[INFO] cloning repository https://github.com/Ibexian/char_predictor [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ibexian/char_predictor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIbexian%2Fchar_predictor", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIbexian%2Fchar_predictor'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4a75007895fc1f57326754287a21332c038fdf0f [INFO] testing Ibexian/char_predictor against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIbexian%2Fchar_predictor" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Ibexian/char_predictor on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Ibexian/char_predictor [INFO] finished tweaking git repo https://github.com/Ibexian/char_predictor [INFO] tweaked toml for git repo https://github.com/Ibexian/char_predictor written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/Ibexian/char_predictor already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81d7dd3a57e37e7d386e8bc2598d28d2850728d32abaae19761113a15cbfe4df [INFO] running `Command { std: "docker" "start" "-a" "81d7dd3a57e37e7d386e8bc2598d28d2850728d32abaae19761113a15cbfe4df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81d7dd3a57e37e7d386e8bc2598d28d2850728d32abaae19761113a15cbfe4df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81d7dd3a57e37e7d386e8bc2598d28d2850728d32abaae19761113a15cbfe4df", kill_on_drop: false }` [INFO] [stdout] 81d7dd3a57e37e7d386e8bc2598d28d2850728d32abaae19761113a15cbfe4df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40128f8ab1826cbe125f831de0db87acf3fc87e0fa18d753b4105aa006f75ed3 [INFO] running `Command { std: "docker" "start" "-a" "40128f8ab1826cbe125f831de0db87acf3fc87e0fa18d753b4105aa006f75ed3", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.20 [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling pkg-config v0.3.13 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Compiling proc-macro2 v0.4.13 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde v1.0.74 [INFO] [stderr] Compiling ryu v0.2.5 [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.17 [INFO] [stderr] Compiling openssl-probe v0.1.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling itoa v0.4.2 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Compiling build_const v0.2.1 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling byteorder v1.2.4 [INFO] [stderr] Compiling log v0.4.4 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling crc v1.8.1 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling lazy_static v1.1.0 [INFO] [stderr] Compiling socket2 v0.3.7 [INFO] [stderr] Compiling xattr v0.2.2 [INFO] [stderr] Compiling filetime v0.2.1 [INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_def_site' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27 [INFO] [stdout] | [INFO] [stdout] 359 | Span::Nightly(proc_macro::Span::def_site()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #54724 for more information [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 E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "40128f8ab1826cbe125f831de0db87acf3fc87e0fa18d753b4105aa006f75ed3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40128f8ab1826cbe125f831de0db87acf3fc87e0fa18d753b4105aa006f75ed3", kill_on_drop: false }` [INFO] [stdout] 40128f8ab1826cbe125f831de0db87acf3fc87e0fa18d753b4105aa006f75ed3