[INFO] cloning repository https://github.com/emk/neural-network-toys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emk/neural-network-toys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Fneural-network-toys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Fneural-network-toys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f26e6f689588f2809502c7f395b5e81c60b396f
[INFO] checking emk/neural-network-toys against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femk%2Fneural-network-toys" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emk/neural-network-toys
[INFO] finished tweaking git repo https://github.com/emk/neural-network-toys
[INFO] tweaked toml for git repo https://github.com/emk/neural-network-toys written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emk/neural-network-toys on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emk/neural-network-toys 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded font-kit v0.11.0
[INFO] [stderr]   Downloaded human_format v1.0.3
[INFO] [stderr]   Downloaded anstyle-wincon v0.2.0
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded pbr v1.1.1
[INFO] [stderr]   Downloaded concolor-override v1.0.0
[INFO] [stderr]   Downloaded mnist v0.5.0
[INFO] [stderr]   Downloaded clap_lex v0.4.1
[INFO] [stderr]   Downloaded anstyle v0.3.5
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded freetype v0.7.0
[INFO] [stderr]   Downloaded concolor-query v0.3.3
[INFO] [stderr]   Downloaded ctrlc v3.2.5
[INFO] [stderr]   Downloaded anstyle-parse v0.1.1
[INFO] [stderr]   Downloaded anstream v0.2.6
[INFO] [stderr]   Downloaded clap_derive v4.2.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.85
[INFO] [stderr]   Downloaded clap v4.2.1
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded clap_builder v4.2.1
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded csv v1.2.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded curl-sys v0.4.61+curl-8.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9863aac8a4f877dc02e1f859789f3b305cc97ac78e3e92bc6eafe6778d145110
[INFO] running `Command { std: "docker" "start" "-a" "9863aac8a4f877dc02e1f859789f3b305cc97ac78e3e92bc6eafe6778d145110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9863aac8a4f877dc02e1f859789f3b305cc97ac78e3e92bc6eafe6778d145110", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9863aac8a4f877dc02e1f859789f3b305cc97ac78e3e92bc6eafe6778d145110", kill_on_drop: false }`
[INFO] [stdout] 9863aac8a4f877dc02e1f859789f3b305cc97ac78e3e92bc6eafe6778d145110
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c72a3ffd930eaa6a6060ef5645fca6fb271be84ecd064bf312a12a60ca93e7
[INFO] running `Command { std: "docker" "start" "-a" "c4c72a3ffd930eaa6a6060ef5645fca6fb271be84ecd064bf312a12a60ca93e7", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-gnu.rustflags
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[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" "c4c72a3ffd930eaa6a6060ef5645fca6fb271be84ecd064bf312a12a60ca93e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c72a3ffd930eaa6a6060ef5645fca6fb271be84ecd064bf312a12a60ca93e7", kill_on_drop: false }`
[INFO] [stdout] c4c72a3ffd930eaa6a6060ef5645fca6fb271be84ecd064bf312a12a60ca93e7
