[INFO] cloning repository https://github.com/CN-Zxcv/learn_tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CN-Zxcv/learn_tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ce311d09667236ed53c4cb0ca32e2e9d9fedd5c
[INFO] checking CN-Zxcv/learn_tokio against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCN-Zxcv%2Flearn_tokio" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] finished tweaking git repo https://github.com/CN-Zxcv/learn_tokio
[INFO] tweaked toml for git repo https://github.com/CN-Zxcv/learn_tokio written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CN-Zxcv/learn_tokio on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CN-Zxcv/learn_tokio 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 tokio-bincode v0.1.0
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded anstyle v1.0.0
[INFO] [stderr]   Downloaded clap v4.3.0
[INFO] [stderr]   Downloaded mini-redis v0.4.1
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[INFO] [stderr]   Downloaded rustix v0.37.19
[INFO] [stderr]   Downloaded web-sys v0.3.63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aabe1a3688eaf749eb587517aca3435d945c2b9a9e95011fd66c5b1922c22cd3
[INFO] running `Command { std: "docker" "start" "-a" "aabe1a3688eaf749eb587517aca3435d945c2b9a9e95011fd66c5b1922c22cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aabe1a3688eaf749eb587517aca3435d945c2b9a9e95011fd66c5b1922c22cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aabe1a3688eaf749eb587517aca3435d945c2b9a9e95011fd66c5b1922c22cd3", kill_on_drop: false }`
[INFO] [stdout] aabe1a3688eaf749eb587517aca3435d945c2b9a9e95011fd66c5b1922c22cd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f448c40f5b8e4cc689ddc6b7edafb75ab8614afa02143d7a1f4007ad959e2e
[INFO] running `Command { std: "docker" "start" "-a" "68f448c40f5b8e4cc689ddc6b7edafb75ab8614afa02143d7a1f4007ad959e2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking either v1.8.1
[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] 
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking anstyle v1.0.0
[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" "68f448c40f5b8e4cc689ddc6b7edafb75ab8614afa02143d7a1f4007ad959e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f448c40f5b8e4cc689ddc6b7edafb75ab8614afa02143d7a1f4007ad959e2e", kill_on_drop: false }`
[INFO] [stdout] 68f448c40f5b8e4cc689ddc6b7edafb75ab8614afa02143d7a1f4007ad959e2e
