[INFO] cloning repository https://github.com/fanyanjun/learn-proof [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fanyanjun/learn-proof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanyanjun%2Flearn-proof", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanyanjun%2Flearn-proof'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bf1e9fb4181d4d633cc374eb87a74843258b9de5 [INFO] checking fanyanjun/learn-proof against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffanyanjun%2Flearn-proof" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fanyanjun/learn-proof on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fanyanjun/learn-proof [INFO] finished tweaking git repo https://github.com/fanyanjun/learn-proof [INFO] tweaked toml for git repo https://github.com/fanyanjun/learn-proof written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/fanyanjun/learn-proof already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded memory_units v0.3.0 [INFO] [stderr] Downloaded jsonrpc-core-client v14.2.0 [INFO] [stderr] Downloaded signature v1.1.0 [INFO] [stderr] Downloaded jsonrpc-derive v14.2.1 [INFO] [stderr] Downloaded slog_derive v0.2.0 [INFO] [stderr] Downloaded x25519-dalek v0.6.0 [INFO] [stderr] Downloaded jsonrpc-client-transports v14.2.0 [INFO] [stderr] Downloaded jsonrpc-http-server v14.2.0 [INFO] [stderr] Downloaded libp2p-tcp v0.20.0 [INFO] [stderr] Downloaded wasmparser v0.59.0 [INFO] [stderr] Downloaded linked_hash_set v0.1.4 [INFO] [stderr] Downloaded protobuf v2.16.2 [INFO] [stderr] Downloaded ip_network v0.3.4 [INFO] [stderr] Downloaded tokio-rustls v0.14.0 [INFO] [stderr] Downloaded parity-db v0.1.2 [INFO] [stderr] Downloaded schnorrkel v0.9.1 [INFO] [stderr] Downloaded kvdb-memorydb v0.7.0 [INFO] [stderr] Downloaded owning_ref v0.4.1 [INFO] [stderr] Downloaded bincode v1.3.1 [INFO] [stderr] Downloaded rocksdb v0.14.0 [INFO] [stderr] Downloaded assert_matches v1.3.0 [INFO] [stderr] Downloaded cranelift-wasm v0.66.0 [INFO] [stderr] Downloaded parity-send-wrapper v0.1.0 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded fastrand v1.3.3 [INFO] [stderr] Downloaded safe-mix v1.0.1 [INFO] [stderr] Downloaded wat v1.0.22 [INFO] [stderr] Downloaded futures-diagnose v1.0.1 [INFO] [stderr] Downloaded wasmtime-obj v0.19.0 [INFO] [stderr] Downloaded structopt-derive v0.4.8 [INFO] [stderr] Downloaded aes-gcm v0.6.0 [INFO] [stderr] Downloaded scroll_derive v0.10.2 [INFO] [stderr] Downloaded parity-wasm v0.41.0 [INFO] [stderr] Downloaded procfs v0.7.9 [INFO] [stderr] Downloaded tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Downloaded hmac-drbg v0.2.0 [INFO] [stderr] Downloaded hash256-std-hasher v0.15.2 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.65 [INFO] [stderr] Downloaded impl-codec v0.4.2 [INFO] [stderr] Downloaded jsonrpc-core v14.2.0 [INFO] [stderr] Downloaded target-lexicon v0.10.0 [INFO] [stderr] Downloaded zstd v0.5.3+zstd.1.4.5 [INFO] [stderr] Downloaded futures_codec v0.4.1 [INFO] [stderr] Downloaded ed25519-dalek v1.0.0-pre.4 [INFO] [stderr] Downloaded