[INFO] fetching crate spotify_player 0.2.0...
[INFO] testing spotify_player-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate spotify_player 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate spotify_player 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spotify_player 0.2.0
[INFO] finished tweaking crates.io crate spotify_player 0.2.0
[INFO] tweaked toml for crates.io crate spotify_player 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate spotify_player 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08ab76effac22b5b029688485356a751a9cf1256c65cd44041fe5de50c3a2920
[INFO] running `Command { std: "docker" "start" "-a" "08ab76effac22b5b029688485356a751a9cf1256c65cd44041fe5de50c3a2920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08ab76effac22b5b029688485356a751a9cf1256c65cd44041fe5de50c3a2920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ab76effac22b5b029688485356a751a9cf1256c65cd44041fe5de50c3a2920", kill_on_drop: false }`
[INFO] [stdout] 08ab76effac22b5b029688485356a751a9cf1256c65cd44041fe5de50c3a2920
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 333a07d5516263d10a9ab2c40d520805d2182309e63a4ae1bd3f1a521b30f12a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "333a07d5516263d10a9ab2c40d520805d2182309e63a4ae1bd3f1a521b30f12a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling protobuf v2.14.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling cpal v0.13.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling shell-words v1.0.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling webbrowser v0.5.5
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling priority-queue v1.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling shannon v0.2.0
[INFO] [stderr]    Compiling ogg v0.8.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling config_parser_derive v0.1.1
[INFO] [stderr]    Compiling lewton v0.10.2
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling pbkdf2 v0.8.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]    Compiling aes-ctr v0.6.0
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling nix v0.20.1
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling if-addrs v0.6.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling rpassword v5.0.1
[INFO] [stderr]    Compiling config_parser2 v0.1.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling protobuf-codegen v2.14.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling crossterm v0.19.0
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling crossterm v0.20.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling lru v0.6.6
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling tui v0.15.0
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.14.0
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr] error: could not compile `protobuf`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name protobuf /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protobuf-2.14.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=909fd714070e3c01 -C extra-filename=-909fd714070e3c01 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "333a07d5516263d10a9ab2c40d520805d2182309e63a4ae1bd3f1a521b30f12a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333a07d5516263d10a9ab2c40d520805d2182309e63a4ae1bd3f1a521b30f12a", kill_on_drop: false }`
[INFO] [stdout] 333a07d5516263d10a9ab2c40d520805d2182309e63a4ae1bd3f1a521b30f12a