[INFO] cloning repository https://github.com/guirkgumbo/rust-audio-recording
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guirkgumbo/rust-audio-recording" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguirkgumbo%2Frust-audio-recording", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguirkgumbo%2Frust-audio-recording'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bacef1563608a2d89aa9f4b77c0824cef39d98ed
[INFO] checking guirkgumbo/rust-audio-recording against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguirkgumbo%2Frust-audio-recording" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guirkgumbo/rust-audio-recording on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guirkgumbo/rust-audio-recording
[INFO] finished tweaking git repo https://github.com/guirkgumbo/rust-audio-recording
[INFO] tweaked toml for git repo https://github.com/guirkgumbo/rust-audio-recording written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/guirkgumbo/rust-audio-recording 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded winnow v0.3.3
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15a5ff52aa1a44daa29afd4aa0630bf32f7b48f1e16245a1e85e4510eb4ae147
[INFO] running `Command { std: "docker" "start" "-a" "15a5ff52aa1a44daa29afd4aa0630bf32f7b48f1e16245a1e85e4510eb4ae147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a5ff52aa1a44daa29afd4aa0630bf32f7b48f1e16245a1e85e4510eb4ae147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a5ff52aa1a44daa29afd4aa0630bf32f7b48f1e16245a1e85e4510eb4ae147", kill_on_drop: false }`
[INFO] [stdout] 15a5ff52aa1a44daa29afd4aa0630bf32f7b48f1e16245a1e85e4510eb4ae147
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ae1fb383e2513f952fd690064ed37174680715c4bc79afdf9af5785d4aebcce
[INFO] running `Command { std: "docker" "start" "-a" "2ae1fb383e2513f952fd690064ed37174680715c4bc79afdf9af5785d4aebcce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling cpal v0.14.2
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]    Compiling alsa-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-macro2-1.0.51/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] [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" "2ae1fb383e2513f952fd690064ed37174680715c4bc79afdf9af5785d4aebcce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae1fb383e2513f952fd690064ed37174680715c4bc79afdf9af5785d4aebcce", kill_on_drop: false }`
[INFO] [stdout] 2ae1fb383e2513f952fd690064ed37174680715c4bc79afdf9af5785d4aebcce