[INFO] fetching crate confab 0.2.0...
[INFO] checking confab-0.2.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate confab 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate confab 0.2.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate confab 0.2.0
[INFO] finished tweaking crates.io crate confab 0.2.0
[INFO] tweaked toml for crates.io crate confab 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate confab 0.2.0 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-jsonlines v0.4.0
[INFO] [stderr]   Downloaded conpty v0.5.1
[INFO] [stderr]   Downloaded ptyprocess v0.4.1
[INFO] [stderr]   Downloaded expectrl v0.7.0
[INFO] [stderr]   Downloaded tokio-rustls v0.24.0
[INFO] [stderr]   Downloaded serde v1.0.163
[INFO] [stderr]   Downloaded rustls v0.21.1
[INFO] [stderr]   Downloaded tokio v1.28.2
[INFO] [stderr]   Downloaded rustls-webpki v0.100.1
[INFO] [stderr]   Downloaded thingbuf v0.1.4
[INFO] [stderr]   Downloaded time v0.3.21
[INFO] [stderr]   Downloaded mio v0.8.7
[INFO] [stderr]   Downloaded openssl-sys v0.9.87
[INFO] [stderr]   Downloaded pin-project v1.1.0
[INFO] [stderr]   Downloaded openssl v0.10.52
[INFO] [stderr]   Downloaded tempfile v3.5.0
[INFO] [stderr]   Downloaded rstest_macros v0.17.0
[INFO] [stderr]   Downloaded rstest v0.17.0
[INFO] [stderr]   Downloaded serde_derive v1.0.163
[INFO] [stderr]   Downloaded pin-project-internal v1.1.0
[INFO] [stderr]   Downloaded rustyline-async v0.3.2
[INFO] [stderr]   Downloaded openssl-src v111.25.3+1.1.1t
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9bc35621b73f48350dcc7df9124506ef94b4c823e79f28c63a0d1cc0e4a8b2d
[INFO] running `Command { std: "docker" "start" "-a" "b9bc35621b73f48350dcc7df9124506ef94b4c823e79f28c63a0d1cc0e4a8b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9bc35621b73f48350dcc7df9124506ef94b4c823e79f28c63a0d1cc0e4a8b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bc35621b73f48350dcc7df9124506ef94b4c823e79f28c63a0d1cc0e4a8b2d", kill_on_drop: false }`
[INFO] [stdout] b9bc35621b73f48350dcc7df9124506ef94b4c823e79f28c63a0d1cc0e4a8b2d
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6912c44ce56b2807774d725863984f7a4bdfa92922ac8823ce4872bfa3528939
[INFO] running `Command { std: "docker" "start" "-a" "6912c44ce56b2807774d725863984f7a4bdfa92922ac8823ce4872bfa3528939", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling signal-hook v0.3.15
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]     Checking mio v0.8.7
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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 parking_lot v0.12.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustls v0.21.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling time v0.3.21
[INFO] [stderr]    Compiling async-io v1.13.0
[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" "6912c44ce56b2807774d725863984f7a4bdfa92922ac8823ce4872bfa3528939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6912c44ce56b2807774d725863984f7a4bdfa92922ac8823ce4872bfa3528939", kill_on_drop: false }`
[INFO] [stdout] 6912c44ce56b2807774d725863984f7a4bdfa92922ac8823ce4872bfa3528939
