[INFO] cloning repository https://github.com/organic-nailer/elaphe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/organic-nailer/elaphe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forganic-nailer%2Felaphe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forganic-nailer%2Felaphe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19e38a3345d71540cd5091eac8c9364a53d75f57
[INFO] building organic-nailer/elaphe against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forganic-nailer%2Felaphe" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/organic-nailer/elaphe
[INFO] finished tweaking git repo https://github.com/organic-nailer/elaphe
[INFO] tweaked toml for git repo https://github.com/organic-nailer/elaphe written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/organic-nailer/elaphe on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/organic-nailer/elaphe 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded ciborium-ll v0.2.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded ciborium-io v0.2.0
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded copy_to_output v2.1.0
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded ciborium v0.2.0
[INFO] [stderr]   Downloaded serde_derive v1.0.152
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f023c2f5ef9dfd68f56d3dacee31de581cd732b5dd0ad9908c1f1731da990baf
[INFO] running `Command { std: "docker" "start" "-a" "f023c2f5ef9dfd68f56d3dacee31de581cd732b5dd0ad9908c1f1731da990baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f023c2f5ef9dfd68f56d3dacee31de581cd732b5dd0ad9908c1f1731da990baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f023c2f5ef9dfd68f56d3dacee31de581cd732b5dd0ad9908c1f1731da990baf", kill_on_drop: false }`
[INFO] [stdout] f023c2f5ef9dfd68f56d3dacee31de581cd732b5dd0ad9908c1f1731da990baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eafdd13997d996c667cac20ab55df7bba4bf86a3881c4be97c87de2cc516467
[INFO] running `Command { std: "docker" "start" "-a" "3eafdd13997d996c667cac20ab55df7bba4bf86a3881c4be97c87de2cc516467", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 aho-corasick v0.7.20
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.8
[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" "3eafdd13997d996c667cac20ab55df7bba4bf86a3881c4be97c87de2cc516467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eafdd13997d996c667cac20ab55df7bba4bf86a3881c4be97c87de2cc516467", kill_on_drop: false }`
[INFO] [stdout] 3eafdd13997d996c667cac20ab55df7bba4bf86a3881c4be97c87de2cc516467