[INFO] cloning repository https://github.com/whx828/rjlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whx828/rjlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhx828%2Frjlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhx828%2Frjlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e6d6a24fa51d02e358dd1ba120b8c2803c5a0f73
[INFO] checking whx828/rjlox/e6d6a24fa51d02e358dd1ba120b8c2803c5a0f73 against master#6f34f4ee074ce0affc7bbf4e2c835f66cd576f13 for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhx828%2Frjlox" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/whx828/rjlox
[INFO] finished tweaking git repo https://github.com/whx828/rjlox
[INFO] tweaked toml for git repo https://github.com/whx828/rjlox written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/whx828/rjlox on toolchain 6f34f4ee074ce0affc7bbf4e2c835f66cd576f13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6f34f4ee074ce0affc7bbf4e2c835f66cd576f13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/whx828/rjlox 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" "+6f34f4ee074ce0affc7bbf4e2c835f66cd576f13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.90
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.90
[INFO] [stderr]   Downloaded cxx-build v1.0.90
[INFO] [stderr]   Downloaded cxx v1.0.90
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+6f34f4ee074ce0affc7bbf4e2c835f66cd576f13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84fedf1232660bbb67cf50c2b0f238aed2057a5be899805cf5933b495ec8450f
[INFO] running `Command { std: "docker" "start" "-a" "84fedf1232660bbb67cf50c2b0f238aed2057a5be899805cf5933b495ec8450f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84fedf1232660bbb67cf50c2b0f238aed2057a5be899805cf5933b495ec8450f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84fedf1232660bbb67cf50c2b0f238aed2057a5be899805cf5933b495ec8450f", kill_on_drop: false }`
[INFO] [stdout] 84fedf1232660bbb67cf50c2b0f238aed2057a5be899805cf5933b495ec8450f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+6f34f4ee074ce0affc7bbf4e2c835f66cd576f13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 591148ed2e69ac40872d42516827f249af0287d3352812dcaff11c046f6e0006
[INFO] running `Command { std: "docker" "start" "-a" "591148ed2e69ac40872d42516827f249af0287d3352812dcaff11c046f6e0006", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]     Checking clap_lex v0.3.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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" "591148ed2e69ac40872d42516827f249af0287d3352812dcaff11c046f6e0006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591148ed2e69ac40872d42516827f249af0287d3352812dcaff11c046f6e0006", kill_on_drop: false }`
[INFO] [stdout] 591148ed2e69ac40872d42516827f249af0287d3352812dcaff11c046f6e0006