[INFO] fetching crate wavegen 0.4.1... [INFO] testing wavegen-0.4.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] extracting crate wavegen 0.4.1 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate wavegen 0.4.1 [INFO] finished tweaking crates.io crate wavegen 0.4.1 [INFO] tweaked toml for crates.io crate wavegen 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate wavegen 0.4.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate wavegen 0.4.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb50f177968885162aa2d3ba5df1c52ebe1dcc239dcabac5f7a35b63860d438b [INFO] running `Command { std: "docker" "start" "-a" "fb50f177968885162aa2d3ba5df1c52ebe1dcc239dcabac5f7a35b63860d438b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb50f177968885162aa2d3ba5df1c52ebe1dcc239dcabac5f7a35b63860d438b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb50f177968885162aa2d3ba5df1c52ebe1dcc239dcabac5f7a35b63860d438b", kill_on_drop: false }` [INFO] [stdout] fb50f177968885162aa2d3ba5df1c52ebe1dcc239dcabac5f7a35b63860d438b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3f74b2b8a3061aca33d01ae7ffddf0ec9ac15bfd8429c10bba72a0881a3fc946 [INFO] running `Command { std: "docker" "start" "-a" "3f74b2b8a3061aca33d01ae7ffddf0ec9ac15bfd8429c10bba72a0881a3fc946", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling wavegen v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:288:17 [INFO] [stdout] | [INFO] [stdout] 288 | pub fn iter(&self) -> WaveformIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 288 | pub fn iter(&self) -> WaveformIterator<'_, T, P> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s [INFO] running `Command { std: "docker" "inspect" "3f74b2b8a3061aca33d01ae7ffddf0ec9ac15bfd8429c10bba72a0881a3fc946", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f74b2b8a3061aca33d01ae7ffddf0ec9ac15bfd8429c10bba72a0881a3fc946", kill_on_drop: false }` [INFO] [stdout] 3f74b2b8a3061aca33d01ae7ffddf0ec9ac15bfd8429c10bba72a0881a3fc946 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b563b94c752cc5229d742edaaefefa470616f64948573c820129badc1f8f3711 [INFO] running `Command { std: "docker" "start" "-a" "b563b94c752cc5229d742edaaefefa470616f64948573c820129badc1f8f3711", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.49 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling thiserror v1.0.38 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling ucd-trie v0.1.5 [INFO] [stderr] Compiling pkg-config v0.3.26 [INFO] [stderr] Compiling cc v1.0.78 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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 serde_derive v1.0.152 [INFO] [stderr] Compiling miniz_oxide v0.6.2 [INFO] [stderr] Compiling yeslogic-fontconfig-sys v3.2.0 [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" "b563b94c752cc5229d742edaaefefa470616f64948573c820129badc1f8f3711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b563b94c752cc5229d742edaaefefa470616f64948573c820129badc1f8f3711", kill_on_drop: false }` [INFO] [stdout] b563b94c752cc5229d742edaaefefa470616f64948573c820129badc1f8f3711