netstat2 v0.8.1 [INFO] [stderr] Downloaded substrate-wasmtime v0.19.0 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded quicksink v0.1.2 [INFO] [stderr] Downloaded soketto v0.4.1 [INFO] [stderr] Downloaded get_if_addrs-sys v0.1.1 [INFO] [stderr] Downloaded poly1305 v0.6.0 [INFO] [stderr] Downloaded c_linked_list v1.1.1 [INFO] [stderr] Downloaded block-cipher v0.7.1 [INFO] [stderr] Downloaded aesni v0.7.0 [INFO] [stderr] Downloaded libp2p-mdns v0.20.0 [INFO] [stderr] Downloaded kvdb-rocksdb v0.9.0 [INFO] [stderr] Downloaded aes-soft v0.4.0 [INFO] [stderr] Downloaded aes v0.4.0 [INFO] [stderr] Downloaded libflate_lz77 v1.0.0 [INFO] [stderr] Downloaded wasmtime-debug v0.19.0 [INFO] [stderr] Downloaded rpassword v4.0.5 [INFO] [stderr] Downloaded wasmtime-environ v0.19.0 [INFO] [stderr] Downloaded wasmtime-runtime v0.19.0 [INFO] [stderr] Downloaded fdlimit v0.1.4 [INFO] [stderr] Downloaded slog-scope v4.3.0 [INFO] [stderr] Downloaded strum_macros v0.16.0 [INFO] [stderr] Downloaded libp2p-wasm-ext v0.20.1 [INFO] [stderr] Downloaded zstd-safe v2.0.5+zstd.1.4.5 [INFO] [stderr] Downloaded proc-macro-error-attr v1.0.3 [INFO] [stderr] Downloaded rustls v0.18.0 [INFO] [stderr] Downloaded redox_users v0.3.4 [INFO] [stderr] Downloaded errno v0.2.6 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.65 [INFO] [stderr] Downloaded cranelift-codegen-shared v0.66.0 [INFO] [stderr] Downloaded cranelift-entity v0.66.0 [INFO] [stderr] Downloaded cranelift-frontend v0.66.0 [INFO] [stderr] Downloaded cranelift-native v0.66.0 [INFO] [stderr] Downloaded tokio-uds v0.2.7 [INFO] [stderr] Downloaded js-sys v0.3.42 [INFO] [stderr] Downloaded parity-tokio-ipc v0.4.0 [INFO] [stderr] Downloaded tokio-named-pipes v0.1.0 [INFO] [stderr] Downloaded jsonrpc-server-utils v14.2.0 [INFO] [stderr] Downloaded jsonrpc-ipc-server v14.2.0 [INFO] [stderr] Downloaded libp2p-identify v0.20.0 [INFO] [stderr] Downloaded const-random-macro v0.1.8 [INFO] [stderr] Downloaded hashbrown v0.6.3 [INFO] [stderr] Downloaded hex-literal-impl v0.2.2 [INFO] [stderr] Downloaded hex-literal v0.2.1 [INFO] [stderr] Downloaded exit-future v0.2.0 [INFO] [stderr] Downloaded blake2s_simd v0.5.10 [INFO] [stderr] Downloaded slog v2.5.2 [INFO] [stderr] Downloaded generic-array v0.14.3 [INFO] [stderr] Downloaded byte-slice-cast v0.3.5 [INFO] [stderr] Downloaded ntapi v0.3.4 [INFO] [stderr] Downloaded impl-serde v0.2.3 [INFO] [stderr] Downloaded enum-primitive-derive v0.1.2 [INFO] [stderr] Downloaded tokio-sync v0.2.0-alpha.6 [INFO] [stderr] Downloaded fs-swap v0.2.4 [INFO] [stderr] Downloaded bs58 v0.3.1 [INFO] [stderr] Downloaded platforms v0.2.1 [INFO] [stderr] Downloaded secrecy v0.6.0 [INFO] [stderr] Downloaded directories v2.0.2 [INFO] [stderr] Downloaded libp2p-swarm v0.20.1 [INFO] [stderr] Downloaded webpki-roots v0.19.0 [INFO] [stderr] Downloaded libp2p-kad v0.21.0 [INFO] [stderr] Downloaded finality-grandpa v0.12.3 [INFO] [stderr] Downloaded libp2p-mplex v0.20.0 [INFO] [stderr] Downloaded libp2p-noise v0.21.0 [INFO] [stderr] Downloaded raw-cpuid v7.0.3 [INFO] [stderr] Downloaded