[INFO] fetching crate nix-melt 0.1.2...
[INFO] checking nix-melt-0.1.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate nix-melt 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate nix-melt 0.1.2 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nix-melt 0.1.2
[INFO] finished tweaking crates.io crate nix-melt 0.1.2
[INFO] tweaked toml for crates.io crate nix-melt 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate nix-melt 0.1.2 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parse-display v0.8.0
[INFO] [stderr]   Downloaded structmeta v0.1.6
[INFO] [stderr]   Downloaded structmeta-derive v0.1.6
[INFO] [stderr]   Downloaded parse-display-derive v0.8.0
[INFO] [stderr]   Downloaded anstyle-wincon v1.0.0
[INFO] [stderr]   Downloaded clap_complete v4.2.1
[INFO] [stderr]   Downloaded serde_with_macros v2.3.2
[INFO] [stderr]   Downloaded anstream v0.3.0
[INFO] [stderr]   Downloaded clap_mangen v0.2.10
[INFO] [stderr]   Downloaded serde_with v2.3.2
[INFO] [stderr]   Downloaded ratatui v0.20.1
[INFO] [stderr]   Downloaded rustix v0.37.14
[INFO] [stderr]   Downloaded color-eyre v0.6.2
[INFO] [stderr]   Downloaded color-spantrace v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31aede2f6070cfc7f273bd3fc609747c727c95b2b8ecd4c151395a9b66a665db
[INFO] running `Command { std: "docker" "start" "-a" "31aede2f6070cfc7f273bd3fc609747c727c95b2b8ecd4c151395a9b66a665db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31aede2f6070cfc7f273bd3fc609747c727c95b2b8ecd4c151395a9b66a665db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31aede2f6070cfc7f273bd3fc609747c727c95b2b8ecd4c151395a9b66a665db", kill_on_drop: false }`
[INFO] [stdout] 31aede2f6070cfc7f273bd3fc609747c727c95b2b8ecd4c151395a9b66a665db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b46a537816a4eb16fd9fb4cad34aa1c216a30b9d9cc3330a454bd281549310da
[INFO] running `Command { std: "docker" "start" "-a" "b46a537816a4eb16fd9fb4cad34aa1c216a30b9d9cc3330a454bd281549310da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling rustix v0.37.14
[INFO] [stderr]    Compiling linux-raw-sys v0.3.4
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling clap_lex v0.4.1
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling roff v0.2.1
[INFO] [stderr]     Checking unicase v2.6.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[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]     Checking tracing v0.1.37
[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" "b46a537816a4eb16fd9fb4cad34aa1c216a30b9d9cc3330a454bd281549310da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b46a537816a4eb16fd9fb4cad34aa1c216a30b9d9cc3330a454bd281549310da", kill_on_drop: false }`
[INFO] [stdout] b46a537816a4eb16fd9fb4cad34aa1c216a30b9d9cc3330a454bd281549310da
