[INFO] cloning repository https://github.com/yixinin/muse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yixinin/muse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyixinin%2Fmuse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyixinin%2Fmuse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95be43d4f8d5372de0b96a095616f5eaac8d89e4
[INFO] testing yixinin/muse against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyixinin%2Fmuse" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yixinin/muse on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yixinin/muse
[INFO] finished tweaking git repo https://github.com/yixinin/muse
[INFO] tweaked toml for git repo https://github.com/yixinin/muse written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/yixinin/muse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] a76fb74cf551109bb1468a99015d8632e909c76766a07f2dd6d841a756b3c937
[INFO] running `Command { std: "docker" "start" "-a" "a76fb74cf551109bb1468a99015d8632e909c76766a07f2dd6d841a756b3c937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a76fb74cf551109bb1468a99015d8632e909c76766a07f2dd6d841a756b3c937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76fb74cf551109bb1468a99015d8632e909c76766a07f2dd6d841a756b3c937", kill_on_drop: false }`
[INFO] [stdout] a76fb74cf551109bb1468a99015d8632e909c76766a07f2dd6d841a756b3c937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b344484fe0b2b0289c1036f53cd2322df1d5b304cf745ed2cf47fdabd821c11a
[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" "b344484fe0b2b0289c1036f53cd2322df1d5b304cf745ed2cf47fdabd821c11a", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling futures-sink v0.3.14
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling protobuf v2.18.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling httpbis v0.9.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling futures-channel v0.3.14
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling unix_socket v0.5.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling boringssl-src v0.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling http-body v0.4.1
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling procfs v0.9.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling skiplist v0.3.0
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling grpcio-sys v0.8.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling polling v2.0.3
[INFO] [stderr]    Compiling log-ndc v0.2.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling fail v0.4.0
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling async-io v1.4.0
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.14/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 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="compat"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="futures_01"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=a808a2b0bdd4befe -C extra-filename=-a808a2b0bdd4befe --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_01=/opt/rustwide/target/debug/deps/libfutures-6f5ea06de4b094fc.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-3823af808cddb8b2.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-dde91cb2e7ed9d5d.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-9c689ee0a6e3ab77.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-1d067849489192c0.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-b076dbdb22788b08.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-688c45d3a536a53e.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e7268561e64e0c3d.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-859511f254389867.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-6658f7c5b0898ee7.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-a2253b72c5eeb833.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-5da14cb51e9af69b.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-3fe28842158339e2.rmeta --cap-lints allow --cap-lints=forbid` (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" "b344484fe0b2b0289c1036f53cd2322df1d5b304cf745ed2cf47fdabd821c11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b344484fe0b2b0289c1036f53cd2322df1d5b304cf745ed2cf47fdabd821c11a", kill_on_drop: false }`
[INFO] [stdout] b344484fe0b2b0289c1036f53cd2322df1d5b304cf745ed2cf47fdabd821c11a