ahash v0.2.18 [INFO] [stderr] Downloaded regalloc v0.0.27 [INFO] [stderr] Downloaded jsonrpc-pubsub v14.2.0 [INFO] [stderr] Downloaded bindgen v0.53.3 [INFO] [stderr] Downloaded cranelift-codegen-meta v0.66.0 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Downloaded chacha20poly1305 v0.5.1 [INFO] [stderr] Downloaded nalgebra v0.18.1 [INFO] [stderr] Downloaded linregress v0.1.7 [INFO] [stderr] Downloaded sha3 v0.8.2 [INFO] [stderr] Downloaded uint v0.8.3 [INFO] [stderr] Downloaded libp2p-ping v0.20.0 [INFO] [stderr] Downloaded ws v0.9.1 [INFO] [stderr] Downloaded jsonrpc-ws-server v14.2.0 [INFO] [stderr] Downloaded wast v21.0.0 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.65 [INFO] [stderr] Downloaded wasmtime-jit v0.19.0 [INFO] [stderr] Downloaded wasmtime-profiling v0.19.0 [INFO] [stderr] Downloaded rust-argon2 v0.7.0 [INFO] [stderr] Downloaded statrs v0.10.0 [INFO] [stderr] Downloaded chacha20 v0.4.3 [INFO] [stderr] Downloaded wasm-bindgen v0.2.65 [INFO] [stderr] Downloaded bitmask v0.5.0 [INFO] [stderr] Downloaded file-per-thread-logger v0.1.3 [INFO] [stderr] Downloaded sha2 v0.9.1 [INFO] [stderr] Downloaded event-listener v2.2.1 [INFO] [stderr] Downloaded lru v0.4.3 [INFO] [stderr] Downloaded stream-cipher v0.4.1 [INFO] [stderr] Downloaded memory-db v0.24.1 [INFO] [stderr] Downloaded data-encoding v2.2.1 [INFO] [stderr] Downloaded multistream-select v0.8.2 [INFO] [stderr] Downloaded prometheus v0.8.0 [INFO] [stderr] Downloaded const-random v0.1.8 [INFO] [stderr] Downloaded yamux v0.4.7 [INFO] [stderr] Downloaded libp2p-core-derive v0.20.1 [INFO] [stderr] Downloaded libp2p-dns v0.20.0 [INFO] [stderr] Downloaded asn1_der_derive v0.1.2 [INFO] [stderr] Downloaded parity-util-mem v0.7.0 [INFO] [stderr] Downloaded nohash-hasher v0.2.0 [INFO] [stderr] Downloaded parity-multiaddr v0.9.1 [INFO] [stderr] Downloaded unsigned-varint v0.4.0 [INFO] [stderr] Downloaded concurrent-queue v1.1.2 [INFO] [stderr] Downloaded wasm-timer v0.2.4 [INFO] [stderr] Downloaded slog-json v2.3.0 [INFO] [stderr] Downloaded structopt v0.3.15 [INFO] [stderr] Downloaded impl-trait-for-tuples v0.1.3 [INFO] [stderr] Downloaded proc-macro-error v1.0.3 [INFO] [stderr] Downloaded ref-cast v1.0.2 [INFO] [stderr] Downloaded cranelift-codegen v0.66.0 [INFO] [stderr] Downloaded snow v0.7.1 [INFO] [stderr] Downloaded librocksdb-sys v6.7.4 [INFO] [stderr] Downloaded asn1_der v0.6.3 [INFO] [stderr] Downloaded web-sys v0.3.42 [INFO] [stderr] Downloaded curve25519-dalek v2.1.0 [INFO] [stderr] Downloaded libflate v1.0.2 [INFO] [stderr] Downloaded retain_mut v0.1.1 [INFO] [stderr] Downloaded matrixmultiply v0.2.3 [INFO] [stderr] Downloaded libp2p-websocket v0.21.1 [INFO] [stderr] Downloaded zstd-sys v1.4.17+zstd.1.4.5 [INFO] [stderr] Downloaded strum v0.16.0 [INFO] [stderr] Downloaded libsecp256k1 v0.3.5 [INFO] [stderr] Downloaded libp2p-yamux v0.20.0 [INFO] [stderr] Downloaded kvdb v0.7.0 [INFO] [stderr] Downloaded ed25519 v1.0.1 [INFO] [stderr] Downloaded trie-db v0.22.1 [INFO] [stderr] Downloaded get_if_addrs v0.5.3 [INFO] [stderr] Downloaded