[INFO] fetching crate rust_hero 0.5.2...
[INFO] testing rust_hero-0.5.2 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate rust_hero 0.5.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rust_hero 0.5.2
[INFO] finished tweaking crates.io crate rust_hero 0.5.2
[INFO] tweaked toml for crates.io crate rust_hero 0.5.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_hero 0.5.2 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_hero 0.5.2 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded torch-sys v0.8.0
[INFO] [stderr]   Downloaded openssl v0.10.42
[INFO] [stderr]   Downloaded zip-extensions v0.6.1
[INFO] [stderr]   Downloaded insta v1.21.0
[INFO] [stderr]   Downloaded tree-sitter v0.20.9
[INFO] [stderr]   Downloaded indicatif v0.16.2
[INFO] [stderr]   Downloaded tch v0.8.0
[INFO] [stderr]   Downloaded cached-path v0.5.3
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded similar v2.2.0
[INFO] [stderr]   Downloaded libgit2-sys v0.14.0+1.5.0
[INFO] [stderr]   Downloaded os_str_bytes v6.3.1
[INFO] [stderr]   Downloaded indicatif v0.17.1
[INFO] [stderr]   Downloaded ordered-float v3.3.0
[INFO] [stderr]   Downloaded filetime v0.2.18
[INFO] [stderr]   Downloaded time v0.3.16
[INFO] [stderr]   Downloaded rust_tokenizers v7.0.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded openssl-sys v0.9.77
[INFO] [stderr]   Downloaded rust-bert v0.19.0
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded uuid v1.2.1
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded time-macros v0.2.5
[INFO] [stderr]   Downloaded unicode-normalization-alignments v0.1.12
[INFO] [stderr]   Downloaded reqwest v0.11.12
[INFO] [stderr]   Downloaded curl-sys v0.4.58+curl-7.86.0
[INFO] [stderr]   Downloaded bump_alloc v0.1.0
[INFO] [stderr]   Downloaded git2 v0.15.0
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2697841471a445b09c7b2b4300ab12c9c83535e803f401554997b16caf821e3e
[INFO] running `Command { std: "docker" "start" "-a" "2697841471a445b09c7b2b4300ab12c9c83535e803f401554997b16caf821e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2697841471a445b09c7b2b4300ab12c9c83535e803f401554997b16caf821e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2697841471a445b09c7b2b4300ab12c9c83535e803f401554997b16caf821e3e", kill_on_drop: false }`
[INFO] [stdout] 2697841471a445b09c7b2b4300ab12c9c83535e803f401554997b16caf821e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c142906f2e8c896d601a881b31a8e2f1b99dbf50b04c490d36dd0e30097e1d9b
[INFO] running `Command { std: "docker" "start" "-a" "c142906f2e8c896d601a881b31a8e2f1b99dbf50b04c490d36dd0e30097e1d9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[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" "c142906f2e8c896d601a881b31a8e2f1b99dbf50b04c490d36dd0e30097e1d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c142906f2e8c896d601a881b31a8e2f1b99dbf50b04c490d36dd0e30097e1d9b", kill_on_drop: false }`
[INFO] [stdout] c142906f2e8c896d601a881b31a8e2f1b99dbf50b04c490d36dd0e30097e1d9b