[INFO] cloning repository https://github.com/lann/component-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lann/component-rpc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flann%2Fcomponent-rpc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flann%2Fcomponent-rpc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3834dddf3743d7e9ffaab91f92d804da46c3a8b0
[INFO] checking lann/component-rpc against try#2278ef25f90817c20d6dd0d2da58a990eb6f53cb for pr-145108-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flann%2Fcomponent-rpc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lann/component-rpc
[INFO] finished tweaking git repo https://github.com/lann/component-rpc
[INFO] tweaked toml for git repo https://github.com/lann/component-rpc written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lann/component-rpc on toolchain 2278ef25f90817c20d6dd0d2da58a990eb6f53cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2278ef25f90817c20d6dd0d2da58a990eb6f53cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lann/component-rpc 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" "+2278ef25f90817c20d6dd0d2da58a990eb6f53cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/bytecodealliance/wasmtime`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/WASI`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/wasm-c-api`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/wasi-crypto.git`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/wasi-nn`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/testsuite`
[INFO] [stderr]     Updating git repository `https://github.com/bytecodealliance/wasm-tools`
[INFO] [stderr]     Updating git submodule `https://github.com/WebAssembly/testsuite`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-encoder v0.20.0
[INFO] [stderr]   Downloaded ittapi v0.3.2
[INFO] [stderr]   Downloaded wat v1.0.52
[INFO] [stderr]   Downloaded wit-parser v0.3.1
[INFO] [stderr]   Downloaded wasmparser v0.96.0
[INFO] [stderr]   Downloaded regalloc2 v0.5.1
[INFO] [stderr]   Downloaded ittapi-sys v0.3.2
[INFO] [stderr]   Downloaded wasmprinter v0.2.45
[INFO] [stderr]   Downloaded wast v50.0.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2278ef25f90817c20d6dd0d2da58a990eb6f53cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c8c972c290febdaed44188c9349cd87c1eff802349d4139fce4e5550f3aa188
[INFO] running `Command { std: "docker" "start" "-a" "4c8c972c290febdaed44188c9349cd87c1eff802349d4139fce4e5550f3aa188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c8c972c290febdaed44188c9349cd87c1eff802349d4139fce4e5550f3aa188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8c972c290febdaed44188c9349cd87c1eff802349d4139fce4e5550f3aa188", kill_on_drop: false }`
[INFO] [stdout] 4c8c972c290febdaed44188c9349cd87c1eff802349d4139fce4e5550f3aa188
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2278ef25f90817c20d6dd0d2da58a990eb6f53cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d02b48a3c513f6d330e093bf674748b4e09a7f0abba8008b2c65bc32e0dee762
[INFO] running `Command { std: "docker" "start" "-a" "d02b48a3c513f6d330e093bf674748b4e09a7f0abba8008b2c65bc32e0dee762", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]    Compiling target-lexicon v0.12.5
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]    Compiling cranelift-isle v0.92.0 (https://github.com/bytecodealliance/wasmtime#93ae9078)
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.92.0 (https://github.com/bytecodealliance/wasmtime#93ae9078)
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.92.0 (https://github.com/bytecodealliance/wasmtime#93ae9078)
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking wasm-encoder v0.20.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking slice-group-by v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking bumpalo v3.11.1
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling async-trait v0.1.60
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking regalloc2 v0.5.1
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d02b48a3c513f6d330e093bf674748b4e09a7f0abba8008b2c65bc32e0dee762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d02b48a3c513f6d330e093bf674748b4e09a7f0abba8008b2c65bc32e0dee762", kill_on_drop: false }`
[INFO] [stdout] d02b48a3c513f6d330e093bf674748b4e09a7f0abba8008b2c65bc32e0dee762