[INFO] cloning repository https://github.com/simon-mo/rust-cupti
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simon-mo/rust-cupti" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-mo%2Frust-cupti", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-mo%2Frust-cupti'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e1f1e51f3e31ac7ac6b6e37e25ecdaf2e0a35b3
[INFO] checking simon-mo/rust-cupti against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-mo%2Frust-cupti" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/simon-mo/rust-cupti
[INFO] finished tweaking git repo https://github.com/simon-mo/rust-cupti
[INFO] tweaked toml for git repo https://github.com/simon-mo/rust-cupti written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/simon-mo/rust-cupti on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/simon-mo/rust-cupti 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" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bindgen v0.63.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 978089ac9766f3ab938c5e824b8f42d8093c8eaf077d7431c7266a602297c9dd
[INFO] running `Command { std: "docker" "start" "-a" "978089ac9766f3ab938c5e824b8f42d8093c8eaf077d7431c7266a602297c9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978089ac9766f3ab938c5e824b8f42d8093c8eaf077d7431c7266a602297c9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978089ac9766f3ab938c5e824b8f42d8093c8eaf077d7431c7266a602297c9dd", kill_on_drop: false }`
[INFO] [stdout] 978089ac9766f3ab938c5e824b8f42d8093c8eaf077d7431c7266a602297c9dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8b5e8a6d5891a530cd14cc16b9695429993e7902911315746791a3c2a8fc6e6
[INFO] running `Command { std: "docker" "start" "-a" "a8b5e8a6d5891a530cd14cc16b9695429993e7902911315746791a3c2a8fc6e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling bindgen v0.63.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 clang-sys v1.4.0
[INFO] [stderr]    Compiling nom v7.1.2
[INFO] [stderr]    Compiling which v4.3.0
[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" "a8b5e8a6d5891a530cd14cc16b9695429993e7902911315746791a3c2a8fc6e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b5e8a6d5891a530cd14cc16b9695429993e7902911315746791a3c2a8fc6e6", kill_on_drop: false }`
[INFO] [stdout] a8b5e8a6d5891a530cd14cc16b9695429993e7902911315746791a3c2a8fc6e6