[INFO] fetching crate wasmer-runtime-l1x 0.18.0...
[INFO] checking wasmer-runtime-l1x-0.18.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate wasmer-runtime-l1x 0.18.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wasmer-runtime-l1x 0.18.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-runtime-l1x 0.18.0
[INFO] finished tweaking crates.io crate wasmer-runtime-l1x 0.18.0
[INFO] tweaked toml for crates.io crate wasmer-runtime-l1x 0.18.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate wasmer-runtime-l1x 0.18.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmer-runtime-core-l1x v0.18.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.59.0
[INFO] [stderr]   Downloaded wasmer-win-exception-handler v0.17.1
[INFO] [stderr]   Downloaded cranelift-native v0.59.0
[INFO] [stderr]   Downloaded wabt v0.9.1
[INFO] [stderr]   Downloaded dynasmrt v1.2.3
[INFO] [stderr]   Downloaded inkwell_internals v0.7.0
[INFO] [stderr]   Downloaded wasmer-clif-fork-frontend v0.59.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.59.0
[INFO] [stderr]   Downloaded llvm-sys v80.3.1
[INFO] [stderr]   Downloaded wasmer-runtime-core v0.17.1
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.59.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.59.0
[INFO] [stderr]   Downloaded inkwell v0.1.1
[INFO] [stderr]   Downloaded dynasm v1.2.3
[INFO] [stderr]   Downloaded wasmer-clif-fork-wasm v0.59.0
[INFO] [stderr]   Downloaded wasmer-clif-backend v0.17.1
[INFO] [stderr]   Downloaded wasmer-llvm-backend v0.17.1
[INFO] [stderr]   Downloaded wabt-sys v0.6.1
[INFO] [stderr]   Downloaded wasmer-singlepass-backend-l1x v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c447cc435b0df0bb96a5eadce5e6b28814f1795ae84afc1a2347dc0353924655
[INFO] running `Command { std: "docker" "start" "-a" "c447cc435b0df0bb96a5eadce5e6b28814f1795ae84afc1a2347dc0353924655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c447cc435b0df0bb96a5eadce5e6b28814f1795ae84afc1a2347dc0353924655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c447cc435b0df0bb96a5eadce5e6b28814f1795ae84afc1a2347dc0353924655", kill_on_drop: false }`
[INFO] [stdout] c447cc435b0df0bb96a5eadce5e6b28814f1795ae84afc1a2347dc0353924655
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 723793f69eeb205575da7c25c49148edadeeea808038f97d6dd739d22ee5d77f
[INFO] running `Command { std: "docker" "start" "-a" "723793f69eeb205575da7c25c49148edadeeea808038f97d6dd739d22ee5d77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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 memoffset v0.8.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "723793f69eeb205575da7c25c49148edadeeea808038f97d6dd739d22ee5d77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723793f69eeb205575da7c25c49148edadeeea808038f97d6dd739d22ee5d77f", kill_on_drop: false }`
[INFO] [stdout] 723793f69eeb205575da7c25c49148edadeeea808038f97d6dd739d22ee5d77f