[INFO] cloning repository https://github.com/haiaty/neverstoplearning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haiaty/neverstoplearning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiaty%2Fneverstoplearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiaty%2Fneverstoplearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d9aa6df5130d30ecaa3e69b476ffd90bb9c03a52 [INFO] checking haiaty/neverstoplearning-rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaiaty%2Fneverstoplearning-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/haiaty/neverstoplearning-rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/haiaty/neverstoplearning-rust [INFO] finished tweaking git repo https://github.com/haiaty/neverstoplearning-rust [INFO] tweaked toml for git repo https://github.com/haiaty/neverstoplearning-rust written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/haiaty/neverstoplearning-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/tomusdrw/rust-web3` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bcd53f158ef5ae8c7b9a15967819b278fdb1ce970a60c41c5bb681ef35d31b21 [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" "bcd53f158ef5ae8c7b9a15967819b278fdb1ce970a60c41c5bb681ef35d31b21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bcd53f158ef5ae8c7b9a15967819b278fdb1ce970a60c41c5bb681ef35d31b21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcd53f158ef5ae8c7b9a15967819b278fdb1ce970a60c41c5bb681ef35d31b21", kill_on_drop: false }` [INFO] [stdout] bcd53f158ef5ae8c7b9a15967819b278fdb1ce970a60c41c5bb681ef35d31b21 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ddd6bd86ae0dc4a05aea078d52f15cdd9d577ef835bb5db040526eb4caf32dc2 [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" "ddd6bd86ae0dc4a05aea078d52f15cdd9d577ef835bb5db040526eb4caf32dc2", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.34 [INFO] [stderr] Compiling libc v0.2.72 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Checking futures-sink v0.3.5 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking pin-project-lite v0.1.7 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Checking rustc-hex v2.1.0 [INFO] [stderr] Checking arc-swap v0.4.7 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling openssl v0.10.30 [INFO] [stderr] Checking radium v0.3.0 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Checking openssl-probe v0.1.2 [INFO] [stderr] Checking arrayvec v0.5.1 [INFO] [stderr] Checking tinyvec v0.3.3 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Checking byte-slice-cast v0.3.5 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking waker-fn v1.0.0 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking parking v1.0.4 [INFO] [stderr] Checking async-task v3.0.0 [INFO] [stderr] Checking tower-service v0.3.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking fastrand v1.3.3 [INFO] [stderr] Compiling encoding_rs v0.8.26 [INFO] [stderr] Checking smallvec v1.4.1 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking base64 v0.12.3 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking pin-project-lite v0.2.0 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking ipnet v2.3.0 [INFO] [stderr] Checking futures-timer v3.0.2 [INFO] [stderr] Checking futures-task v0.3.5 [INFO] [stderr] Compiling indexmap v1.4.0 [INFO] [stderr] Compiling secp256k1-sys v0.1.2 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking futures-channel v0.3.5 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking http v0.2.1 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking rlp v0.4.5 [INFO] [stderr] Checking form_urlencoded v1.0.0 [INFO] [stderr] Checking bitvec v0.17.4 [INFO] [stderr] Checking concurrent-queue v1.1.1 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Checking unicode-normalization v0.1.13 [INFO] [stderr] Checking byteorder v1.3.4 [INFO] [stderr] Checking ryu v1.0.5 [INFO] [stderr] Checking crossbeam-utils v0.7.2 [INFO] [stderr] Checking impl-rlp v0.2.1 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking tiny-keccak v1.5.0 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking uint v0.8.3 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Checking sha-1 v0.8.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking secp256k1 v0.17.2 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking url v2.2.0 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking fixed-hash v0.6.1 [INFO] [stderr] Compiling pin-project-internal v0.4.22 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling derive_more v0.99.9 [INFO] [stderr] Checking tokio v0.2.21 [INFO] [stderr] Checking thiserror v1.0.20 [INFO] [stderr] Checking pin-project v0.4.22 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tokio-tls v0.3.1 [INFO] [stderr] Checking blocking v0.4.6 [INFO] [stderr] Checking h2 v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.5 [INFO] [stderr] Checking futures v0.3.5 [INFO] [stderr] Checking soketto v0.4.1 [INFO] [stderr] Checking smol v0.1.18 [INFO] [stderr] Checking async-std v1.6.2 [INFO] [stderr] Checking hyper v0.13.6 [INFO] [stderr] Checking impl-serde v0.3.1 [INFO] [stderr] Checking parity-scale-codec v1.3.1 [INFO] [stderr] Checking serde_json v1.0.56 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking ethbloom v0.9.2 [INFO] [stderr] Checking jsonrpc-core v14.2.0 [INFO] [stderr] Checking hyper-tls v0.4.3 [INFO] [stderr] Checking reqwest v0.10.9 [INFO] [stderr] Checking async-native-tls v0.3.3 [INFO] [stderr] Checking impl-codec v0.4.2 [INFO] [stderr] Checking primitive-types v0.7.2 [INFO] [stderr] Checking ethereum-types v0.9.2 [INFO] [stderr] Checking ethabi v12.0.0 [INFO] [stderr] Checking web3 v0.13.0 (https://github.com/tomusdrw/rust-web3#f8ed7137) [INFO] [stderr] Checking learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/parallelism-concurrency/benchmark.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let body = reqwest::blocking::get("https://www.rust-lang.org").unwrap() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/parallelism-concurrency/benchmark.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let body = reqwest::get("https://www.rust-lang.org").await.unwrap() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/parallelism-concurrency/benchmark.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let body = reqwest::blocking::get("https://www.rust-lang.org").unwrap() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/parallelism-concurrency/benchmark.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let body = reqwest::get("https://www.rust-lang.org").await.unwrap() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 28s [INFO] running `Command { std: "docker" "inspect" "ddd6bd86ae0dc4a05aea078d52f15cdd9d577ef835bb5db040526eb4caf32dc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddd6bd86ae0dc4a05aea078d52f15cdd9d577ef835bb5db040526eb4caf32dc2", kill_on_drop: false }` [INFO] [stdout] ddd6bd86ae0dc4a05aea078d52f15cdd9d577ef835bb5db040526eb4caf32dc2