[INFO] cloning repository https://github.com/factor10/rage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/factor10/rage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffactor10%2Frage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffactor10%2Frage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a74ab81cd299e84a39a765ca7b34e2011b667afa
[INFO] checking factor10/rage/a74ab81cd299e84a39a765ca7b34e2011b667afa against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffactor10%2Frage" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/factor10/rage 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] removed /workspace/builds/worker-2-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/factor10/rage
[INFO] finished tweaking git repo https://github.com/factor10/rage
[INFO] tweaked toml for git repo https://github.com/factor10/rage written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/factor10/rage 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
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[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89c21a7cd50a9f51346ccbc9aa34db99a2e5fa87d1fa31d38ca21892a492ad90
[INFO] running `Command { std: "docker" "start" "-a" "89c21a7cd50a9f51346ccbc9aa34db99a2e5fa87d1fa31d38ca21892a492ad90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89c21a7cd50a9f51346ccbc9aa34db99a2e5fa87d1fa31d38ca21892a492ad90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c21a7cd50a9f51346ccbc9aa34db99a2e5fa87d1fa31d38ca21892a492ad90", kill_on_drop: false }`
[INFO] [stdout] 89c21a7cd50a9f51346ccbc9aa34db99a2e5fa87d1fa31d38ca21892a492ad90
[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=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] 81f5faa3ac7a7ef75197e1af91e9b34e4f42a14ada994b24f02680271bec6dff
[INFO] running `Command { std: "docker" "start" "-a" "81f5faa3ac7a7ef75197e1af91e9b34e4f42a14ada994b24f02680271bec6dff", kill_on_drop: false }`
[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 libc v0.2.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking const-oid v0.9.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling tinystr v0.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking unic-langid-impl v0.9.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling type-map v0.4.0
[INFO] [stderr]     Checking unic-langid v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking io_tee v0.1.1
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[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" "81f5faa3ac7a7ef75197e1af91e9b34e4f42a14ada994b24f02680271bec6dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f5faa3ac7a7ef75197e1af91e9b34e4f42a14ada994b24f02680271bec6dff", kill_on_drop: false }`
[INFO] [stdout] 81f5faa3ac7a7ef75197e1af91e9b34e4f42a14ada994b24f02680271bec6dff