[INFO] fetching crate toml-cli 0.2.3...
[INFO] testing toml-cli-0.2.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate toml-cli 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate toml-cli 0.2.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate toml-cli 0.2.3
[INFO] tweaked toml for crates.io crate toml-cli 0.2.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate toml-cli 0.2.3 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 toml-cli 0.2.3 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 cc v1.0.77
[INFO] [stderr]   Downloaded nom v7.1.1
[INFO] [stderr]   Downloaded backtrace v0.3.66
[INFO] [stderr]   Downloaded tempfile v3.3.0
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded ryu v1.0.11
[INFO] [stderr]   Downloaded fastrand v1.8.0
[INFO] [stderr]   Downloaded version_check v0.9.4
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.4
[INFO] [stderr]   Downloaded failure_derive v0.1.8
[INFO] [stderr]   Downloaded toml_edit v0.15.0
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] [stderr]   Downloaded synstructure v0.12.6
[INFO] [stderr]   Downloaded serde v1.0.148
[INFO] [stderr]   Downloaded gimli v0.26.2
[INFO] [stderr]   Downloaded serde_json v1.0.89
[INFO] [stderr]   Downloaded combine v4.6.6
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded instant v0.1.12
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded adler v1.0.2
[INFO] [stderr]   Downloaded syn v1.0.105
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded unicode-width v0.1.10
[INFO] [stderr]   Downloaded bytes v1.3.0
[INFO] [stderr]   Downloaded toml_datetime v0.5.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.47
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81a7622980d5fa59369ba83ad25c4cc850b403ce64bd6384b38c0d274ca53924
[INFO] running `Command { std: "docker" "start" "-a" "81a7622980d5fa59369ba83ad25c4cc850b403ce64bd6384b38c0d274ca53924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81a7622980d5fa59369ba83ad25c4cc850b403ce64bd6384b38c0d274ca53924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a7622980d5fa59369ba83ad25c4cc850b403ce64bd6384b38c0d274ca53924", kill_on_drop: false }`
[INFO] [stdout] 81a7622980d5fa59369ba83ad25c4cc850b403ce64bd6384b38c0d274ca53924
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36e7ab016fd56fbf30d1109544eedfb86a9e6a493fbfdd8fc1e61b12d0678303
[INFO] running `Command { std: "docker" "start" "-a" "36e7ab016fd56fbf30d1109544eedfb86a9e6a493fbfdd8fc1e61b12d0678303", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.148
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 bytes v1.3.0
[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" "36e7ab016fd56fbf30d1109544eedfb86a9e6a493fbfdd8fc1e61b12d0678303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e7ab016fd56fbf30d1109544eedfb86a9e6a493fbfdd8fc1e61b12d0678303", kill_on_drop: false }`
[INFO] [stdout] 36e7ab016fd56fbf30d1109544eedfb86a9e6a493fbfdd8fc1e61b12d0678303
