[INFO] cloning repository https://github.com/xl350r/Urltester-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xl350r/Urltester-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxl350r%2FUrltester-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxl350r%2FUrltester-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 787a22b1ba5fd16b7249af451335dffa054ecb71
[INFO] checking xl350r/Urltester-rs against master#03eb45452305f2d52348279d0caa5fc1f12c438d for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxl350r%2FUrltester-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xl350r/Urltester-rs on toolchain 03eb45452305f2d52348279d0caa5fc1f12c438d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xl350r/Urltester-rs
[INFO] finished tweaking git repo https://github.com/xl350r/Urltester-rs
[INFO] tweaked toml for git repo https://github.com/xl350r/Urltester-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xl350r/Urltester-rs 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" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10ed954e62d37296a0a46cbe2c9336fa545b8690507efb23b5b97a98ffb0e78d
[INFO] running `Command { std: "docker" "start" "-a" "10ed954e62d37296a0a46cbe2c9336fa545b8690507efb23b5b97a98ffb0e78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10ed954e62d37296a0a46cbe2c9336fa545b8690507efb23b5b97a98ffb0e78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ed954e62d37296a0a46cbe2c9336fa545b8690507efb23b5b97a98ffb0e78d", kill_on_drop: false }`
[INFO] [stdout] 10ed954e62d37296a0a46cbe2c9336fa545b8690507efb23b5b97a98ffb0e78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5548b255e0dd484f1f5d8f94d62073f751307d619cc2f6297b22c5bd976ac1cf
[INFO] running `Command { std: "docker" "start" "-a" "5548b255e0dd484f1f5d8f94d62073f751307d619cc2f6297b22c5bd976ac1cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.101
[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" "5548b255e0dd484f1f5d8f94d62073f751307d619cc2f6297b22c5bd976ac1cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5548b255e0dd484f1f5d8f94d62073f751307d619cc2f6297b22c5bd976ac1cf", kill_on_drop: false }`
[INFO] [stdout] 5548b255e0dd484f1f5d8f94d62073f751307d619cc2f6297b22c5bd976ac1cf