[INFO] fetching crate failover 0.1.2...
[INFO] checking failover-0.1.2 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate failover 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate failover 0.1.2 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate failover 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate failover 0.1.2
[INFO] tweaked toml for crates.io crate failover 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate failover 0.1.2 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-derive v0.11.8
[INFO] [stderr]   Downloaded async-stream-impl v0.3.4
[INFO] [stderr]   Downloaded prost v0.11.8
[INFO] [stderr]   Downloaded async-stream v0.3.4
[INFO] [stderr]   Downloaded axum-core v0.3.3
[INFO] [stderr]   Downloaded prost-types v0.11.8
[INFO] [stderr]   Downloaded prettyplease v0.1.24
[INFO] [stderr]   Downloaded serde v1.0.153
[INFO] [stderr]   Downloaded etcd-client v0.10.3
[INFO] [stderr]   Downloaded axum v0.6.7
[INFO] [stderr]   Downloaded prost-build v0.11.8
[INFO] [stderr]   Downloaded async-trait v0.1.66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed7c06d5540c7b96cb04801945c6e901dcbf4828b5dbf4259c8de3d942f7362b
[INFO] running `Command { std: "docker" "start" "-a" "ed7c06d5540c7b96cb04801945c6e901dcbf4828b5dbf4259c8de3d942f7362b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed7c06d5540c7b96cb04801945c6e901dcbf4828b5dbf4259c8de3d942f7362b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7c06d5540c7b96cb04801945c6e901dcbf4828b5dbf4259c8de3d942f7362b", kill_on_drop: false }`
[INFO] [stdout] ed7c06d5540c7b96cb04801945c6e901dcbf4828b5dbf4259c8de3d942f7362b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d6139ee70a6dda70f8c0b89bcf202c3221c28383540fa05ee5d8448a0cde5ee
[INFO] running `Command { std: "docker" "start" "-a" "9d6139ee70a6dda70f8c0b89bcf202c3221c28383540fa05ee5d8448a0cde5ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 itertools v0.10.5
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling prettyplease v0.1.24
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]     Checking untrusted v0.7.1
[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" "9d6139ee70a6dda70f8c0b89bcf202c3221c28383540fa05ee5d8448a0cde5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d6139ee70a6dda70f8c0b89bcf202c3221c28383540fa05ee5d8448a0cde5ee", kill_on_drop: false }`
[INFO] [stdout] 9d6139ee70a6dda70f8c0b89bcf202c3221c28383540fa05ee5d8448a0cde5ee
