[INFO] fetching crate gfh 0.0.4...
[INFO] testing gfh-0.0.4 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate gfh 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate gfh 0.0.4
[INFO] finished tweaking crates.io crate gfh 0.0.4
[INFO] tweaked toml for crates.io crate gfh 0.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gfh 0.0.4 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gfh 0.0.4 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zeroize v1.5.7
[INFO] [stderr]   Downloaded rusticata-macros v4.1.0
[INFO] [stderr]   Downloaded asn1-rs-impl v0.1.0
[INFO] [stderr]   Downloaded displaydoc v0.2.3
[INFO] [stderr]   Downloaded oid-registry v0.6.0
[INFO] [stderr]   Downloaded ff v0.12.1
[INFO] [stderr]   Downloaded rfc6979 v0.3.1
[INFO] [stderr]   Downloaded spki v0.6.0
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[INFO] [stderr]   Downloaded os_str_bytes v6.3.1
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[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[INFO] [stderr]   Downloaded aes v0.8.2
[INFO] [stderr]   Downloaded cxx-build v1.0.80
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[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.80
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[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded cipher v0.4.3
[INFO] [stderr]   Downloaded des v0.8.1
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[INFO] [stderr]   Downloaded pbkdf2 v0.11.0
[INFO] [stderr]   Downloaded pcsc-sys v1.2.0
[INFO] [stderr]   Downloaded const-oid v0.7.1
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[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.80
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[INFO] [stderr]   Downloaded num-iter v0.1.43
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[INFO] [stderr]   Downloaded newline-converter v0.2.2
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[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3e16e10685aab3390f85d34c231325b6f78f6238687aaa526d5865cd20f4f3c
[INFO] running `Command { std: "docker" "start" "-a" "e3e16e10685aab3390f85d34c231325b6f78f6238687aaa526d5865cd20f4f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3e16e10685aab3390f85d34c231325b6f78f6238687aaa526d5865cd20f4f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e16e10685aab3390f85d34c231325b6f78f6238687aaa526d5865cd20f4f3c", kill_on_drop: false }`
[INFO] [stdout] e3e16e10685aab3390f85d34c231325b6f78f6238687aaa526d5865cd20f4f3c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccbca9e169928a703525fe896136d458c556519b6aac8c3c7bc026834b9b1765
[INFO] running `Command { std: "docker" "start" "-a" "ccbca9e169928a703525fe896136d458c556519b6aac8c3c7bc026834b9b1765", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling const-oid v0.9.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling pem-rfc7468 v0.6.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling der v0.6.0
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling smallvec v1.10.0
[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] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pem-rfc7468 v0.3.1
[INFO] [stderr]    Compiling const-oid v0.7.1
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling oid-registry v0.6.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling pcsc-sys v1.2.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling num-bigint-dig v0.8.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[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" "ccbca9e169928a703525fe896136d458c556519b6aac8c3c7bc026834b9b1765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccbca9e169928a703525fe896136d458c556519b6aac8c3c7bc026834b9b1765", kill_on_drop: false }`
[INFO] [stdout] ccbca9e169928a703525fe896136d458c556519b6aac8c3c7bc026834b9b1765