[INFO] cloning repository https://github.com/Discookie/cr-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Discookie/cr-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiscookie%2Fcr-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiscookie%2Fcr-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d65adc589440912147f821199631cbd4614d01e4
[INFO] checking Discookie/cr-example against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiscookie%2Fcr-example" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Discookie/cr-example on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Discookie/cr-example
[INFO] finished tweaking git repo https://github.com/Discookie/cr-example
[INFO] tweaked toml for git repo https://github.com/Discookie/cr-example written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Discookie/cr-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c67e2c7a376d733f3ea612f67991498e81a1fc8dc882c80fce560267715df52
[INFO] running `Command { std: "docker" "start" "-a" "5c67e2c7a376d733f3ea612f67991498e81a1fc8dc882c80fce560267715df52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c67e2c7a376d733f3ea612f67991498e81a1fc8dc882c80fce560267715df52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c67e2c7a376d733f3ea612f67991498e81a1fc8dc882c80fce560267715df52", kill_on_drop: false }`
[INFO] [stdout] 5c67e2c7a376d733f3ea612f67991498e81a1fc8dc882c80fce560267715df52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f815376871e48297c501103ccefb34c29b9ab696dc111308f4330ae1984d2d76
[INFO] running `Command { std: "docker" "start" "-a" "f815376871e48297c501103ccefb34c29b9ab696dc111308f4330ae1984d2d76", kill_on_drop: false }`
[INFO] [stderr]     Checking chains-macros v0.1.0 (/opt/rustwide/workdir/chains-macros)
[INFO] [stdout] error[E0635]: unknown feature `chains_of_recurrences`
[INFO] [stdout]  --> chains-macros/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(chains_of_recurrences)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chains-macros` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `chains_of_recurrences`
[INFO] [stdout]  --> chains-macros/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(chains_of_recurrences)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f815376871e48297c501103ccefb34c29b9ab696dc111308f4330ae1984d2d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f815376871e48297c501103ccefb34c29b9ab696dc111308f4330ae1984d2d76", kill_on_drop: false }`
[INFO] [stdout] f815376871e48297c501103ccefb34c29b9ab696dc111308f4330ae1984d2d76