[INFO] fetching crate shadower 0.1.4...
[INFO] testing shadower-0.1.4 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate shadower 0.1.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate shadower 0.1.4
[INFO] finished tweaking crates.io crate shadower 0.1.4
[INFO] tweaked toml for crates.io crate shadower 0.1.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shadower 0.1.4 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shadower 0.1.4 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] [stderr]   Downloaded toml v0.7.2
[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] [stderr]   Downloaded sct v0.7.0
[INFO] [stderr]   Downloaded os_str_bytes v6.4.1
[INFO] [stderr]   Downloaded anyhow v1.0.69
[INFO] [stderr]   Downloaded libloading v0.7.4
[INFO] [stderr]   Downloaded clang-sys v1.6.0
[INFO] [stderr]   Downloaded flate2 v1.0.25
[INFO] [stderr]   Downloaded clap v4.1.8
[INFO] [stderr]   Downloaded regex v1.7.1
[INFO] [stderr]   Downloaded webpki-roots v0.22.6
[INFO] [stderr]   Downloaded ureq v2.6.2
[INFO] [stderr]   Downloaded aho-corasick v0.7.20
[INFO] [stderr]   Downloaded serde_json v1.0.93
[INFO] [stderr]   Downloaded winnow v0.3.5
[INFO] [stderr]   Downloaded bindgen v0.63.0
[INFO] [stderr]   Downloaded webpki v0.22.0
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded rustls v0.20.8
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded filetime v0.2.20
[INFO] [stderr]   Downloaded regex-syntax v0.6.28
[INFO] [stderr]   Downloaded unicode-bidi v0.3.10
[INFO] [stderr]   Downloaded skia-bindings v0.58.0
[INFO] [stderr]   Downloaded skia-safe v0.58.0
[INFO] [stderr]   Downloaded thiserror v1.0.39
[INFO] [stderr]   Downloaded serde_spanned v0.6.1
[INFO] [stderr]   Downloaded serde v1.0.154
[INFO] [stderr]   Downloaded clap_derive v4.1.8
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded dirs-sys v0.3.7
[INFO] [stderr]   Downloaded dirs v4.0.0
[INFO] [stderr]   Downloaded lazycell v1.3.0
[INFO] [stderr]   Downloaded xattr v0.2.3
[INFO] [stderr]   Downloaded bumpalo v3.12.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded unicode-ident v1.0.7
[INFO] [stderr]   Downloaded serde_derive v1.0.154
[INFO] [stderr]   Downloaded clap_lex v0.3.2
[INFO] [stderr]   Downloaded cexpr v0.6.0
[INFO] [stderr]   Downloaded peeking_take_while v0.1.2
[INFO] [stderr]   Downloaded shlex v1.1.0
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] [stderr]   Downloaded which v4.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded dunce v1.0.3
[INFO] [stderr]   Downloaded fsio v0.4.0
[INFO] [stderr]   Downloaded envmnt v0.10.4
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47724b99ad9813e334aa12ad1ddf6227c4ee2286ccb20f76a2e241bd4bd645a1
[INFO] running `Command { std: "docker" "start" "-a" "47724b99ad9813e334aa12ad1ddf6227c4ee2286ccb20f76a2e241bd4bd645a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47724b99ad9813e334aa12ad1ddf6227c4ee2286ccb20f76a2e241bd4bd645a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47724b99ad9813e334aa12ad1ddf6227c4ee2286ccb20f76a2e241bd4bd645a1", kill_on_drop: false }`
[INFO] [stdout] 47724b99ad9813e334aa12ad1ddf6227c4ee2286ccb20f76a2e241bd4bd645a1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b4bc555ea3115ac245a17ee5f0d3974c59387bfec1e159849ab27c803c148b9
[INFO] running `Command { std: "docker" "start" "-a" "1b4bc555ea3115ac245a17ee5f0d3974c59387bfec1e159849ab27c803c148b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.7
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling serde v1.0.154
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.154
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.10
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling clang-sys v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling bindgen v0.63.0
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 aho-corasick v0.7.20
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[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" "1b4bc555ea3115ac245a17ee5f0d3974c59387bfec1e159849ab27c803c148b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4bc555ea3115ac245a17ee5f0d3974c59387bfec1e159849ab27c803c148b9", kill_on_drop: false }`
[INFO] [stdout] 1b4bc555ea3115ac245a17ee5f0d3974c59387bfec1e159849ab27c803c148b9