[INFO] cloning repository https://github.com/larry0x/wasm-host-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/larry0x/wasm-host-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarry0x%2Fwasm-host-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarry0x%2Fwasm-host-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8c64466270bbbc53ad4ad958ca17706b5e28294
[INFO] checking larry0x/wasm-host-example against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarry0x%2Fwasm-host-example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/larry0x/wasm-host-example 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 git repo https://github.com/larry0x/wasm-host-example
[INFO] finished tweaking git repo https://github.com/larry0x/wasm-host-example
[INFO] tweaked toml for git repo https://github.com/larry0x/wasm-host-example written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/larry0x/wasm-host-example 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/larry0x/wasmi`
[INFO] [stderr]     Updating git submodule `https://github.com/robbepop/wasm_kernel.git`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/testsuite.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indexmap-nostd v0.4.0
[INFO] [stderr]   Downloaded num-derive v0.4.1
[INFO] [stderr]   Downloaded multi-stash v0.2.0
[INFO] [stderr]   Downloaded wasmparser-nostd v0.100.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9d5ab4f11b092a6846f763627345d4814c59acb9d5cde80dd9b18fd5b8f90bb5
[INFO] running `Command { std: "docker" "start" "-a" "9d5ab4f11b092a6846f763627345d4814c59acb9d5cde80dd9b18fd5b8f90bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d5ab4f11b092a6846f763627345d4814c59acb9d5cde80dd9b18fd5b8f90bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5ab4f11b092a6846f763627345d4814c59acb9d5cde80dd9b18fd5b8f90bb5", kill_on_drop: false }`
[INFO] [stdout] 9d5ab4f11b092a6846f763627345d4814c59acb9d5cde80dd9b18fd5b8f90bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 863bfb29e18642c6d18cc1bea0e569f2c7e4fdac988eeb7f4ca48dfd38467d3d
[INFO] running `Command { std: "docker" "start" "-a" "863bfb29e18642c6d18cc1bea0e569f2c7e4fdac988eeb7f4ca48dfd38467d3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling thiserror v1.0.52
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking indexmap-nostd v0.4.0
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking multi-stash v0.2.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking wasmi_arena v0.4.0 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]     Checking sdk v0.0.0 (/opt/rustwide/workdir/sdk)
[INFO] [stderr]     Checking add v0.0.0 (/opt/rustwide/workdir/guests/add)
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking bank v0.0.0 (/opt/rustwide/workdir/guests/bank)
[INFO] [stderr]     Checking greeter v0.0.0 (/opt/rustwide/workdir/guests/greeter)
[INFO] [stderr]     Checking wasmparser-nostd v0.100.1
[INFO] [stderr]     Checking wasmi_core v0.15.0 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]    Compiling num-derive v0.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.52
[INFO] [stderr]     Checking wasmi v0.32.0-beta.2 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]     Checking host v0.0.0 (/opt/rustwide/workdir/host)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `Command { std: "docker" "inspect" "863bfb29e18642c6d18cc1bea0e569f2c7e4fdac988eeb7f4ca48dfd38467d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863bfb29e18642c6d18cc1bea0e569f2c7e4fdac988eeb7f4ca48dfd38467d3d", kill_on_drop: false }`
[INFO] [stdout] 863bfb29e18642c6d18cc1bea0e569f2c7e4fdac988eeb7f4ca48dfd38467d3d
[INFO] checking larry0x/wasm-host-example against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarry0x%2Fwasm-host-example" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/larry0x/wasm-host-example on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/larry0x/wasm-host-example
[INFO] finished tweaking git repo https://github.com/larry0x/wasm-host-example
[INFO] tweaked toml for git repo https://github.com/larry0x/wasm-host-example written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/larry0x/wasm-host-example 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd45256ab4661a2af69a306429b81b44e650cb41138a8b589286e86ccda112f7
[INFO] running `Command { std: "docker" "start" "-a" "dd45256ab4661a2af69a306429b81b44e650cb41138a8b589286e86ccda112f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd45256ab4661a2af69a306429b81b44e650cb41138a8b589286e86ccda112f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd45256ab4661a2af69a306429b81b44e650cb41138a8b589286e86ccda112f7", kill_on_drop: false }`
[INFO] [stdout] dd45256ab4661a2af69a306429b81b44e650cb41138a8b589286e86ccda112f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c685ddb7152ad9a268a76ce51d0e9d823241fc49fa0b16f9c793ece5523ddc4
[INFO] running `Command { std: "docker" "start" "-a" "7c685ddb7152ad9a268a76ce51d0e9d823241fc49fa0b16f9c793ece5523ddc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking indexmap-nostd v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.52
[INFO] [stderr]     Checking wasmi_arena v0.4.0 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking multi-stash v0.2.0
[INFO] [stderr]     Checking sdk v0.0.0 (/opt/rustwide/workdir/sdk)
[INFO] [stderr]     Checking add v0.0.0 (/opt/rustwide/workdir/guests/add)
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking bank v0.0.0 (/opt/rustwide/workdir/guests/bank)
[INFO] [stderr]     Checking greeter v0.0.0 (/opt/rustwide/workdir/guests/greeter)
[INFO] [stderr]     Checking wasmparser-nostd v0.100.1
[INFO] [stderr]     Checking wasmi_core v0.15.0 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]    Compiling num-derive v0.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.52
[INFO] [stderr]     Checking wasmi v0.32.0-beta.2 (https://github.com/larry0x/wasmi?rev=950d877#950d8773)
[INFO] [stderr]     Checking host v0.0.0 (/opt/rustwide/workdir/host)
[INFO] [stdout] error[E0277]: the trait bound `!: WasmResults` is not satisfied
[INFO] [stdout]    --> host/examples/bank.rs:110:10
[INFO] [stdout]     |
[INFO] [stdout] 110 |     host.call("send", (from_ptr, to_ptr, amount))?;
[INFO] [stdout]     |          ^^^^ the trait `WasmType` is not implemented for `!`, which is required by `!: WasmResults`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `!` to implement `WasmTypeList`
[INFO] [stdout]     = note: required for `!` to implement `WasmResults`
[INFO] [stdout] note: required by a bound in `host::Host::<'a, HostState>::call`
[INFO] [stdout]    --> /opt/rustwide/workdir/host/src/lib.rs:56:18
[INFO] [stdout]     |
[INFO] [stdout] 53  |     pub fn call<Params, Results>(&mut self, name: &str, params: Params) -> Result<Results>
[INFO] [stdout]     |            ---- required by a bound in this associated function
[INFO] [stdout] ...
[INFO] [stdout] 56  |         Results: WasmResults,
[INFO] [stdout]     |                  ^^^^^^^^^^^ required by this bound in `Host::<'a, HostState>::call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `host` (example "bank") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7c685ddb7152ad9a268a76ce51d0e9d823241fc49fa0b16f9c793ece5523ddc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c685ddb7152ad9a268a76ce51d0e9d823241fc49fa0b16f9c793ece5523ddc4", kill_on_drop: false }`
[INFO] [stdout] 7c685ddb7152ad9a268a76ce51d0e9d823241fc49fa0b16f9c793ece5523ddc4