[INFO] fetching crate seam 0.4.3...
[INFO] checking seam-0.4.3 against 1.95.0 for pr-155915
[INFO] extracting crate seam 0.4.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate seam 0.4.3
[INFO] finished tweaking crates.io crate seam 0.4.3
[INFO] tweaked toml for crates.io crate seam 0.4.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate seam 0.4.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate seam 0.4.3 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.2.1
[INFO] [stderr]   Downloaded descape v2.0.3
[INFO] [stderr]   Downloaded formatx v0.2.2
[INFO] [stderr]   Downloaded seam_argparse_proc_macro v0.1.1
[INFO] [stderr]   Downloaded yaml-rust2 v0.9.0
[INFO] [stderr]   Downloaded bytemuck v1.20.0
[INFO] [stderr]   Downloaded cc v1.2.1
[INFO] [stderr]   Downloaded syn v2.0.89
[INFO] [stderr]   Downloaded fixed v1.28.0
[INFO] [stderr]   Downloaded libc v0.2.166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a529544ad319602944a9044243cbca520297f33b73d9c045f2e44b9b5b87ed63
[INFO] running `Command { std: "docker" "start" "-a" "a529544ad319602944a9044243cbca520297f33b73d9c045f2e44b9b5b87ed63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a529544ad319602944a9044243cbca520297f33b73d9c045f2e44b9b5b87ed63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a529544ad319602944a9044243cbca520297f33b73d9c045f2e44b9b5b87ed63", kill_on_drop: false }`
[INFO] [stdout] a529544ad319602944a9044243cbca520297f33b73d9c045f2e44b9b5b87ed63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c64d65171316febc466a6917abeae6c3c38efcf8e507665447f9d8c93d86fdea
[INFO] running `Command { std: "docker" "start" "-a" "c64d65171316febc466a6917abeae6c3c38efcf8e507665447f9d8c93d86fdea", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking winnow v0.6.20
[INFO] [stderr]    Compiling fixed v1.28.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking hashlink v0.9.1
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking unicode-id v0.3.5
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking bytemuck v1.20.0
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking markdown v1.0.0-alpha.21
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking yaml-rust2 v0.9.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking formatx v0.2.2
[INFO] [stderr]     Checking descape v2.0.3
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]    Compiling seam_argparse_proc_macro v0.1.1
[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/seam_argparse_proc_macro-0.1.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(proc_macro_span)]
[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 `seam_argparse_proc_macro` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c64d65171316febc466a6917abeae6c3c38efcf8e507665447f9d8c93d86fdea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64d65171316febc466a6917abeae6c3c38efcf8e507665447f9d8c93d86fdea", kill_on_drop: false }`
[INFO] [stdout] c64d65171316febc466a6917abeae6c3c38efcf8e507665447f9d8c93d86fdea
