtime-types v1.0.2 (latest: v19.0.1)
[INFO] [stderr]       Adding windows-sys v0.36.1 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-sys v0.42.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.36.1 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.36.1 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.36.1 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.36.1 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.36.1 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.42.2 (latest: v0.52.4)
[INFO] [stderr]       Adding zstd v0.11.2+zstd.1.5.2 (latest: v0.13.1)
[INFO] [stderr]       Adding zstd-safe v5.0.2+zstd.1.5.2 (latest: v7.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-encoder v0.202.0
[INFO] [stderr]   Downloaded wasmtime-jit-debug v1.0.2
[INFO] [stderr]   Downloaded leb128 v0.2.5
[INFO] [stderr]   Downloaded wat v1.202.0
[INFO] [stderr]   Downloaded ittapi v0.3.5
[INFO] [stderr]   Downloaded wasmtime-runtime v1.0.2
[INFO] [stderr]   Downloaded cranelift-frontend v0.88.2
[INFO] [stderr]   Downloaded id-arena v2.2.1
[INFO] [stderr]   Downloaded linera-wit-parser v0.2.0
[INFO] [stderr]   Downloaded linera-wit-bindgen-core v0.2.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.8.0
[INFO] [stderr]   Downloaded linera-wit-bindgen-host-wasmtime-rust-macro v0.2.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.88.2
[INFO] [stderr]   Downloaded psm v0.1.21
[INFO] [stderr]   Downloaded directories-next v2.0.0
[INFO] [stderr]   Downloaded file-per-thread-logger v0.1.6
[INFO] [stderr]   Downloaded wasmtime-cache v1.0.2
[INFO] [stderr]   Downloaded cranelift-native v0.88.2
[INFO] [stderr]   Downloaded cranelift-bforest v0.88.2
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.88.2
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.88.2
[INFO] [stderr]   Downloaded wasmparser v0.89.1
[INFO] [stderr]   Downloaded cranelift-isle v0.88.2
[INFO] [stderr]   Downloaded linera-wit-bindgen-gen-rust-lib v0.2.0
[INFO] [stderr]   Downloaded slice-group-by v0.3.1
[INFO] [stderr]   Downloaded regalloc2 v0.3.2
[INFO] [stderr]   Downloaded linera-wit-bindgen-gen-host-wasmtime-rust v0.2.0
[INFO] [stderr]   Downloaded cranelift-wasm v0.88.2
[INFO] [stderr]   Downloaded wasmtime-cranelift v1.0.2
[INFO] [stderr]   Downloaded cpp_demangle v0.3.5
[INFO] [stderr]   Downloaded ittapi-sys v0.3.5
[INFO] [stderr]   Downloaded wasmtime-jit v1.0.2
[INFO] [stderr]   Downloaded memfd v0.6.4
[INFO] [stderr]   Downloaded fallible-iterator v0.2.0
[INFO] [stderr]   Downloaded cranelift-entity v0.88.2
[INFO] [stderr]   Downloaded wasmtime-types v1.0.2
[INFO] [stderr]   Downloaded wasmtime-environ v1.0.2
[INFO] [stderr]   Downloaded wasmtime-asm-macros v1.0.2
[INFO] [stderr]   Downloaded wasmtime-fiber v1.0.2
[INFO] [stderr]   Downloaded io-lifetimes v0.7.5
[INFO] [stderr]   Downloaded rustix v0.35.16
[INFO] [stderr]   Downloaded wast v202.0.0
[INFO] [stderr]   Downloaded wasmtime v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a62c73c6c3402694ddc545255504c8c73fbfb02fa6767d68afa99c476d8ec8d
[INFO] running `Command { std: "docker" "start" "-a" "9a62c73c6c3402694ddc545255504c8c73fbfb02fa6767d68afa99c476d8ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a62c73c6c3402694ddc545255504c8c73fbfb02fa6767d68afa99c476d8ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a62c73c6c3402694ddc545255504c8c73fbfb02fa6767d68afa99c476d8ec8d", kill_on_drop: false }`
[INFO] [stdout] 9a62c73c6c3402694ddc545255504c8c73fbfb02fa6767d68afa99c476d8ec8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5bce3bf9809f560fd570ab047187ead8bef83cc1df970974ee97e5e2b0b49d5
[INFO] running `Command { std: "docker" "start" "-a" "a5bce3bf9809f560fd570ab047187ead8bef83cc1df970974ee97e5e2b0b49d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling cranelift-isle v0.88.2
[INFO] [stderr]    Compiling io-lifetimes v0.7.5
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.88.2
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.88.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling rustix v0.35.16
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]     Checking bumpalo v3.15.4
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking slice-group-by v0.3.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]     Checking regalloc2 v0.3.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling wasmtime-fiber v1.0.2
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling ittapi-sys v0.3.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling cranelift-codegen v0.88.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling linera-wit-parser v0.2.0
[INFO] [stderr]    Compiling wasmtime-runtime v1.0.2
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking wasmtime-asm-macros v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking wasm-encoder v0.202.0
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling linera-wit-bindgen-core v0.2.0
[INFO] [stderr]     Checking memfd v0.6.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]    Compiling linera-wit-bindgen-gen-host-wasmtime-rust v0.2.0
[INFO] [stderr]    Compiling wasmtime-cache v1.0.2
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking wast v202.0.0
[INFO] [stderr]    Compiling linera-wit-bindgen-gen-rust-lib v0.2.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking file-per-thread-logger v0.1.6
[INFO] [stderr]     Checking ittapi v0.3.5
[INFO] [stderr]    Compiling wasmtime v1.0.2
[INFO] [stderr]    Compiling linera-wit-bindgen-host-wasmtime-rust-macro v0.2.0
