[INFO] fetching crate pretend 0.4.0...
[INFO] checking pretend-0.4.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate pretend 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate pretend 0.4.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretend 0.4.0
[INFO] finished tweaking crates.io crate pretend 0.4.0
[INFO] tweaked toml for crates.io crate pretend 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate pretend 0.4.0 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded basic-toml v0.1.1
[INFO] [stderr]   Downloaded bytestring v1.2.0
[INFO] [stderr]   Downloaded trybuild v1.0.77
[INFO] [stderr]   Downloaded pretend-codegen v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e3a0b9258fb1a13b8e2ad146a1b50f986872316b8d0be06b4e6c7a51374a93d
[INFO] running `Command { std: "docker" "start" "-a" "3e3a0b9258fb1a13b8e2ad146a1b50f986872316b8d0be06b4e6c7a51374a93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e3a0b9258fb1a13b8e2ad146a1b50f986872316b8d0be06b4e6c7a51374a93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e3a0b9258fb1a13b8e2ad146a1b50f986872316b8d0be06b4e6c7a51374a93d", kill_on_drop: false }`
[INFO] [stdout] 3e3a0b9258fb1a13b8e2ad146a1b50f986872316b8d0be06b4e6c7a51374a93d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 794852a6f03a6181a98bbdefaea411c3a82b85896b381794dd63e6b1db652ec9
[INFO] running `Command { std: "docker" "start" "-a" "794852a6f03a6181a98bbdefaea411c3a82b85896b381794dd63e6b1db652ec9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]     Checking unicode-bidi v0.3.10
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.64
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 time v0.2.27
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking alloc-stdlib v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.4
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking idna v0.2.3
[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" "794852a6f03a6181a98bbdefaea411c3a82b85896b381794dd63e6b1db652ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "794852a6f03a6181a98bbdefaea411c3a82b85896b381794dd63e6b1db652ec9", kill_on_drop: false }`
[INFO] [stdout] 794852a6f03a6181a98bbdefaea411c3a82b85896b381794dd63e6b1db652ec9