[INFO] fetching crate rail-lang 0.30.2...
[INFO] checking rail-lang-0.30.2 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate rail-lang 0.30.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rail-lang 0.30.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rail-lang 0.30.2
[INFO] finished tweaking crates.io crate rail-lang 0.30.2
[INFO] tweaked toml for crates.io crate rail-lang 0.30.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate rail-lang 0.30.2 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" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d934afc959549a8ed6ef979e02b89f92e698e87d3ff93299f3750133e6dcea68
[INFO] running `Command { std: "docker" "start" "-a" "d934afc959549a8ed6ef979e02b89f92e698e87d3ff93299f3750133e6dcea68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d934afc959549a8ed6ef979e02b89f92e698e87d3ff93299f3750133e6dcea68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d934afc959549a8ed6ef979e02b89f92e698e87d3ff93299f3750133e6dcea68", kill_on_drop: false }`
[INFO] [stdout] d934afc959549a8ed6ef979e02b89f92e698e87d3ff93299f3750133e6dcea68
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2b9b3998df32061b23269349889960ae216ec52e0e68d7078cc06d6f1707c48
[INFO] running `Command { std: "docker" "start" "-a" "b2b9b3998df32061b23269349889960ae216ec52e0e68d7078cc06d6f1707c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking io-lifetimes v1.0.10
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]     Checking which v4.4.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking phf v0.11.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rail-lang v0.30.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b2b9b3998df32061b23269349889960ae216ec52e0e68d7078cc06d6f1707c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b9b3998df32061b23269349889960ae216ec52e0e68d7078cc06d6f1707c48", kill_on_drop: false }`
[INFO] [stdout] b2b9b3998df32061b23269349889960ae216ec52e0e68d7078cc06d6f1707c48
[INFO] checking rail-lang-0.30.2 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate rail-lang 0.30.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rail-lang 0.30.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rail-lang 0.30.2
[INFO] finished tweaking crates.io crate rail-lang 0.30.2
[INFO] tweaked toml for crates.io crate rail-lang 0.30.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate rail-lang 0.30.2 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" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39ff3c5a15207bdef9837a6bd5cbeaf4f973b327a2e13bdafcf433bf4eb0a47a
[INFO] running `Command { std: "docker" "start" "-a" "39ff3c5a15207bdef9837a6bd5cbeaf4f973b327a2e13bdafcf433bf4eb0a47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39ff3c5a15207bdef9837a6bd5cbeaf4f973b327a2e13bdafcf433bf4eb0a47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ff3c5a15207bdef9837a6bd5cbeaf4f973b327a2e13bdafcf433bf4eb0a47a", kill_on_drop: false }`
[INFO] [stdout] 39ff3c5a15207bdef9837a6bd5cbeaf4f973b327a2e13bdafcf433bf4eb0a47a
[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=forbid -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 3dfcb7e334eed5f796275437d400c1b9d9e20f7670917b37d49b554b86c97032
[INFO] running `Command { std: "docker" "start" "-a" "3dfcb7e334eed5f796275437d400c1b9d9e20f7670917b37d49b554b86c97032", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking io-lifetimes v1.0.10
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking which v4.4.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking phf v0.11.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rail-lang v0.30.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3dfcb7e334eed5f796275437d400c1b9d9e20f7670917b37d49b554b86c97032", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dfcb7e334eed5f796275437d400c1b9d9e20f7670917b37d49b554b86c97032", kill_on_drop: false }`
[INFO] [stdout] 3dfcb7e334eed5f796275437d400c1b9d9e20f7670917b37d49b554b86c97032
