[INFO] fetching crate aubio 0.2.1...
[INFO] checking aubio-0.2.1 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate aubio 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate aubio 0.2.1 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aubio 0.2.1
[INFO] finished tweaking crates.io crate aubio 0.2.1
[INFO] tweaked toml for crates.io crate aubio 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate aubio 0.2.1 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" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded pkg-config v0.3.19
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded thiserror v1.0.24
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded bzip2 v0.3.3
[INFO] [stderr]   Downloaded crc32fast v1.2.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded version_check v0.9.3
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded clang-sys v1.2.0
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded bzip2-sys v0.1.10+1.0.8
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded libloading v0.7.0
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded flate2 v1.0.20
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded lazy_static v0.1.16
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded jobserver v0.1.22
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded ftp v3.0.1
[INFO] [stderr]   Downloaded log v0.4.14
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded fftw-sys v0.6.0
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded which v3.1.1
[INFO] [stderr]   Downloaded bindgen v0.58.1
[INFO] [stderr]   Downloaded fs_extra v1.2.0
[INFO] [stderr]   Downloaded cexpr v0.4.0
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.18
[INFO] [stderr]   Downloaded fftw-src v0.3.3
[INFO] [stderr]   Downloaded cc v1.0.67
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded env_logger v0.8.3
[INFO] [stderr]   Downloaded aho-corasick v0.7.18
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded shlex v1.0.0
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] [stderr]   Downloaded byteorder v1.4.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.24
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] [stderr]   Downloaded zip v0.5.12
[INFO] [stderr]   Downloaded aubio-sys v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d6f42bd674410ee86ed2fb0dcf8b103ed76d3229a82671753a8ead00fd9a3d9
[INFO] running `Command { std: "docker" "start" "-a" "7d6f42bd674410ee86ed2fb0dcf8b103ed76d3229a82671753a8ead00fd9a3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d6f42bd674410ee86ed2fb0dcf8b103ed76d3229a82671753a8ead00fd9a3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6f42bd674410ee86ed2fb0dcf8b103ed76d3229a82671753a8ead00fd9a3d9", kill_on_drop: false }`
[INFO] [stdout] 7d6f42bd674410ee86ed2fb0dcf8b103ed76d3229a82671753a8ead00fd9a3d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f388c8d429e8c5d83360f4974c79e2f91c142d493646dffe4676374fa3997a6
[INFO] running `Command { std: "docker" "start" "-a" "1f388c8d429e8c5d83360f4974c79e2f91c142d493646dffe4676374fa3997a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling aubio-sys v0.2.1
[INFO] [stderr]     Checking aubio v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/log.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct Log(Box<dyn Logger>);
[INFO] [stdout]     |            --- ^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/log.rs:122:16
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct Log(Box<dyn Logger>);
[INFO] [stdout]     |            --- ^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.36s
[INFO] running `Command { std: "docker" "inspect" "1f388c8d429e8c5d83360f4974c79e2f91c142d493646dffe4676374fa3997a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f388c8d429e8c5d83360f4974c79e2f91c142d493646dffe4676374fa3997a6", kill_on_drop: false }`
[INFO] [stdout] 1f388c8d429e8c5d83360f4974c79e2f91c142d493646dffe4676374fa3997a6