[INFO] fetching crate shadow-tls 0.2.20...
[INFO] testing shadow-tls-0.2.20 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate shadow-tls 0.2.20 into /workspace/builds/worker-1-tc1/source
[INFO] removed /workspace/builds/worker-1-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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shadow-tls 0.2.20 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-log v0.1.3
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded futures-sink v0.3.28
[INFO] [stderr]   Downloaded clap_lex v0.4.1
[INFO] [stderr]   Downloaded monoio-macros v0.0.3
[INFO] [stderr]   Downloaded anstyle-parse v0.2.0
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded anstream v0.3.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded monoio-rustls-fork-shadow-tls v0.1.1-mod.0
[INFO] [stderr]   Downloaded anstyle-wincon v1.0.0
[INFO] [stderr]   Downloaded futures-core v0.3.28
[INFO] [stderr]   Downloaded anstyle v1.0.0
[INFO] [stderr]   Downloaded local-sync v0.1.0
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded futures-task v0.3.28
[INFO] [stderr]   Downloaded auto-const-array v0.2.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded io-lifetimes v1.0.10
[INFO] [stderr]   Downloaded io-uring v0.5.13
[INFO] [stderr]   Downloaded clap_derive v4.2.0
[INFO] [stderr]   Downloaded socket2 v0.5.2
[INFO] [stderr]   Downloaded anyhow v1.0.70
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded clap v4.2.2
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded monoio v0.1.2
[INFO] [stderr]   Downloaded futures-util v0.3.28
[INFO] [stderr]   Downloaded clap_builder v4.2.2
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded rustls-fork-shadow-tls v0.20.9-mod.2
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] [stderr]   Downloaded nix v0.25.1
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab56d58eb4bdddc6e68da1d2e4e7b0d14ab009e338ce6fc742fd50797fcfda85
[INFO] running `Command { std: "docker" "start" "-a" "ab56d58eb4bdddc6e68da1d2e4e7b0d14ab009e338ce6fc742fd50797fcfda85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab56d58eb4bdddc6e68da1d2e4e7b0d14ab009e338ce6fc742fd50797fcfda85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab56d58eb4bdddc6e68da1d2e4e7b0d14ab009e338ce6fc742fd50797fcfda85", kill_on_drop: false }`
[INFO] [stdout] ab56d58eb4bdddc6e68da1d2e4e7b0d14ab009e338ce6fc742fd50797fcfda85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b1cc04d5202356059dea5db8b1dac1c2e8e4bf8ae979ffb12e0f7309aac265d
[INFO] running `Command { std: "docker" "start" "-a" "9b1cc04d5202356059dea5db8b1dac1c2e8e4bf8ae979ffb12e0f7309aac265d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[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] 
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling utf8parse v0.2.1
[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" "9b1cc04d5202356059dea5db8b1dac1c2e8e4bf8ae979ffb12e0f7309aac265d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1cc04d5202356059dea5db8b1dac1c2e8e4bf8ae979ffb12e0f7309aac265d", kill_on_drop: false }`
[INFO] [stdout] 9b1cc04d5202356059dea5db8b1dac1c2e8e4bf8ae979ffb12e0f7309aac265d