[INFO] fetching crate k2v-client 0.0.4...
[INFO] checking k2v-client-0.0.4 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate k2v-client 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate k2v-client 0.0.4 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k2v-client 0.0.4
[INFO] finished tweaking crates.io crate k2v-client 0.0.4
[INFO] tweaked toml for crates.io crate k2v-client 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate k2v-client 0.0.4 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded format_table v0.1.1
[INFO] [stderr]   Downloaded tokio-rustls v0.24.0
[INFO] [stderr]   Downloaded aws-sigv4 v0.55.2
[INFO] [stderr]   Downloaded aws-smithy-http v0.55.2
[INFO] [stderr]   Downloaded aws-smithy-types v0.55.2
[INFO] [stderr]   Downloaded rustls v0.21.1
[INFO] [stderr]   Downloaded rustix v0.37.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 037dd02af5891fa3e9b333beb0c127b5e63d917aa5bd052b2528febf3d8c50bb
[INFO] running `Command { std: "docker" "start" "-a" "037dd02af5891fa3e9b333beb0c127b5e63d917aa5bd052b2528febf3d8c50bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "037dd02af5891fa3e9b333beb0c127b5e63d917aa5bd052b2528febf3d8c50bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037dd02af5891fa3e9b333beb0c127b5e63d917aa5bd052b2528febf3d8c50bb", kill_on_drop: false }`
[INFO] [stdout] 037dd02af5891fa3e9b333beb0c127b5e63d917aa5bd052b2528febf3d8c50bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63df9a68e473eaddb1312560ef1020e87fed94c53e392c4d6b965a8663e97263
[INFO] running `Command { std: "docker" "start" "-a" "63df9a68e473eaddb1312560ef1020e87fed94c53e392c4d6b965a8663e97263", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking 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-6f17d22bba15001f/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]    Compiling futures-task v0.3.28
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "63df9a68e473eaddb1312560ef1020e87fed94c53e392c4d6b965a8663e97263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63df9a68e473eaddb1312560ef1020e87fed94c53e392c4d6b965a8663e97263", kill_on_drop: false }`
[INFO] [stdout] 63df9a68e473eaddb1312560ef1020e87fed94c53e392c4d6b965a8663e97263
