[INFO] fetching crate i-o 0.4.7...
[INFO] testing i-o-0.4.7 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate i-o 0.4.7 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate i-o 0.4.7
[INFO] finished tweaking crates.io crate i-o 0.4.7
[INFO] tweaked toml for crates.io crate i-o 0.4.7 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate i-o 0.4.7 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages to highest compatible versions
[INFO] [stderr]       Adding quickcheck v0.7.2 (available: v1.1.0)
[INFO] [stderr]       Adding quickcheck_macros v0.7.0 (available: v1.2.0)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.10.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `i-o` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.7.0
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded quickcheck v0.7.2
[INFO] [stderr]   Downloaded rand_core v0.2.3
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded fallible v0.1.3
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded abort v0.1.3
[INFO] [stderr]   Downloaded ptr v0.2.3
[INFO] [stderr]   Downloaded hash-table v0.2.5
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded unreachable v1.0.0
[INFO] [stderr]   Downloaded siphasher v0.2.3
[INFO] [stderr]   Downloaded loca v0.7.4
[INFO] [stderr]   Downloaded containers v0.9.13
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d
[INFO] running `Command { std: "docker" "start" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `i-o` (manifest) generated 1 warning
[INFO] [stderr]    Compiling ptr v0.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling hash-table v0.2.5
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling containers v0.9.13
[INFO] [stderr]    Compiling i-o v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling either v1.19.0
[INFO] [stderr]    Compiling rel v0.2.0
[INFO] [stderr]    Compiling fallible v0.1.3
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling abort v0.1.3
[INFO] [stderr]    Compiling heap v0.1.0
[INFO] [stderr] error: cannot set `RUSTC_BOOTSTRAP=1` from build script of `i-o v0.4.7 (/opt/rustwide/workdir)`.
[INFO] [stderr] note: crates cannot set `RUSTC_BOOTSTRAP` themselves, as doing so would subvert the stability guarantees of Rust for your project.
[INFO] [stderr] help: If you're sure you want to do this in your project, set the environment variable `RUSTC_BOOTSTRAP=io` before running cargo instead.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ptr-0.2.3/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(coerce_unsized)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hash-table-0.2.5/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_ref)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since `1.53.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ptr` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hash-table` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d", kill_on_drop: false }`
[INFO] [stdout] 554a1da10d695b1d0fdc7f3f71c8215bc3958b92585fd45198d59feb942fab4d
