[INFO] fetching crate posh-tabcomplete 0.1.4...
[INFO] checking posh-tabcomplete-0.1.4 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate posh-tabcomplete 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate posh-tabcomplete 0.1.4 on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate posh-tabcomplete 0.1.4
[INFO] finished tweaking crates.io crate posh-tabcomplete 0.1.4
[INFO] tweaked toml for crates.io crate posh-tabcomplete 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate posh-tabcomplete 0.1.4 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" "+377afada703be70d3fdff9164a481570a3cba7fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb2e58e085fc0e436cbe98a4fe87012799cae16ba9d54566af602583adbb6102
[INFO] running `Command { std: "docker" "start" "-a" "bb2e58e085fc0e436cbe98a4fe87012799cae16ba9d54566af602583adbb6102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb2e58e085fc0e436cbe98a4fe87012799cae16ba9d54566af602583adbb6102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb2e58e085fc0e436cbe98a4fe87012799cae16ba9d54566af602583adbb6102", kill_on_drop: false }`
[INFO] [stdout] bb2e58e085fc0e436cbe98a4fe87012799cae16ba9d54566af602583adbb6102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20a5fae92865ae154e13b88443406c71ab257e4d58b866fee6cd75b3a3736aef
[INFO] running `Command { std: "docker" "start" "-a" "20a5fae92865ae154e13b88443406c71ab257e4d58b866fee6cd75b3a3736aef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[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] [stdout] error: aborting due to 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" "20a5fae92865ae154e13b88443406c71ab257e4d58b866fee6cd75b3a3736aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a5fae92865ae154e13b88443406c71ab257e4d58b866fee6cd75b3a3736aef", kill_on_drop: false }`
[INFO] [stdout] 20a5fae92865ae154e13b88443406c71ab257e4d58b866fee6cd75b3a3736aef