[INFO] [stderr]     Checking cranelift-entity v0.88.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking wasmparser v0.89.1
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking cranelift-bforest v0.88.2
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking wat v1.202.0
[INFO] [stderr]     Checking wasmtime-types v1.0.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking wasmtime-environ v1.0.2
[INFO] [stderr]     Checking wasmtime-jit-debug v1.0.2
[INFO] [stderr]     Checking wasmtime-jit v1.0.2
[INFO] [stderr]     Checking cranelift-frontend v0.88.2
[INFO] [stderr]     Checking cranelift-native v0.88.2
[INFO] [stderr]     Checking cranelift-wasm v0.88.2
[INFO] [stderr]     Checking wasmtime-cranelift v1.0.2
[INFO] [stderr]     Checking linera-wit-bindgen-host-wasmtime-rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/region.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/region.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "a5bce3bf9809f560fd570ab047187ead8bef83cc1df970974ee97e5e2b0b49d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5bce3bf9809f560fd570ab047187ead8bef83cc1df970974ee97e5e2b0b49d5", kill_on_drop: false }`
[INFO] [stdout] a5bce3bf9809f560fd570ab047187ead8bef83cc1df970974ee97e5e2b0b49d5
[INFO] checking linera-wit-bindgen-host-wasmtime-rust-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0
[INFO] finished tweaking crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0
[INFO] tweaked toml for crates.io crate linera-wit-bindgen-host-wasmtime-rust 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e3cb825507e4a35d7c26a4b074726bf3a11f683b56799f96ef04713da241bbc
[INFO] running `Command { std: "docker" "start" "-a" "4e3cb825507e4a35d7c26a4b074726bf3a11f683b56799f96ef04713da241bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e3cb825507e4a35d7c26a4b074726bf3a11f683b56799f96ef04713da241bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e3cb825507e4a35d7c26a4b074726bf3a11f683b56799f96ef04713da241bbc", kill_on_drop: false }`
[INFO] [stdout] 4e3cb825507e4a35d7c26a4b074726bf3a11f683b56799f96ef04713da241bbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 548305fa999bd63428f8e2820a90053d884a2a81d3869523e339e2fc5557b4ac
[INFO] running `Command { std: "docker" "start" "-a" "548305fa999bd63428f8e2820a90053d884a2a81d3869523e339e2fc5557b4ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling cranelift-isle v0.88.2
[INFO] [stderr]    Compiling io-lifetimes v0.7.5
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.88.2
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.88.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]     Checking bumpalo v3.15.4
[INFO] [stderr]    Compiling rustix v0.35.16
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]     Checking slice-group-by v0.3.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]     Checking regalloc2 v0.3.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling wasmtime-fiber v1.0.2
[INFO] [stderr]    Compiling ittapi-sys v0.3.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling wasmtime-runtime v1.0.2
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking wasmtime-asm-macros v1.0.2
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling linera-wit-parser v0.2.0
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]    Compiling cranelift-codegen v0.88.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking wasm-encoder v0.202.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking memfd v0.6.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling linera-wit-bindgen-gen-host-wasmtime-rust v0.2.0
[INFO] [stderr]    Compiling linera-wit-bindgen-core v0.2.0
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]    Compiling wasmtime-cache v1.0.2
[INFO] [stderr]     Checking wast v202.0.0
[INFO] [stderr]    Compiling linera-wit-bindgen-gen-rust-lib v0.2.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking directories-next v2.0.0
[INFO] [stderr]     Checking file-per-thread-logger v0.1.6
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking ittapi v0.3.5
[INFO] [stderr]    Compiling wasmtime v1.0.2
[INFO] [stderr]    Compiling linera-wit-bindgen-host-wasmtime-rust-macro v0.2.0
[INFO] [stderr]     Checking cranelift-entity v0.88.2
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking wasmparser v0.89.1
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking cranelift-bforest v0.88.2
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking wat v1.202.0
[INFO] [stderr]     Checking wasmtime-types v1.0.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking wasmtime-environ v1.0.2
[INFO] [stderr]     Checking wasmtime-jit-debug v1.0.2
[INFO] [stderr]     Checking wasmtime-jit v1.0.2
[INFO] [stderr]     Checking cranelift-frontend v0.88.2
[INFO] [stderr]     Checking cranelift-native v0.88.2
[INFO] [stderr]     Checking cranelift-wasm v0.88.2
[INFO] [stderr]     Checking wasmtime-cranelift v1.0.2
[INFO] [stderr]     Checking linera-wit-bindgen-host-wasmtime-rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/region.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/region.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/table.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "548305fa999bd63428f8e2820a90053d884a2a81d3869523e339e2fc5557b4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548305fa999bd63428f8e2820a90053d884a2a81d3869523e339e2fc5557b4ac", kill_on_drop: false }`
[INFO] [stdout] 548305fa999bd63428f8e2820a90053d884a2a81d3869523e339e2fc5557b4ac