paste v0.1.18 [INFO] [stderr] Downloaded integer-sqrt v0.1.3 [INFO] [stderr] Downloaded ghash v0.3.0 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.65 [INFO] [stderr] Downloaded libp2p v0.22.0 [INFO] [stderr] Downloaded environmental v1.1.1 [INFO] [stderr] Downloaded tracing v0.1.17 [INFO] [stderr] Downloaded polyval v0.4.0 [INFO] [stderr] Downloaded tiny-bip39 v0.7.3 [INFO] [stderr] Downloaded async-tls v0.8.0 [INFO] [stderr] Downloaded libp2p-core v0.20.1 [INFO] [stderr] Downloaded primitive-types v0.7.2 [INFO] [stderr] Downloaded rental-impl v0.5.5 [INFO] [stderr] Downloaded merlin v2.0.0 [INFO] [stderr] Downloaded twox-hash v1.5.0 [INFO] [stderr] Downloaded wasmparser v0.57.0 [INFO] [stderr] Downloaded hash-db v0.15.2 [INFO] [stderr] Downloaded sysinfo v0.14.15 [INFO] [stderr] Downloaded unsigned-varint v0.3.3 [INFO] [stderr] Downloaded trie-root v0.16.0 [INFO] [stderr] Downloaded multihash v0.11.2 [INFO] [stderr] Downloaded tracing-core v0.1.11 [INFO] [stderr] Downloaded async-channel v1.1.1 [INFO] [stderr] Downloaded rental v0.5.5 [INFO] [stderr] Downloaded fixed-hash v0.6.1 [INFO] [stderr] Downloaded ahash v0.3.8 [INFO] [stderr] Downloaded ref-cast-impl v1.0.2 [INFO] [stderr] Downloaded substrate-bip39 v0.4.1 [INFO] [stderr] Downloaded zeroize_derive v1.0.0 [INFO] [stderr] Downloaded parity-scale-codec-derive v1.2.0 [INFO] [stderr] Downloaded cranelift-bforest v0.66.0 [INFO] [stderr] Downloaded blake2 v0.9.0 [INFO] [stderr] Downloaded multimap v0.8.1 [INFO] [stderr] Downloaded parity-scale-codec v1.3.1 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.4.15 [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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2bed87a65f0e2ebff75e10ae38cdc3c5b7cf34315692d323eaecd012a0d060d [INFO] running `Command { std: "docker" "start" "-a" "a2bed87a65f0e2ebff75e10ae38cdc3c5b7cf34315692d323eaecd012a0d060d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2bed87a65f0e2ebff75e10ae38cdc3c5b7cf34315692d323eaecd012a0d060d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2bed87a65f0e2ebff75e10ae38cdc3c5b7cf34315692d323eaecd012a0d060d", kill_on_drop: false }` [INFO] [stdout] a2bed87a65f0e2ebff75e10ae38cdc3c5b7cf34315692d323eaecd012a0d060d [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=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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b206a4fe3732e3740b1f7c3891671291e7aa6763560f8554ff8eb81715d41c6c [INFO] running `Command { std: "docker" "start" "-a" "b206a4fe3732e3740b1f7c3891671291e7aa6763560f8554ff8eb81715d41c6c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] error: failed to create jobserver [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock [INFO] running `Command { std: "docker" "inspect" "b206a4fe3732e3740b1f7c3891671291e7aa6763560f8554ff8eb81715d41c6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b206a4fe3732e3740b1f7c3891671291e7aa6763560f8554ff8eb81715d41c6c", kill_on_drop: false }` [INFO] [stdout] b206a4fe3732e3740b1f7c3891671291e7aa6763560f8554ff8eb81715d41c6c