[INFO] fetching crate ungoliant 2.0.0...
[INFO] testing ungoliant-2.0.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate ungoliant 2.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate ungoliant 2.0.0
[INFO] finished tweaking crates.io crate ungoliant 2.0.0
[INFO] tweaked toml for crates.io crate ungoliant 2.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ungoliant 2.0.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ungoliant 2.0.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded warc v0.3.1
[INFO] [stderr]   Downloaded test-log v0.2.11
[INFO] [stderr]   Downloaded libflate v1.3.0
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded ut1_blocklist v0.3.0
[INFO] [stderr]   Downloaded scalable_bloom_filter v0.1.1
[INFO] [stderr]   Downloaded bytelines v2.4.0
[INFO] [stderr]   Downloaded dyn-clone v1.0.10
[INFO] [stderr]   Downloaded pdqselect v0.1.1
[INFO] [stderr]   Downloaded futures-io v0.3.26
[INFO] [stderr]   Downloaded futures-executor v0.3.26
[INFO] [stderr]   Downloaded oxilangtag v0.1.3
[INFO] [stderr]   Downloaded clang-sys v1.6.0
[INFO] [stderr]   Downloaded futures v0.3.26
[INFO] [stderr]   Downloaded futures-channel v0.3.26
[INFO] [stderr]   Downloaded futures-task v0.3.26
[INFO] [stderr]   Downloaded ctclib-pp v0.2.0
[INFO] [stderr]   Downloaded reqwest v0.11.14
[INFO] [stderr]   Downloaded hyper v0.14.24
[INFO] [stderr]   Downloaded futures-util v0.3.26
[INFO] [stderr]   Downloaded runiq-lib v1.2.2
[INFO] [stderr]   Downloaded futures-macro v0.3.26
[INFO] [stderr]   Downloaded tlsh-fixed v0.1.1
[INFO] [stderr]   Downloaded futures-core v0.3.26
[INFO] [stderr]   Downloaded ctclib-kenlm-sys v0.1.0
[INFO] [stderr]   Downloaded csv v1.2.0
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded cfasttext-sys v0.7.6
[INFO] [stderr]   Downloaded oscar-io v0.2.3
[INFO] [stderr]   Downloaded fasttext v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87b65fb9fdf5da23ea1f8aaf809dc93d8db2a4ad5f4fca37bc697cd288d96caa
[INFO] running `Command { std: "docker" "start" "-a" "87b65fb9fdf5da23ea1f8aaf809dc93d8db2a4ad5f4fca37bc697cd288d96caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87b65fb9fdf5da23ea1f8aaf809dc93d8db2a4ad5f4fca37bc697cd288d96caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b65fb9fdf5da23ea1f8aaf809dc93d8db2a4ad5f4fca37bc697cd288d96caa", kill_on_drop: false }`
[INFO] [stdout] 87b65fb9fdf5da23ea1f8aaf809dc93d8db2a4ad5f4fca37bc697cd288d96caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b83b0f1da6d778754f028a16b6f83d0241af49b545b91ccedc753d9e31dfdd01
[INFO] running `Command { std: "docker" "start" "-a" "b83b0f1da6d778754f028a16b6f83d0241af49b545b91ccedc753d9e31dfdd01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling unic-common v0.9.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling unic-char-range v0.9.0
[INFO] [stderr]    Compiling unic-ucd-version v0.9.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.152
[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 parking_lot_core v0.9.7
[INFO] [stderr]    Compiling unic-char-property v0.9.0
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling bytes v1.4.0
[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" "b83b0f1da6d778754f028a16b6f83d0241af49b545b91ccedc753d9e31dfdd01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83b0f1da6d778754f028a16b6f83d0241af49b545b91ccedc753d9e31dfdd01", kill_on_drop: false }`
[INFO] [stdout] b83b0f1da6d778754f028a16b6f83d0241af49b545b91ccedc753d9e31dfdd01