[INFO] fetching crate rust-playground-top-crates 0.1.7...
[INFO] testing rust-playground-top-crates-0.1.7 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate rust-playground-top-crates 0.1.7 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rust-playground-top-crates 0.1.7
[INFO] finished tweaking crates.io crate rust-playground-top-crates 0.1.7
[INFO] tweaked toml for crates.io crate rust-playground-top-crates 0.1.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-playground-top-crates 0.1.7 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 rust-playground-top-crates 0.1.7 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 proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded jobserver v0.1.25
[INFO] [stderr]   Downloaded opener v0.5.0
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded vte_generate_state_changes v0.1.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.33
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded cargo-util v0.2.1
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded fwdansi v1.1.0
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded cargo-platform v0.1.2
[INFO] [stderr]   Downloaded toml_edit v0.14.4
[INFO] [stderr]   Downloaded globset v0.4.9
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded syn v1.0.101
[INFO] [stderr]   Downloaded strip-ansi-escapes v0.1.1
[INFO] [stderr]   Downloaded reqwest v0.11.12
[INFO] [stderr]   Downloaded openssl-sys v0.9.76
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded ignore v0.4.18
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded os_info v3.5.1
[INFO] [stderr]   Downloaded kstring v2.0.0
[INFO] [stderr]   Downloaded crates-io v0.34.0
[INFO] [stderr]   Downloaded git2-curl v0.15.0
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded rustc-workspace-hack v1.0.0
[INFO] [stderr]   Downloaded serde_ignored v0.1.5
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded openssl v0.10.42
[INFO] [stderr]   Downloaded cargo v0.65.0
[INFO] [stderr]   Downloaded libz-sys v1.1.8
[INFO] [stderr]   Downloaded libgit2-sys v0.13.4+1.4.2
[INFO] [stderr]   Downloaded bytesize v1.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.56+curl-7.83.1
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded h2 v0.3.14
[INFO] [stderr]   Downloaded libssh2-sys v0.2.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1467bde1265a9ed26d6155c3b9f22eddcb733141d737035b275a266f49947fef
[INFO] running `Command { std: "docker" "start" "-a" "1467bde1265a9ed26d6155c3b9f22eddcb733141d737035b275a266f49947fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1467bde1265a9ed26d6155c3b9f22eddcb733141d737035b275a266f49947fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1467bde1265a9ed26d6155c3b9f22eddcb733141d737035b275a266f49947fef", kill_on_drop: false }`
[INFO] [stdout] 1467bde1265a9ed26d6155c3b9f22eddcb733141d737035b275a266f49947fef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] bdb070c3153144e3c136ed826d222c7a9eee0b9f21859bf7bd5d5ef952859ba9
[INFO] running `Command { std: "docker" "start" "-a" "bdb070c3153144e3c136ed826d222c7a9eee0b9f21859bf7bd5d5ef952859ba9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tracing-core v0.1.29
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling futures-sink v0.3.24
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 bstr v0.2.17
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling hex v0.3.2
[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" "bdb070c3153144e3c136ed826d222c7a9eee0b9f21859bf7bd5d5ef952859ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb070c3153144e3c136ed826d222c7a9eee0b9f21859bf7bd5d5ef952859ba9", kill_on_drop: false }`
[INFO] [stdout] bdb070c3153144e3c136ed826d222c7a9eee0b9f21859bf7bd5d5ef952859ba9