[INFO] fetching crate rust-playground-top-crates 0.1.7...
[INFO] checking rust-playground-top-crates-0.1.7 against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] extracting crate rust-playground-top-crates 0.1.7 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rust-playground-top-crates 0.1.7 on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3-tc1/source/Cargo.toml
[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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] [stderr]   Downloaded serde_ignored v0.1.5
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded crates-io v0.34.0
[INFO] [stderr]   Downloaded opener v0.5.0
[INFO] [stderr]   Downloaded bytesize v1.1.0
[INFO] [stderr]   Downloaded git2-curl v0.15.0
[INFO] [stderr]   Downloaded os_info v3.5.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded libgit2-sys v0.13.4+1.4.2
[INFO] [stderr]   Downloaded cargo v0.65.0
[INFO] [stderr]   Downloaded curl-sys v0.4.56+curl-7.83.1
[INFO] [stderr]   Downloaded syn v1.0.101
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] [stderr]   Downloaded toml_edit v0.14.4
[INFO] [stderr]   Downloaded serde_json v1.0.85
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded jobserver v0.1.25
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded cargo-util v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 076237fdc8835e252d1f3a76bf6ef34c39f9a06c7efa655aa121c9e6c83c17f6
[INFO] running `Command { std: "docker" "start" "-a" "076237fdc8835e252d1f3a76bf6ef34c39f9a06c7efa655aa121c9e6c83c17f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "076237fdc8835e252d1f3a76bf6ef34c39f9a06c7efa655aa121c9e6c83c17f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076237fdc8835e252d1f3a76bf6ef34c39f9a06c7efa655aa121c9e6c83c17f6", kill_on_drop: false }`
[INFO] [stdout] 076237fdc8835e252d1f3a76bf6ef34c39f9a06c7efa655aa121c9e6c83c17f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef767789efa595f2fdf2129670f31d4f8af53d72a34fa1eaa2ba999266029042
[INFO] running `Command { std: "docker" "start" "-a" "ef767789efa595f2fdf2129670f31d4f8af53d72a34fa1eaa2ba999266029042", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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]     Checking hex v0.3.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ef767789efa595f2fdf2129670f31d4f8af53d72a34fa1eaa2ba999266029042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef767789efa595f2fdf2129670f31d4f8af53d72a34fa1eaa2ba999266029042", kill_on_drop: false }`
[INFO] [stdout] ef767789efa595f2fdf2129670f31d4f8af53d72a34fa1eaa2ba999266029042