[INFO] cloning repository https://github.com/chetanc97/rust-chat-app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chetanc97/rust-chat-app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchetanc97%2Frust-chat-app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchetanc97%2Frust-chat-app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7410f7688e10a6b07cc2fbc879e4b6260e70674d
[INFO] testing chetanc97/rust-chat-app/7410f7688e10a6b07cc2fbc879e4b6260e70674d against master#d933cf483edf1605142ac6899ff32536c0ad8b22 for pr-150933
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchetanc97%2Frust-chat-app" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/chetanc97/rust-chat-app
[INFO] finished tweaking git repo https://github.com/chetanc97/rust-chat-app
[INFO] tweaked toml for git repo https://github.com/chetanc97/rust-chat-app written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chetanc97/rust-chat-app on toolchain d933cf483edf1605142ac6899ff32536c0ad8b22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chetanc97/rust-chat-app 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" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ubyte v0.10.3
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] [stderr]   Downloaded tempfile v3.5.0
[INFO] [stderr]   Downloaded devise_codegen v0.4.1
[INFO] [stderr]   Downloaded pear_codegen v0.2.4
[INFO] [stderr]   Downloaded devise v0.4.1
[INFO] [stderr]   Downloaded devise_core v0.4.1
[INFO] [stderr]   Downloaded ref-cast v1.0.16
[INFO] [stderr]   Downloaded binascii v0.1.4
[INFO] [stderr]   Downloaded stable-pattern v0.1.0
[INFO] [stderr]   Downloaded atomic v0.5.1
[INFO] [stderr]   Downloaded inlinable_string v0.1.15
[INFO] [stderr]   Downloaded tokio-stream v0.1.12
[INFO] [stderr]   Downloaded bitflags v2.1.0
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[INFO] [stderr]   Downloaded rocket_http v0.5.0-rc.3
[INFO] [stderr]   Downloaded pear v0.2.4
[INFO] [stderr]   Downloaded rocket_codegen v0.5.0-rc.3
[INFO] [stderr]   Downloaded proc-macro2-diagnostics v0.10.0
[INFO] [stderr]   Downloaded h2 v0.3.17
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.16
[INFO] [stderr]   Downloaded hyper v0.14.26
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded rocket v0.5.0-rc.3
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89f9b61eda0a28bc528ecff877b471a51965fa31ca051e1b33619cfa6c864e94
[INFO] running `Command { std: "docker" "start" "-a" "89f9b61eda0a28bc528ecff877b471a51965fa31ca051e1b33619cfa6c864e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89f9b61eda0a28bc528ecff877b471a51965fa31ca051e1b33619cfa6c864e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f9b61eda0a28bc528ecff877b471a51965fa31ca051e1b33619cfa6c864e94", kill_on_drop: false }`
[INFO] [stdout] 89f9b61eda0a28bc528ecff877b471a51965fa31ca051e1b33619cfa6c864e94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+d933cf483edf1605142ac6899ff32536c0ad8b22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d38ad05ae7e7ebb27e27f8cc70b0f043a03f5ea5b6052816d6c1059e796fb54d
[INFO] running `Command { std: "docker" "start" "-a" "d38ad05ae7e7ebb27e27f8cc70b0f043a03f5ea5b6052816d6c1059e796fb54d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-core v0.3.28
[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 tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[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" "d38ad05ae7e7ebb27e27f8cc70b0f043a03f5ea5b6052816d6c1059e796fb54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38ad05ae7e7ebb27e27f8cc70b0f043a03f5ea5b6052816d6c1059e796fb54d", kill_on_drop: false }`
[INFO] [stdout] d38ad05ae7e7ebb27e27f8cc70b0f043a03f5ea5b6052816d6c1059e796fb54d