[INFO] cloning repository https://github.com/jupiterbarua/ex1_grpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jupiterbarua/ex1_grpc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupiterbarua%2Fex1_grpc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupiterbarua%2Fex1_grpc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28287006cc47c169effc69b39b3010f7c3d9f76d
[INFO] testing jupiterbarua/ex1_grpc against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjupiterbarua%2Fex1_grpc" "/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/jupiterbarua/ex1_grpc
[INFO] finished tweaking git repo https://github.com/jupiterbarua/ex1_grpc
[INFO] tweaked toml for git repo https://github.com/jupiterbarua/ex1_grpc written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jupiterbarua/ex1_grpc on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jupiterbarua/ex1_grpc 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protoc-rust-grpc v0.8.3
[INFO] [stderr]   Downloaded protoc-rust v2.18.2
[INFO] [stderr]   Downloaded pem v0.8.3
[INFO] [stderr]   Downloaded protoc v2.18.2
[INFO] [stderr]   Downloaded anyhow v1.0.66
[INFO] [stderr]   Downloaded unix_socket v0.5.0
[INFO] [stderr]   Downloaded tls-api v0.4.0
[INFO] [stderr]   Downloaded tls-api-stub v0.4.0
[INFO] [stderr]   Downloaded base64 v0.9.3
[INFO] [stderr]   Downloaded grpc v0.8.3
[INFO] [stderr]   Downloaded log-ndc v0.2.0
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded httpbis v0.9.1
[INFO] [stderr]   Downloaded syn v1.0.105
[INFO] [stderr]   Downloaded regex-syntax v0.6.28
[INFO] [stderr]   Downloaded regex v1.7.0
[INFO] [stderr]   Downloaded protobuf v3.2.0
[INFO] [stderr]   Downloaded protobuf v2.18.2
[INFO] [stderr]   Downloaded protobuf-codegen v2.18.2
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded grpc-compiler v0.8.3
[INFO] [stderr]   Downloaded tls-api v0.9.0
[INFO] [stderr]   Downloaded mio-uds v0.6.8
[INFO] [stderr]   Downloaded pin-project-lite v0.1.12
[INFO] [stderr]   Downloaded tokio v0.2.25
[INFO] [stderr]   Downloaded which v4.3.0
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded protobuf-support v3.2.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdcac760082632c56316fb0b795261fed2c8456023846a2bab4b47c5b7adce65
[INFO] running `Command { std: "docker" "start" "-a" "fdcac760082632c56316fb0b795261fed2c8456023846a2bab4b47c5b7adce65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcac760082632c56316fb0b795261fed2c8456023846a2bab4b47c5b7adce65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcac760082632c56316fb0b795261fed2c8456023846a2bab4b47c5b7adce65", kill_on_drop: false }`
[INFO] [stdout] fdcac760082632c56316fb0b795261fed2c8456023846a2bab4b47c5b7adce65
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f75bc5d5db115d9684cd08d4f214e6cbbf5ec687a3996c12e9c52d271bd46692
[INFO] running `Command { std: "docker" "start" "-a" "f75bc5d5db115d9684cd08d4f214e6cbbf5ec687a3996c12e9c52d271bd46692", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling protobuf v2.18.2
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling tokio v1.22.0
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] 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 httpbis v0.9.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling protobuf v3.2.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling log-ndc v0.2.0
[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" "f75bc5d5db115d9684cd08d4f214e6cbbf5ec687a3996c12e9c52d271bd46692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f75bc5d5db115d9684cd08d4f214e6cbbf5ec687a3996c12e9c52d271bd46692", kill_on_drop: false }`
[INFO] [stdout] f75bc5d5db115d9684cd08d4f214e6cbbf5ec687a3996c12e9c52d271bd46692