[INFO] fetching crate static_args 0.2.1...
[INFO] checking static_args-0.2.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate static_args 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate static_args 0.2.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate static_args 0.2.1
[INFO] finished tweaking crates.io crate static_args 0.2.1
[INFO] tweaked toml for crates.io crate static_args 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate static_args 0.2.1 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3d6703dac5ba582102b16ba52ccfa45944345c6638bc6d32a0c62b1be2f29ad
[INFO] running `Command { std: "docker" "start" "-a" "c3d6703dac5ba582102b16ba52ccfa45944345c6638bc6d32a0c62b1be2f29ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d6703dac5ba582102b16ba52ccfa45944345c6638bc6d32a0c62b1be2f29ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d6703dac5ba582102b16ba52ccfa45944345c6638bc6d32a0c62b1be2f29ad", kill_on_drop: false }`
[INFO] [stdout] c3d6703dac5ba582102b16ba52ccfa45944345c6638bc6d32a0c62b1be2f29ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b92fb5fe13a6f2d00e81f51623a7f1f917be7944dab0bf7cab8c8516926b455a
[INFO] running `Command { std: "docker" "start" "-a" "b92fb5fe13a6f2d00e81f51623a7f1f917be7944dab0bf7cab8c8516926b455a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking static_args v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `static_args` (lib) due to 2 previous errors
[INFO] [stdout] error[E0658]: use of unstable library feature 'unchecked_math': niche optimization path
[INFO] [stdout]   --> src/unix.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |             (self.end as usize).unchecked_sub(self.next as usize)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #85122 <https://github.com/rust-lang/rust/issues/85122> for more information
[INFO] [stdout]    = help: add `#![feature(unchecked_math)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] [stdout] error[E0658]: use of unstable library feature 'unchecked_math': niche optimization path
[INFO] [stdout]   --> src/unix.rs:71:33
[INFO] [stdout]    |
[INFO] [stdout] 71 |             (self.end as usize).unchecked_sub(self.next as usize)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #85122 <https://github.com/rust-lang/rust/issues/85122> for more information
[INFO] [stdout]    = help: add `#![feature(unchecked_math)]` 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 `static_args` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b92fb5fe13a6f2d00e81f51623a7f1f917be7944dab0bf7cab8c8516926b455a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92fb5fe13a6f2d00e81f51623a7f1f917be7944dab0bf7cab8c8516926b455a", kill_on_drop: false }`
[INFO] [stdout] b92fb5fe13a6f2d00e81f51623a7f1f917be7944dab0bf7cab8c8516926b455a
