[INFO] fetching crate iso-macro 0.0.5...
[INFO] testing iso-macro-0.0.5 against 1.75.0 for beta-1.76-1
[INFO] extracting crate iso-macro 0.0.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate iso-macro 0.0.5 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iso-macro 0.0.5
[INFO] finished tweaking crates.io crate iso-macro 0.0.5
[INFO] tweaked toml for crates.io crate iso-macro 0.0.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c0f5b17f5f0b623f65f2746de5e5da703a338fe6682627c3f9b86c85c1d8769
[INFO] running `Command { std: "docker" "start" "-a" "4c0f5b17f5f0b623f65f2746de5e5da703a338fe6682627c3f9b86c85c1d8769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c0f5b17f5f0b623f65f2746de5e5da703a338fe6682627c3f9b86c85c1d8769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c0f5b17f5f0b623f65f2746de5e5da703a338fe6682627c3f9b86c85c1d8769", kill_on_drop: false }`
[INFO] [stdout] 4c0f5b17f5f0b623f65f2746de5e5da703a338fe6682627c3f9b86c85c1d8769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e82ed0dba404cfbccddd14f5a0f9da73fb0fe13ed9a4a59a351aa209c75de34f
[INFO] running `Command { std: "docker" "start" "-a" "e82ed0dba404cfbccddd14f5a0f9da73fb0fe13ed9a4a59a351aa209c75de34f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling iso-macro v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iso-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e82ed0dba404cfbccddd14f5a0f9da73fb0fe13ed9a4a59a351aa209c75de34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e82ed0dba404cfbccddd14f5a0f9da73fb0fe13ed9a4a59a351aa209c75de34f", kill_on_drop: false }`
[INFO] [stdout] e82ed0dba404cfbccddd14f5a0f9da73fb0fe13ed9a4a59a351aa209c75de34f
[INFO] testing iso-macro-0.0.5 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate iso-macro 0.0.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate iso-macro 0.0.5 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iso-macro 0.0.5
[INFO] finished tweaking crates.io crate iso-macro 0.0.5
[INFO] tweaked toml for crates.io crate iso-macro 0.0.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a019bad1342ace78f0ecc33d16cc9919844740644964541bb241ca2dbbdbd33a
[INFO] running `Command { std: "docker" "start" "-a" "a019bad1342ace78f0ecc33d16cc9919844740644964541bb241ca2dbbdbd33a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a019bad1342ace78f0ecc33d16cc9919844740644964541bb241ca2dbbdbd33a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a019bad1342ace78f0ecc33d16cc9919844740644964541bb241ca2dbbdbd33a", kill_on_drop: false }`
[INFO] [stdout] a019bad1342ace78f0ecc33d16cc9919844740644964541bb241ca2dbbdbd33a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b78339e1f7a02c6f9eb1a080ec7d452099c98b2bc26e019af1b1b36dd6745ab
[INFO] running `Command { std: "docker" "start" "-a" "3b78339e1f7a02c6f9eb1a080ec7d452099c98b2bc26e019af1b1b36dd6745ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling iso-macro v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | #![feature(proc_macro_diagnostic)]
[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 `iso-macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3b78339e1f7a02c6f9eb1a080ec7d452099c98b2bc26e019af1b1b36dd6745ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b78339e1f7a02c6f9eb1a080ec7d452099c98b2bc26e019af1b1b36dd6745ab", kill_on_drop: false }`
[INFO] [stdout] 3b78339e1f7a02c6f9eb1a080ec7d452099c98b2bc26e019af1b1b36dd6745ab
