[INFO] fetching crate gmusic 0.3.1...
[INFO] testing gmusic-0.3.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gmusic 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gmusic 0.3.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmusic 0.3.1
[INFO] finished tweaking crates.io crate gmusic 0.3.1
[INFO] tweaked toml for crates.io crate gmusic 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate gmusic 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79850b251a3f6ca375994f37045d0f38eca4d752a912e66bad8f25ca31c224c3
[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" "79850b251a3f6ca375994f37045d0f38eca4d752a912e66bad8f25ca31c224c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79850b251a3f6ca375994f37045d0f38eca4d752a912e66bad8f25ca31c224c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79850b251a3f6ca375994f37045d0f38eca4d752a912e66bad8f25ca31c224c3", kill_on_drop: false }`
[INFO] [stdout] 79850b251a3f6ca375994f37045d0f38eca4d752a912e66bad8f25ca31c224c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84a5977828899353e611d8d357f464efdad9f489f2d2d12c1a6838ab68bd704b
[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" "84a5977828899353e611d8d357f464efdad9f489f2d2d12c1a6838ab68bd704b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling base64 v0.12.1
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.9
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling async-trait v0.1.31
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling hyper v0.13.5
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling oauth2 v3.0.0-alpha.9
[INFO] [stderr]    Compiling gmusic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `Command { std: "docker" "inspect" "84a5977828899353e611d8d357f464efdad9f489f2d2d12c1a6838ab68bd704b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a5977828899353e611d8d357f464efdad9f489f2d2d12c1a6838ab68bd704b", kill_on_drop: false }`
[INFO] [stdout] 84a5977828899353e611d8d357f464efdad9f489f2d2d12c1a6838ab68bd704b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 744b9c1d08b44bd7bb5e50cb7d61f7d0a8c1162f1379651b8694ea5eb50e4482
[INFO] running `Command { std: "docker" "start" "-a" "744b9c1d08b44bd7bb5e50cb7d61f7d0a8c1162f1379651b8694ea5eb50e4482", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling gmusic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `gmusic`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name playlists --edition=2018 examples/playlists.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=6a11b08562ad5a15 -C extra-filename=-6a11b08562ad5a15 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-c3e0cc549ffd094d.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-77d123546e861120.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-788fb1a91f1b90ab.rlib --extern gmusic=/opt/rustwide/target/debug/deps/libgmusic-d5c6cd9afde8293d.rlib --extern hmac=/opt/rustwide/target/debug/deps/libhmac-2798c4e5f778fd9e.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-1761913616bdc5f1.rlib --extern oauth2=/opt/rustwide/target/debug/deps/liboauth2-6894f092d62ef945.rlib --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-e62a17c353c63415.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-fc07a485f60fe3d1.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9a096159fe37fe38.rlib --extern sha1=/opt/rustwide/target/debug/deps/libsha1-3c4b65068345abfa.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-63523bd123f320b9.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-3e2fa162d397ca17.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/backtrace-sys-3cf169fb36d25f90/out` (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" "744b9c1d08b44bd7bb5e50cb7d61f7d0a8c1162f1379651b8694ea5eb50e4482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "744b9c1d08b44bd7bb5e50cb7d61f7d0a8c1162f1379651b8694ea5eb50e4482", kill_on_drop: false }`
[INFO] [stdout] 744b9c1d08b44bd7bb5e50cb7d61f7d0a8c1162f1379651b8694ea5eb50e4482