[INFO] updating cached repository GiantPanda0090/x86_64_RustOS
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GiantPanda0090/x86_64_RustOS
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GiantPanda0090/x86_64_RustOS" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/GiantPanda0090/x86_64_RustOS"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/GiantPanda0090/x86_64_RustOS'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  17% (32/187)   
Checking out files:  18% (34/187)   
Checking out files:  19% (36/187)   
Checking out files:  20% (38/187)   
Checking out files:  21% (40/187)   
Checking out files:  22% (42/187)   
Checking out files:  23% (44/187)   
Checking out files:  24% (45/187)   
Checking out files:  25% (47/187)   
Checking out files:  26% (49/187)   
Checking out files:  27% (51/187)   
Checking out files:  28% (53/187)   
Checking out files:  29% (55/187)   
Checking out files:  30% (57/187)   
Checking out files:  31% (58/187)   
Checking out files:  32% (60/187)   
Checking out files:  33% (62/187)   
Checking out files:  34% (64/187)   
Checking out files:  35% (66/187)   
Checking out files:  36% (68/187)   
Checking out files:  37% (70/187)   
Checking out files:  38% (72/187)   
Checking out files:  39% (73/187)   
Checking out files:  40% (75/187)   
Checking out files:  41% (77/187)   
Checking out files:  42% (79/187)   
Checking out files:  43% (81/187)   
Checking out files:  44% (83/187)   
Checking out files:  45% (85/187)   
Checking out files:  46% (87/187)   
Checking out files:  47% (88/187)   
Checking out files:  48% (90/187)   
Checking out files:  49% (92/187)   
Checking out files:  50% (94/187)   
Checking out files:  51% (96/187)   
Checking out files:  52% (98/187)   
Checking out files:  53% (100/187)   
Checking out files:  54% (101/187)   
Checking out files:  55% (103/187)   
Checking out files:  56% (105/187)   
Checking out files:  57% (107/187)   
Checking out files:  58% (109/187)   
Checking out files:  59% (111/187)   
Checking out files:  60% (113/187)   
Checking out files:  61% (115/187)   
Checking out files:  62% (116/187)   
Checking out files:  63% (118/187)   
Checking out files:  64% (120/187)   
Checking out files:  65% (122/187)   
Checking out files:  66% (124/187)   
Checking out files:  67% (126/187)   
Checking out files:  68% (128/187)   
Checking out files:  69% (130/187)   
Checking out files:  70% (131/187)   
Checking out files:  71% (133/187)   
Checking out files:  72% (135/187)   
Checking out files:  73% (137/187)   
Checking out files:  74% (139/187)   
Checking out files:  75% (141/187)   
Checking out files:  76% (143/187)   
Checking out files:  77% (144/187)   
Checking out files:  78% (146/187)   
Checking out files:  79% (148/187)   
Checking out files:  80% (150/187)   
Checking out files:  81% (152/187)   
Checking out files:  82% (154/187)   
Checking out files:  83% (156/187)   
Checking out files:  84% (158/187)   
Checking out files:  85% (159/187)   
Checking out files:  86% (161/187)   
Checking out files:  87% (163/187)   
Checking out files:  88% (165/187)   
Checking out files:  89% (167/187)   
Checking out files:  90% (169/187)   
Checking out files:  91% (171/187)   
Checking out files:  92% (173/187)   
Checking out files:  93% (174/187)   
Checking out files:  94% (176/187)   
Checking out files:  95% (178/187)   
Checking out files:  96% (180/187)   
Checking out files:  97% (182/187)   
Checking out files:  98% (184/187)   
Checking out files:  99% (186/187)   
Checking out files: 100% (187/187)   
Checking out files: 100% (187/187), done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GiantPanda0090/x86_64_RustOS" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/GiantPanda0090/x86_64_RustOS"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/GiantPanda0090/x86_64_RustOS'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae79d8c66a8033af2bff404a82c753023c01bb0d
[INFO] sha for GitHub repo GiantPanda0090/x86_64_RustOS: ae79d8c66a8033af2bff404a82c753023c01bb0d
[INFO] validating manifest of GiantPanda0090/x86_64_RustOS on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of GiantPanda0090/x86_64_RustOS on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing GiantPanda0090/x86_64_RustOS
[INFO] finished frobbing GiantPanda0090/x86_64_RustOS
[INFO] frobbed toml for GiantPanda0090/x86_64_RustOS written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/GiantPanda0090/x86_64_RustOS/Cargo.toml
[INFO] started frobbing GiantPanda0090/x86_64_RustOS
[INFO] finished frobbing GiantPanda0090/x86_64_RustOS
[INFO] frobbed toml for GiantPanda0090/x86_64_RustOS written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/GiantPanda0090/x86_64_RustOS/Cargo.toml
[INFO] crate GiantPanda0090/x86_64_RustOS already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking GiantPanda0090/x86_64_RustOS against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-1/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/GiantPanda0090/x86_64_RustOS:/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a3f4bc15edf7f2b1a55413c3e54e1cd9498571237515407e6d38238b46d70ef7
[INFO] running `"docker" "start" "-a" "a3f4bc15edf7f2b1a55413c3e54e1cd9498571237515407e6d38238b46d70ef7"`
[INFO] [stderr]     Checking spin v0.4.6
[INFO] [stderr] error[E0635]: unknown feature `const_unsafe_cell_new`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:53
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
[INFO] [stderr]   |                                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `const_atomic_usize_new`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.6/src/lib.rs:8:76
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))]
[INFO] [stderr]   |                                                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `spin`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a3f4bc15edf7f2b1a55413c3e54e1cd9498571237515407e6d38238b46d70ef7"`
[INFO] running `"docker" "rm" "-f" "a3f4bc15edf7f2b1a55413c3e54e1cd9498571237515407e6d38238b46d70ef7"`
[INFO] [stdout] a3f4bc15edf7f2b1a55413c3e54e1cd9498571237515407e6d38238b46d70ef7