[INFO] fetching crate flexible-io 0.1.0...
[INFO] testing flexible-io-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate flexible-io 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate flexible-io 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate flexible-io 0.1.0
[INFO] finished tweaking crates.io crate flexible-io 0.1.0
[INFO] tweaked toml for crates.io crate flexible-io 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af50591e70724cb426a8d0635223cee5758667c95238794de924fda6aabf105c
[INFO] running `Command { std: "docker" "start" "-a" "af50591e70724cb426a8d0635223cee5758667c95238794de924fda6aabf105c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af50591e70724cb426a8d0635223cee5758667c95238794de924fda6aabf105c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af50591e70724cb426a8d0635223cee5758667c95238794de924fda6aabf105c", kill_on_drop: false }`
[INFO] [stdout] af50591e70724cb426a8d0635223cee5758667c95238794de924fda6aabf105c
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8786d418ebcdb69d70d157ecb2f2a0c68609d6f6a0e1de86c6bf1c0997d7483f
[INFO] running `Command { std: "docker" "start" "-a" "8786d418ebcdb69d70d157ecb2f2a0c68609d6f6a0e1de86c6bf1c0997d7483f", kill_on_drop: false }`
[INFO] [stderr]    Compiling flexible-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(set_ptr_value)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flexible-io` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8786d418ebcdb69d70d157ecb2f2a0c68609d6f6a0e1de86c6bf1c0997d7483f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8786d418ebcdb69d70d157ecb2f2a0c68609d6f6a0e1de86c6bf1c0997d7483f", kill_on_drop: false }`
[INFO] [stdout] 8786d418ebcdb69d70d157ecb2f2a0c68609d6f6a0e1de86c6bf1c0997d7483f
[INFO] testing flexible-io-0.1.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate flexible-io 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate flexible-io 0.1.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate flexible-io 0.1.0
[INFO] finished tweaking crates.io crate flexible-io 0.1.0
[INFO] tweaked toml for crates.io crate flexible-io 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 388ed83487da0fb6e1305f54715e9eb4eb2b68ddee705b23f3836d1c4fb10c9a
[INFO] running `Command { std: "docker" "start" "-a" "388ed83487da0fb6e1305f54715e9eb4eb2b68ddee705b23f3836d1c4fb10c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "388ed83487da0fb6e1305f54715e9eb4eb2b68ddee705b23f3836d1c4fb10c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388ed83487da0fb6e1305f54715e9eb4eb2b68ddee705b23f3836d1c4fb10c9a", kill_on_drop: false }`
[INFO] [stdout] 388ed83487da0fb6e1305f54715e9eb4eb2b68ddee705b23f3836d1c4fb10c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dd24023c312f8bbe7a0a23ef8946ff8dbccc71242cf26e8836e63323554e361
[INFO] running `Command { std: "docker" "start" "-a" "7dd24023c312f8bbe7a0a23ef8946ff8dbccc71242cf26e8836e63323554e361", kill_on_drop: false }`
[INFO] [stderr]    Compiling flexible-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(set_ptr_value)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flexible-io` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7dd24023c312f8bbe7a0a23ef8946ff8dbccc71242cf26e8836e63323554e361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd24023c312f8bbe7a0a23ef8946ff8dbccc71242cf26e8836e63323554e361", kill_on_drop: false }`
[INFO] [stdout] 7dd24023c312f8bbe7a0a23ef8946ff8dbccc71242cf26e8836e63323554e361
