[INFO] fetching crate rnotify 0.2.0...
[INFO] building rnotify-0.2.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rnotify 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rnotify 0.2.0
[INFO] finished tweaking crates.io crate rnotify 0.2.0
[INFO] tweaked toml for crates.io crate rnotify 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rnotify 0.2.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rnotify 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ghost v0.1.7
[INFO] [stderr]   Downloaded typetag v0.2.5
[INFO] [stderr]   Downloaded inventory v0.3.3
[INFO] [stderr]   Downloaded erased-serde v0.3.24
[INFO] [stderr]   Downloaded toml_datetime v0.5.1
[INFO] [stderr]   Downloaded proc-macro-crate v1.3.0
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded discord-webhook v0.1.0
[INFO] [stderr]   Downloaded async-io v1.12.0
[INFO] [stderr]   Downloaded zvariant v3.11.0
[INFO] [stderr]   Downloaded email_address v0.2.3
[INFO] [stderr]   Downloaded minreq v2.6.0
[INFO] [stderr]   Downloaded zbus_names v2.5.0
[INFO] [stderr]   Downloaded chrono v0.4.20
[INFO] [stderr]   Downloaded webpki-roots v0.22.4
[INFO] [stderr]   Downloaded time v0.3.19
[INFO] [stderr]   Downloaded toml_edit v0.18.1
[INFO] [stderr]   Downloaded zbus_macros v3.10.0
[INFO] [stderr]   Downloaded zbus v3.10.0
[INFO] [stderr]   Downloaded lettre v0.10.1
[INFO] [stderr]   Downloaded nom8 v0.2.0
[INFO] [stderr]   Downloaded quoted_printable v0.4.5
[INFO] [stderr]   Downloaded async-recursion v1.0.2
[INFO] [stderr]   Downloaded serde_repr v0.1.10
[INFO] [stderr]   Downloaded notify-rust v4.7.1
[INFO] [stderr]   Downloaded email-encoding v0.1.3
[INFO] [stderr]   Downloaded typetag-impl v0.2.5
[INFO] [stderr]   Downloaded zvariant_derive v3.11.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71ccb272bfd37760f448dab394de6d5197e8eedf152718515485235efc6f563f
[INFO] running `Command { std: "docker" "start" "-a" "71ccb272bfd37760f448dab394de6d5197e8eedf152718515485235efc6f563f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71ccb272bfd37760f448dab394de6d5197e8eedf152718515485235efc6f563f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ccb272bfd37760f448dab394de6d5197e8eedf152718515485235efc6f563f", kill_on_drop: false }`
[INFO] [stdout] 71ccb272bfd37760f448dab394de6d5197e8eedf152718515485235efc6f563f
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bb8cfb006e40a3ac0644e710d9bd764e762b470097ca6ebc9ed896329b12604
[INFO] running `Command { std: "docker" "start" "-a" "8bb8cfb006e40a3ac0644e710d9bd764e762b470097ca6ebc9ed896329b12604", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.142
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling erased-serde v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 minreq v2.6.0
[INFO] [stderr]    Compiling match_cfg v0.1.0
[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" "8bb8cfb006e40a3ac0644e710d9bd764e762b470097ca6ebc9ed896329b12604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb8cfb006e40a3ac0644e710d9bd764e762b470097ca6ebc9ed896329b12604", kill_on_drop: false }`
[INFO] [stdout] 8bb8cfb006e40a3ac0644e710d9bd764e762b470097ca6ebc9ed896329b12604