[INFO] cloning repository https://github.com/purposed/tidy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/purposed/tidy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 042a995e86af0bc996c4372b0efaff6ea0b067e6
[INFO] testing purposed/tidy against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurposed%2Ftidy" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/purposed/tidy
[INFO] finished tweaking git repo https://github.com/purposed/tidy
[INFO] tweaked toml for git repo https://github.com/purposed/tidy written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/purposed/tidy 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 git repo https://github.com/purposed/tidy 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 unicode-ident v1.0.1
[INFO] [stderr]   Downloaded parking_lot_core v0.9.3
[INFO] [stderr]   Downloaded quote v1.0.19
[INFO] [stderr]   Downloaded doc-comment v0.3.3
[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded os_str_bytes v6.1.0
[INFO] [stderr]   Downloaded futures-core v0.3.25
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded snafu-derive v0.7.3
[INFO] [stderr]   Downloaded env_logger v0.9.3
[INFO] [stderr]   Downloaded lexical-util v0.8.5
[INFO] [stderr]   Downloaded lexical-write-float v0.8.5
[INFO] [stderr]   Downloaded mio v0.8.4
[INFO] [stderr]   Downloaded num-bigint v0.2.6
[INFO] [stderr]   Downloaded serde_json v1.0.88
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded lexical-parse-float v0.8.5
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded lexical-write-integer v0.8.5
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded regex v1.5.6
[INFO] [stderr]   Downloaded snafu v0.7.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.26
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded ryu v1.0.10
[INFO] [stderr]   Downloaded redox_users v0.4.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded futures-executor v0.3.25
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded slab v0.4.6
[INFO] [stderr]   Downloaded lexical-parse-integer v0.8.6
[INFO] [stderr]   Downloaded lexical-core v0.8.5
[INFO] [stderr]   Downloaded num-complex v0.2.4
[INFO] [stderr]   Downloaded getrandom v0.2.7
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded num-iter v0.1.43
[INFO] [stderr]   Downloaded num-rational v0.2.4
[INFO] [stderr]   Downloaded num v0.2.1
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] [stderr]   Downloaded thiserror-impl v1.0.31
[INFO] [stderr]   Downloaded tokio v1.22.0
[INFO] [stderr]   Downloaded futures-sink v0.3.25
[INFO] [stderr]   Downloaded thiserror v1.0.31
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_i686_msvc v0.36.1
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded parse_duration v2.1.1
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.36.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.36.1
[INFO] [stderr]   Downloaded windows-sys v0.36.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d3963afb7010252a3ebad6659a2045ef31fa2f56879eed6aebf0ae8bc1969843
[INFO] running `Command { std: "docker" "start" "-a" "d3963afb7010252a3ebad6659a2045ef31fa2f56879eed6aebf0ae8bc1969843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3963afb7010252a3ebad6659a2045ef31fa2f56879eed6aebf0ae8bc1969843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3963afb7010252a3ebad6659a2045ef31fa2f56879eed6aebf0ae8bc1969843", kill_on_drop: false }`
[INFO] [stdout] d3963afb7010252a3ebad6659a2045ef31fa2f56879eed6aebf0ae8bc1969843
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bd5c120194a0c56eda1cd05b587167be9d1dc79113bf21c17f8603cd9c78b393
[INFO] running `Command { std: "docker" "start" "-a" "bd5c120194a0c56eda1cd05b587167be9d1dc79113bf21c17f8603cd9c78b393", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-channel v0.3.25
[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 proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling heck v0.4.0
[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" "bd5c120194a0c56eda1cd05b587167be9d1dc79113bf21c17f8603cd9c78b393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5c120194a0c56eda1cd05b587167be9d1dc79113bf21c17f8603cd9c78b393", kill_on_drop: false }`
[INFO] [stdout] bd5c120194a0c56eda1cd05b587167be9d1dc79113bf21c17f8603cd9c78b393