[INFO] cloning repository https://github.com/aamosljp/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aamosljp/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faamosljp%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faamosljp%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cd708d0260803cd242cd265184a6ef9cbd788ae
[INFO] checking aamosljp/pngme against try#86f78589b09557f70c9db3f56ad1921e0a9f76ef for pr-138438
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faamosljp%2Fpngme" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aamosljp/pngme on toolchain 86f78589b09557f70c9db3f56ad1921e0a9f76ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+86f78589b09557f70c9db3f56ad1921e0a9f76ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aamosljp/pngme
[INFO] finished tweaking git repo https://github.com/aamosljp/pngme
[INFO] tweaked toml for git repo https://github.com/aamosljp/pngme written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/aamosljp/pngme 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" "+86f78589b09557f70c9db3f56ad1921e0a9f76ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+86f78589b09557f70c9db3f56ad1921e0a9f76ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dca488ee4e7a74a4d6e6a3e10a5460ce2c70152d22397766009073b8815c533
[INFO] running `Command { std: "docker" "start" "-a" "1dca488ee4e7a74a4d6e6a3e10a5460ce2c70152d22397766009073b8815c533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dca488ee4e7a74a4d6e6a3e10a5460ce2c70152d22397766009073b8815c533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dca488ee4e7a74a4d6e6a3e10a5460ce2c70152d22397766009073b8815c533", kill_on_drop: false }`
[INFO] [stdout] 1dca488ee4e7a74a4d6e6a3e10a5460ce2c70152d22397766009073b8815c533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+86f78589b09557f70c9db3f56ad1921e0a9f76ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9d3d7a2ac72a6e147e8a6be3c1203d5833b15c2f626184f594636ea94b648c
[INFO] running `Command { std: "docker" "start" "-a" "0c9d3d7a2ac72a6e147e8a6be3c1203d5833b15c2f626184f594636ea94b648c", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking crc-catalog v2.2.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking crc v3.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap_lex v0.3.2
[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" "0c9d3d7a2ac72a6e147e8a6be3c1203d5833b15c2f626184f594636ea94b648c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9d3d7a2ac72a6e147e8a6be3c1203d5833b15c2f626184f594636ea94b648c", kill_on_drop: false }`
[INFO] [stdout] 0c9d3d7a2ac72a6e147e8a6be3c1203d5833b15c2f626184f594636ea94b648c