[INFO] cloning repository https://github.com/eNipu/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eNipu/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FeNipu%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FeNipu%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feaf5336ee6c26000ef44d3ef9f1a970d34e364e
[INFO] testing eNipu/rust_calculator against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FeNipu%2Frust_calculator" "/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/eNipu/rust_calculator
[INFO] finished tweaking git repo https://github.com/eNipu/rust_calculator
[INFO] tweaked toml for git repo https://github.com/eNipu/rust_calculator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eNipu/rust_calculator on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eNipu/rust_calculator 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing eNipu/rust_calculator against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FeNipu%2Frust_calculator" "/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/eNipu/rust_calculator
[INFO] finished tweaking git repo https://github.com/eNipu/rust_calculator
[INFO] tweaked toml for git repo https://github.com/eNipu/rust_calculator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eNipu/rust_calculator on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eNipu/rust_calculator 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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 pyo3-build-config v0.15.2
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded xattr v0.2.3
[INFO] [stderr]   Downloaded serde_spanned v0.6.2
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded platform-info v0.1.0
[INFO] [stderr]   Downloaded os_info v3.7.0
[INFO] [stderr]   Downloaded configparser v2.1.0
[INFO] [stderr]   Downloaded toml v0.7.4
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.15.2
[INFO] [stderr]   Downloaded pyo3-macros v0.15.2
[INFO] [stderr]   Downloaded hyper-rustls v0.24.0
[INFO] [stderr]   Downloaded cbindgen v0.17.0
[INFO] [stderr]   Downloaded cargo_metadata v0.12.3
[INFO] [stderr]   Downloaded goblin v0.6.1
[INFO] [stderr]   Downloaded bytesize v1.2.0
[INFO] [stderr]   Downloaded scroll_derive v0.11.0
[INFO] [stderr]   Downloaded mailparse v0.13.8
[INFO] [stderr]   Downloaded rustls v0.21.1
[INFO] [stderr]   Downloaded fat-macho v0.4.6
[INFO] [stderr]   Downloaded tokio-rustls v0.24.0
[INFO] [stderr]   Downloaded maturin v0.9.4
[INFO] [stderr]   Downloaded pyo3 v0.15.2
[INFO] [stderr]   Downloaded llvm-bitcode v0.1.2
[INFO] [stderr]   Downloaded scroll_derive v0.10.5
[INFO] [stderr]   Downloaded human-panic v1.1.4
[INFO] [stderr]   Downloaded charset v0.1.3
[INFO] [stderr]   Downloaded platforms v1.1.0
[INFO] [stderr]   Downloaded goblin v0.3.4
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 179e8b915c6d3d8d2d3d14b01db88b5ef8035e80cc941683ccded18db24d55c3
[INFO] running `Command { std: "docker" "start" "-a" "179e8b915c6d3d8d2d3d14b01db88b5ef8035e80cc941683ccded18db24d55c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "179e8b915c6d3d8d2d3d14b01db88b5ef8035e80cc941683ccded18db24d55c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179e8b915c6d3d8d2d3d14b01db88b5ef8035e80cc941683ccded18db24d55c3", kill_on_drop: false }`
[INFO] [stdout] 179e8b915c6d3d8d2d3d14b01db88b5ef8035e80cc941683ccded18db24d55c3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f313fac26d98fb1ec0b89f13336cd61e5f20ef1f6ca7e7724dc503dd3ebecc
[INFO] running `Command { std: "docker" "start" "-a" "93f313fac26d98fb1ec0b89f13336cd61e5f20ef1f6ca7e7724dc503dd3ebecc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling pyo3-build-config v0.15.2
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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] [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" "93f313fac26d98fb1ec0b89f13336cd61e5f20ef1f6ca7e7724dc503dd3ebecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f313fac26d98fb1ec0b89f13336cd61e5f20ef1f6ca7e7724dc503dd3ebecc", kill_on_drop: false }`
[INFO] [stdout] 93f313fac26d98fb1ec0b89f13336cd61e5f20ef1f6ca7e7724dc503dd3ebecc