[INFO] fetching crate unionize 0.3.0...
[INFO] testing unionize-0.3.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate unionize 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate unionize 0.3.0
[INFO] finished tweaking crates.io crate unionize 0.3.0
[INFO] tweaked toml for crates.io crate unionize 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unionize 0.3.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unionize 0.3.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clang-sys v1.6.1
[INFO] [stderr]   Downloaded xs233 v0.3.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.7
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded prettyplease v0.2.5
[INFO] [stderr]   Downloaded tempfile v3.5.0
[INFO] [stderr]   Downloaded procinfo v0.4.2
[INFO] [stderr]   Downloaded xs233-sys v0.2.0
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded nom v2.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.1
[INFO] [stderr]   Downloaded bindgen v0.65.1
[INFO] [stderr]   Downloaded serde v1.0.164
[INFO] [stderr]   Downloaded serde_cbor v0.10.2
[INFO] [stderr]   Downloaded serde_derive v1.0.164
[INFO] [stderr]   Downloaded sise v0.8.0
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded proptest v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e45f7543508d8856b548c2ceabaa77ca1e9c648bec57b1e703a3e492a5805043
[INFO] running `Command { std: "docker" "start" "-a" "e45f7543508d8856b548c2ceabaa77ca1e9c648bec57b1e703a3e492a5805043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e45f7543508d8856b548c2ceabaa77ca1e9c648bec57b1e703a3e492a5805043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45f7543508d8856b548c2ceabaa77ca1e9c648bec57b1e703a3e492a5805043", kill_on_drop: false }`
[INFO] [stdout] e45f7543508d8856b548c2ceabaa77ca1e9c648bec57b1e703a3e492a5805043
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b34e6e9498abe80e4492895f56b78157813e08a8e2c4e38a389bddc4612908cb
[INFO] running `Command { std: "docker" "start" "-a" "b34e6e9498abe80e4492895f56b78157813e08a8e2c4e38a389bddc4612908cb", 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 v1.0.27
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling prettyplease v0.2.5
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling bindgen v0.65.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling procinfo v0.4.2
[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 quick-error v1.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling cpufeatures v0.2.7
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling sise v0.8.0
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b34e6e9498abe80e4492895f56b78157813e08a8e2c4e38a389bddc4612908cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34e6e9498abe80e4492895f56b78157813e08a8e2c4e38a389bddc4612908cb", kill_on_drop: false }`
[INFO] [stdout] b34e6e9498abe80e4492895f56b78157813e08a8e2c4e38a389bddc4612908cb