[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] checking Ibexian/char_predictor against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIbexian%2Fchar_predictor" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Ibexian/char_predictor on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded aligned_alloc v0.1.3 [INFO] [stderr] Downloaded pkg-config v0.3.13 [INFO] [stderr] Downloaded ryu v0.2.5 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.17 [INFO] [stderr] Downloaded socket2 v0.3.7 [INFO] [stderr] Downloaded openssl-sys v0.9.35 [INFO] [stderr] Downloaded curl v0.4.14 [INFO] [stderr] Downloaded filetime v0.2.1 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.17 [INFO] [stderr] Downloaded serde_derive v1.0.74 [INFO] [stderr] Downloaded serde v1.0.74 [INFO] [stderr] Downloaded proc-macro2 v0.4.13 [INFO] [stderr] Downloaded curl-sys v0.4.8 [INFO] [stderr] Downloaded libz-sys v1.0.20 [INFO] [stderr] Downloaded wasm-bindgen v0.2.17 [INFO] [stderr] Downloaded tensorflow-sys v0.13.0 [INFO] [stderr] Downloaded cc v1.0.20 [INFO] [stderr] Downloaded tar v0.4.16 [INFO] [stderr] Downloaded tensorflow v0.10.0 [INFO] [stderr] Downloaded serde_json v1.0.26 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.17 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a7ec20c0767a4bf9cd927fdee62850730e4d03aafd4f9728da4248c9b9d2c8ad [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a7ec20c0767a4bf9cd927fdee62850730e4d03aafd4f9728da4248c9b9d2c8ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a7ec20c0767a4bf9cd927fdee62850730e4d03aafd4f9728da4248c9b9d2c8ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7ec20c0767a4bf9cd927fdee62850730e4d03aafd4f9728da4248c9b9d2c8ad", kill_on_drop: false }` [INFO] [stdout] a7ec20c0767a4bf9cd927fdee62850730e4d03aafd4f9728da4248c9b9d2c8ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 38df46b7046372860c26cac34611be3f3143fbaff45366b797eaf8148d145b23 [INFO] running `Command { std: "docker" "start" "-a" "38df46b7046372860c26cac34611be3f3143fbaff45366b797eaf8148d145b23", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.20 [INFO] [stderr] Compiling pkg-config v0.3.13 [INFO] [stderr] Compiling libc v0.2.43 [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 itoa v0.4.2 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling openssl-probe v0.1.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling log v0.4.4 [INFO] [stderr] Compiling semver v0.9.0 [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] [stderr] Checking aligned_alloc v0.1.3 [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] = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable [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` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "38df46b7046372860c26cac34611be3f3143fbaff45366b797eaf8148d145b23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38df46b7046372860c26cac34611be3f3143fbaff45366b797eaf8148d145b23", kill_on_drop: false }` [INFO] [stdout] 38df46b7046372860c26cac34611be3f3143fbaff45366b797eaf8148d145b23