[INFO] updating cached repository Ibexian/char_predictor [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Ibexian/char_predictor [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Ibexian/char_predictor" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ibexian/char_predictor"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ibexian/char_predictor'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Ibexian/char_predictor" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ibexian/char_predictor"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ibexian/char_predictor'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4a75007895fc1f57326754287a21332c038fdf0f [INFO] sha for GitHub repo Ibexian/char_predictor: 4a75007895fc1f57326754287a21332c038fdf0f [INFO] validating manifest of Ibexian/char_predictor on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Ibexian/char_predictor on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Ibexian/char_predictor [INFO] finished frobbing Ibexian/char_predictor [INFO] frobbed toml for Ibexian/char_predictor written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/Ibexian/char_predictor/Cargo.toml [INFO] started frobbing Ibexian/char_predictor [INFO] finished frobbing Ibexian/char_predictor [INFO] frobbed toml for Ibexian/char_predictor written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ibexian/char_predictor/Cargo.toml [INFO] crate Ibexian/char_predictor already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Ibexian/char_predictor against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/Ibexian/char_predictor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5bbe74e445ed9a26a75290487e96a19eb2fda9c6961d4ad845c0fb768beb99aa [INFO] running `"docker" "start" "-a" "5bbe74e445ed9a26a75290487e96a19eb2fda9c6961d4ad845c0fb768beb99aa"` [INFO] [stderr] Compiling proc-macro2 v0.4.13 [INFO] [stderr] Compiling ryu v0.2.5 [INFO] [stderr] Compiling serde v1.0.74 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.17 [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Compiling libz-sys v1.0.20 [INFO] [stderr] Compiling openssl-sys v0.9.35 [INFO] [stderr] Compiling curl-sys v0.4.8 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Compiling socket2 v0.3.7 [INFO] [stderr] Checking aligned_alloc v0.1.3 [INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site' [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.13/src/unstable.rs:359:27 [INFO] [stderr] | [INFO] [stderr] 359 | Span::Nightly(proc_macro::Span::def_site()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: for more information, see https://github.com/rust-lang/rust/issues/54724 [INFO] [stderr] = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0658`. [INFO] [stderr] error: Could not compile `proc-macro2`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "5bbe74e445ed9a26a75290487e96a19eb2fda9c6961d4ad845c0fb768beb99aa"` [INFO] running `"docker" "rm" "-f" "5bbe74e445ed9a26a75290487e96a19eb2fda9c6961d4ad845c0fb768beb99aa"` [INFO] [stdout] 5bbe74e445ed9a26a75290487e96a19eb2fda9c6961d4ad845c0fb768beb99aa