[INFO] fetching crate shadow-tls 0.2.20...
[INFO] testing shadow-tls-0.2.20 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate shadow-tls 0.2.20 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate shadow-tls 0.2.20
[INFO] finished tweaking crates.io crate shadow-tls 0.2.20
[INFO] tweaked toml for crates.io crate shadow-tls 0.2.20 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shadow-tls 0.2.20 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shadow-tls 0.2.20 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded monoio-rustls-fork-shadow-tls v0.1.1-mod.0
[INFO] [stderr]   Downloaded auto-const-array v0.2.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded monoio-macros v0.0.3
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded local-sync v0.1.0
[INFO] [stderr]   Downloaded socket2 v0.5.2
[INFO] [stderr]   Downloaded io-uring v0.5.13
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded monoio v0.1.2
[INFO] [stderr]   Downloaded rustls-fork-shadow-tls v0.20.9-mod.2
[INFO] [stderr]   Downloaded nix v0.25.1
[INFO] [stderr]   Downloaded nix v0.26.2
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f5c85ff87b23dbd946fd6d4a505c776502bca56b5849dbd63b7ee324ace3242
[INFO] running `Command { std: "docker" "start" "-a" "4f5c85ff87b23dbd946fd6d4a505c776502bca56b5849dbd63b7ee324ace3242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f5c85ff87b23dbd946fd6d4a505c776502bca56b5849dbd63b7ee324ace3242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5c85ff87b23dbd946fd6d4a505c776502bca56b5849dbd63b7ee324ace3242", kill_on_drop: false }`
[INFO] [stdout] 4f5c85ff87b23dbd946fd6d4a505c776502bca56b5849dbd63b7ee324ace3242
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da7256ed313f7450b2b53a4c8f949f7c6abd3031a06210103bd50f0d510b96e3
[INFO] running `Command { std: "docker" "start" "-a" "da7256ed313f7450b2b53a4c8f949f7c6abd3031a06210103bd50f0d510b96e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling io-uring v0.5.13
[INFO] [stderr]    Compiling rustls-fork-shadow-tls v0.20.9-mod.2
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling cpufeatures v0.2.6
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da7256ed313f7450b2b53a4c8f949f7c6abd3031a06210103bd50f0d510b96e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7256ed313f7450b2b53a4c8f949f7c6abd3031a06210103bd50f0d510b96e3", kill_on_drop: false }`
[INFO] [stdout] da7256ed313f7450b2b53a4c8f949f7c6abd3031a06210103bd50f0d510b96e3
