[INFO] fetching crate unix-signal 0.1.4...
[INFO] testing unix-signal-0.1.4 against 1.90.0 for beta-1.91-3
[INFO] extracting crate unix-signal 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate unix-signal 0.1.4
[INFO] finished tweaking crates.io crate unix-signal 0.1.4
[INFO] tweaked toml for crates.io crate unix-signal 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unix-signal 0.1.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byte-strings-proc_macros v0.2.2
[INFO] [stderr]   Downloaded utf v0.1.6
[INFO] [stderr]   Downloaded idem v0.1.1
[INFO] [stderr]   Downloaded system-call v0.1.3
[INFO] [stderr]   Downloaded abort v0.1.3
[INFO] [stderr]   Downloaded ptr v0.2.3
[INFO] [stderr]   Downloaded i-o v0.4.7
[INFO] [stderr]   Downloaded containers v0.9.13
[INFO] [stderr]   Downloaded flags v0.1.5
[INFO] [stderr]   Downloaded loca v0.7.4
[INFO] [stderr]   Downloaded unix v0.6.12
[INFO] [stderr]   Downloaded libc-interface v0.1.2
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded hash-table v0.2.5
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded null-terminated v0.3.17
[INFO] [stderr]   Downloaded idem v0.4.0
[INFO] [stderr]   Downloaded tempus v0.2.4
[INFO] [stderr]   Downloaded fallible v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e15b0b93c8e27e1e9bfda08a80e5fb4227ce59be1e2b8e95e68244abd6891577
[INFO] running `Command { std: "docker" "start" "-a" "e15b0b93c8e27e1e9bfda08a80e5fb4227ce59be1e2b8e95e68244abd6891577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e15b0b93c8e27e1e9bfda08a80e5fb4227ce59be1e2b8e95e68244abd6891577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e15b0b93c8e27e1e9bfda08a80e5fb4227ce59be1e2b8e95e68244abd6891577", kill_on_drop: false }`
[INFO] [stdout] e15b0b93c8e27e1e9bfda08a80e5fb4227ce59be1e2b8e95e68244abd6891577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a8bd4284118e3fbd8ccaa340dbdbb5f59d112f5526a84b57de52d335f81b78a
[INFO] running `Command { std: "docker" "start" "-a" "7a8bd4284118e3fbd8ccaa340dbdbb5f59d112f5526a84b57de52d335f81b78a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[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 idem v0.4.0
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]    Compiling rel v0.2.0
[INFO] [stderr]    Compiling heap v0.1.0
[INFO] [stderr]    Compiling abort v0.1.3
[INFO] [stderr]    Compiling utf v0.1.6
[INFO] [stderr]    Compiling libc-interface v0.1.2
[INFO] [stderr]    Compiling unix v0.6.12
[INFO] [stderr]    Compiling byte-strings-proc_macros v0.2.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling fallible v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr] error: Cannot set `RUSTC_BOOTSTRAP=1` from build script of `i-o v0.4.7`.
[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 stable 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] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hash-table-0.2.5/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[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] error[E0554]: `#![feature]` may not be used on the stable 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 stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ptr-0.2.3/src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(unsize)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[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 2 previous errors
[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 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7a8bd4284118e3fbd8ccaa340dbdbb5f59d112f5526a84b57de52d335f81b78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a8bd4284118e3fbd8ccaa340dbdbb5f59d112f5526a84b57de52d335f81b78a", kill_on_drop: false }`
[INFO] [stdout] 7a8bd4284118e3fbd8ccaa340dbdbb5f59d112f5526a84b57de52d335f81b78a