[INFO] fetching crate ame2020 0.1.1...
[INFO] checking ame2020-0.1.1 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate ame2020 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ame2020 0.1.1 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ame2020 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ame2020 0.1.1
[INFO] tweaked toml for crates.io crate ame2020 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate ame2020 0.1.1 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" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.37
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded thiserror v1.0.37
[INFO] [stderr]   Downloaded heck v0.4.0
[INFO] [stderr]   Downloaded derive_arbitrary v1.2.0
[INFO] [stderr]   Downloaded arbitrary v1.2.0
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded arrayvec v0.7.2
[INFO] [stderr]   Downloaded os_str_bytes v6.4.0
[INFO] [stderr]   Downloaded once_cell v1.16.0
[INFO] [stderr]   Downloaded clap_derive v4.0.21
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded clap_lex v0.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.47
[INFO] [stderr]   Downloaded clap v4.0.22
[INFO] [stderr]   Downloaded termcolor v1.1.3
[INFO] [stderr]   Downloaded syn v1.0.103
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b89d40149a0f96b9e0947c2abcfe99ac4fc14591a245927a6430135a310687
[INFO] running `Command { std: "docker" "start" "-a" "e7b89d40149a0f96b9e0947c2abcfe99ac4fc14591a245927a6430135a310687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b89d40149a0f96b9e0947c2abcfe99ac4fc14591a245927a6430135a310687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b89d40149a0f96b9e0947c2abcfe99ac4fc14591a245927a6430135a310687", kill_on_drop: false }`
[INFO] [stdout] e7b89d40149a0f96b9e0947c2abcfe99ac4fc14591a245927a6430135a310687
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20c2285eb9b9fb6b9fdeaf2de732067dc5decb773c996b9284b4147031c0efe
[INFO] running `Command { std: "docker" "start" "-a" "a20c2285eb9b9fb6b9fdeaf2de732067dc5decb773c996b9284b4147031c0efe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.4.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a20c2285eb9b9fb6b9fdeaf2de732067dc5decb773c996b9284b4147031c0efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20c2285eb9b9fb6b9fdeaf2de732067dc5decb773c996b9284b4147031c0efe", kill_on_drop: false }`
[INFO] [stdout] a20c2285eb9b9fb6b9fdeaf2de732067dc5decb773c996b9284b4147031c0efe
