[INFO] cloning repository https://github.com/sbeckeriv/rust-haiku-generator [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sbeckeriv/rust-haiku-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Frust-haiku-generator", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Frust-haiku-generator'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a52297c9ab5f55ed6e9a0de30f36ce7ca8e9ac59 [INFO] checking sbeckeriv/rust-haiku-generator against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Frust-haiku-generator" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sbeckeriv/rust-haiku-generator on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sbeckeriv/rust-haiku-generator [INFO] finished tweaking git repo https://github.com/sbeckeriv/rust-haiku-generator [INFO] tweaked toml for git repo https://github.com/sbeckeriv/rust-haiku-generator written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/sbeckeriv/rust-haiku-generator already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b6be6cb9490ebbd3bcbca604809386f79adb21e506c88d5c17993c2bfa31380 [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" "9b6be6cb9490ebbd3bcbca604809386f79adb21e506c88d5c17993c2bfa31380", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b6be6cb9490ebbd3bcbca604809386f79adb21e506c88d5c17993c2bfa31380", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b6be6cb9490ebbd3bcbca604809386f79adb21e506c88d5c17993c2bfa31380", kill_on_drop: false }` [INFO] [stdout] 9b6be6cb9490ebbd3bcbca604809386f79adb21e506c88d5c17993c2bfa31380 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 4131b953f9e7eee443c0978bde4e0e84cffad290fbc5b646df54289d911a2667 [INFO] running `Command { std: "docker" "start" "-a" "4131b953f9e7eee443c0978bde4e0e84cffad290fbc5b646df54289d911a2667", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling syn v1.0.21 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Checking ahash v0.3.8 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking ordermap v0.3.5 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking os_str_bytes v2.3.1 [INFO] [stderr] Checking wordsworth v0.1.1 [INFO] [stderr] Compiling proc-macro-error-attr v0.4.12 [INFO] [stderr] Compiling proc-macro-error v0.4.12 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Checking addr2line v0.12.0 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking serde v1.0.110 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking Inflector v0.11.4 [INFO] [stderr] Checking petgraph v0.4.13 [INFO] [stderr] Checking whatlang v0.11.0 [INFO] [stderr] Compiling quote v1.0.5 [INFO] [stderr] Checking backtrace v0.3.48 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking serde_yaml v0.7.5 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.1 [INFO] [stderr] Checking cmudict_core v0.2.2 (https://gitlab.com/shnewto/cmudict.git?branch=fix/update-reqwest-version#d8f5adf5) [INFO] [stderr] Checking clap v3.0.0-beta.1 [INFO] [stderr] Checking haiku-generator v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::prelude::*` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:20:24 [INFO] [stdout] | [INFO] [stdout] 20 | use rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::SystemTime` [INFO] [stdout] --> src/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use std::time::SystemTime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude::*` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:20:24 [INFO] [stdout] | [INFO] [stdout] 20 | use rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::SystemTime` [INFO] [stdout] --> src/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use std::time::SystemTime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 132 | / break [INFO] [stdout] 133 | | //reset [INFO] [stdout] 134 | | sum = 0; [INFO] [stdout] | |___________________- any code following this expression is unreachable [INFO] [stdout] 135 | keys = vec![]; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:135:13 [INFO] [stdout] | [INFO] [stdout] 132 | / break [INFO] [stdout] 133 | | //reset [INFO] [stdout] 134 | | sum = 0; [INFO] [stdout] | |___________________- any code following this expression is unreachable [INFO] [stdout] 135 | keys = vec![]; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rng` [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut rng = thread_rng(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `sum` is never read [INFO] [stdout] --> src/main.rs:134:13 [INFO] [stdout] | [INFO] [stdout] 134 | sum = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rng` [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut rng = thread_rng(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `sum` is never read [INFO] [stdout] --> src/main.rs:134:13 [INFO] [stdout] | [INFO] [stdout] 134 | sum = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut rng = thread_rng(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let mut rng = thread_rng(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_from_token` [INFO] [stdout] --> src/markov.rs:119:12 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn generate_from_token(&self, token: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/markov.rs:143:12 [INFO] [stdout] | [INFO] [stdout] 143 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_for` [INFO] [stdout] --> src/markov.rs:148:12 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `graph` [INFO] [stdout] --> src/markov.rs:153:12 [INFO] [stdout] | [INFO] [stdout] 153 | pub fn graph(&self) -> Graph>, f64> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `feed_file` [INFO] [stdout] --> src/markov.rs:236:12 [INFO] [stdout] | [INFO] [stdout] 236 | pub fn feed_file>(&mut self, path: P) -> Result<&mut Chain> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `vec_to_string` [INFO] [stdout] --> src/markov.rs:251:8 [INFO] [stdout] | [INFO] [stdout] 251 | fn vec_to_string(vec: Vec) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_str` [INFO] [stdout] --> src/markov.rs:265:12 [INFO] [stdout] | [INFO] [stdout] 265 | pub fn generate_str(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_str_from_token` [INFO] [stdout] --> src/markov.rs:271:12 [INFO] [stdout] | [INFO] [stdout] 271 | pub fn generate_str_from_token(&self, string: &str) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `str_iter` [INFO] [stdout] --> src/markov.rs:276:12 [INFO] [stdout] | [INFO] [stdout] 276 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `str_iter_for` [INFO] [stdout] --> src/markov.rs:282:12 [INFO] [stdout] | [INFO] [stdout] 282 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SizedChainStringIterator` [INFO] [stdout] --> src/markov.rs:289:1 [INFO] [stdout] | [INFO] [stdout] 289 | / pub type SizedChainStringIterator<'a> = [INFO] [stdout] 290 | | Map, fn(Vec) -> String>; [INFO] [stdout] | |___________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `InfiniteChainStringIterator` [INFO] [stdout] --> src/markov.rs:318:1 [INFO] [stdout] | [INFO] [stdout] 318 | / pub type InfiniteChainStringIterator<'a> = [INFO] [stdout] 319 | | Map, fn(Vec) -> String>; [INFO] [stdout] | |______________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_from_token` [INFO] [stdout] --> src/markov.rs:119:12 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn generate_from_token(&self, token: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/markov.rs:143:12 [INFO] [stdout] | [INFO] [stdout] 143 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_for` [INFO] [stdout] --> src/markov.rs:148:12 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `graph` [INFO] [stdout] --> src/markov.rs:153:12 [INFO] [stdout] | [INFO] [stdout] 153 | pub fn graph(&self) -> Graph>, f64> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `feed_file` [INFO] [stdout] --> src/markov.rs:236:12 [INFO] [stdout] | [INFO] [stdout] 236 | pub fn feed_file>(&mut self, path: P) -> Result<&mut Chain> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `vec_to_string` [INFO] [stdout] --> src/markov.rs:251:8 [INFO] [stdout] | [INFO] [stdout] 251 | fn vec_to_string(vec: Vec) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_str` [INFO] [stdout] --> src/markov.rs:265:12 [INFO] [stdout] | [INFO] [stdout] 265 | pub fn generate_str(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `generate_str_from_token` [INFO] [stdout] --> src/markov.rs:271:12 [INFO] [stdout] | [INFO] [stdout] 271 | pub fn generate_str_from_token(&self, string: &str) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `str_iter` [INFO] [stdout] --> src/markov.rs:276:12 [INFO] [stdout] | [INFO] [stdout] 276 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `str_iter_for` [INFO] [stdout] --> src/markov.rs:282:12 [INFO] [stdout] | [INFO] [stdout] 282 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `SizedChainStringIterator` [INFO] [stdout] --> src/markov.rs:289:1 [INFO] [stdout] | [INFO] [stdout] 289 | / pub type SizedChainStringIterator<'a> = [INFO] [stdout] 290 | | Map, fn(Vec) -> String>; [INFO] [stdout] | |___________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `InfiniteChainStringIterator` [INFO] [stdout] --> src/markov.rs:318:1 [INFO] [stdout] | [INFO] [stdout] 318 | / pub type InfiniteChainStringIterator<'a> = [INFO] [stdout] 319 | | Map, fn(Vec) -> String>; [INFO] [stdout] | |______________________________________________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 22s [INFO] running `Command { std: "docker" "inspect" "4131b953f9e7eee443c0978bde4e0e84cffad290fbc5b646df54289d911a2667", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4131b953f9e7eee443c0978bde4e0e84cffad290fbc5b646df54289d911a2667", kill_on_drop: false }` [INFO] [stdout] 4131b953f9e7eee443c0978bde4e0e84cffad290fbc5b646df54289d911a2667