[INFO] fetching crate pipeawesome2 0.1.3...
[INFO] testing pipeawesome2-0.1.3 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate pipeawesome2 0.1.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate pipeawesome2 0.1.3
[INFO] finished tweaking crates.io crate pipeawesome2 0.1.3
[INFO] tweaked toml for crates.io crate pipeawesome2 0.1.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pipeawesome2 0.1.3 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 pipeawesome2 0.1.3 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dot-generator v0.1.0
[INFO] [stderr]   Downloaded dot-structures v0.1.0
[INFO] [stderr]   Downloaded into-attr v0.1.0
[INFO] [stderr]   Downloaded into-attr-derive v0.1.0
[INFO] [stderr]   Downloaded graphviz-rust v0.1.2
[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] df0331a2a86ec5cd11731bfdf9a731d67e5b8feab55d5ee7161fa5582e41cbd0
[INFO] running `Command { std: "docker" "start" "-a" "df0331a2a86ec5cd11731bfdf9a731d67e5b8feab55d5ee7161fa5582e41cbd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df0331a2a86ec5cd11731bfdf9a731d67e5b8feab55d5ee7161fa5582e41cbd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0331a2a86ec5cd11731bfdf9a731d67e5b8feab55d5ee7161fa5582e41cbd0", kill_on_drop: false }`
[INFO] [stdout] df0331a2a86ec5cd11731bfdf9a731d67e5b8feab55d5ee7161fa5582e41cbd0
[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] a7c026f8a41ac8bf63ce92db403c898a3bd0224de73655eae52f3beddf56a51b
[INFO] running `Command { std: "docker" "start" "-a" "a7c026f8a41ac8bf63ce92db403c898a3bd0224de73655eae52f3beddf56a51b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling async-io v1.9.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-sink v0.3.24
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling dot-structures v0.1.0
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling async-process v1.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.7.1
[INFO] [stderr]    Compiling dot-generator v0.1.0
[INFO] [stderr]    Compiling into-attr v0.1.0
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[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 serde_json v1.0.86
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[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" "a7c026f8a41ac8bf63ce92db403c898a3bd0224de73655eae52f3beddf56a51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c026f8a41ac8bf63ce92db403c898a3bd0224de73655eae52f3beddf56a51b", kill_on_drop: false }`
[INFO] [stdout] a7c026f8a41ac8bf63ce92db403c898a3bd0224de73655eae52f3beddf56a51b