[INFO] cloning repository https://github.com/ColonelPhantom/hufmark [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ColonelPhantom/hufmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Fhufmark"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Fhufmark'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 335366c2a08914a67974d7c48e167fb806823c2d [INFO] checking ColonelPhantom/hufmark against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Fhufmark" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] [stderr] Checking out files: 61% (13/21) Checking out files: 66% (14/21) Checking out files: 71% (15/21) Checking out files: 76% (16/21) Checking out files: 80% (17/21) Checking out files: 85% (18/21) Checking out files: 90% (19/21) Checking out files: 95% (20/21) Checking out files: 100% (21/21) Checking out files: 100% (21/21), done. [INFO] validating manifest of git repo https://github.com/ColonelPhantom/hufmark on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ColonelPhantom/hufmark [INFO] finished tweaking git repo https://github.com/ColonelPhantom/hufmark [INFO] tweaked toml for git repo https://github.com/ColonelPhantom/hufmark written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/ColonelPhantom/hufmark already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4dfcab62d6241c39701aa3e72475b4bbbb59812cc138e579d97ca5acf60ec766 [INFO] running `"docker" "start" "-a" "4dfcab62d6241c39701aa3e72475b4bbbb59812cc138e579d97ca5acf60ec766"` [INFO] [stderr] Compiling libc v0.2.61 [INFO] [stderr] Checking plain-map v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking slice-deque v0.2.4 [INFO] [stderr] Compiling derivative v1.0.3 [INFO] [stderr] Checking hufmark v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `vec` [INFO] [stderr] --> src/markov.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | let vec: Vec<_> = p.possibilities.iter().filter(|(_,v)| *v > 0).collect(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_vec` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/markov.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 119 | let mut p = &mut MarkovValue::new(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/markov.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_entry_occs` [INFO] [stderr] --> src/markov.rs:153:5 [INFO] [stderr] | [INFO] [stderr] 153 | pub fn get_entry_occs(&self) -> std::collections::BTreeMap { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_entry_lens` [INFO] [stderr] --> src/markov.rs:160:5 [INFO] [stderr] | [INFO] [stderr] 160 | pub fn get_entry_lens(&self) -> std::collections::BTreeMap { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get` [INFO] [stderr] --> src/history.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn get(&self, idx: usize) -> Option<&T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `vec` [INFO] [stderr] --> src/markov.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | let vec: Vec<_> = p.possibilities.iter().filter(|(_,v)| *v > 0).collect(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_vec` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/markov.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 119 | let mut p = &mut MarkovValue::new(); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/markov.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_entry_occs` [INFO] [stderr] --> src/markov.rs:153:5 [INFO] [stderr] | [INFO] [stderr] 153 | pub fn get_entry_occs(&self) -> std::collections::BTreeMap { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_entry_lens` [INFO] [stderr] --> src/markov.rs:160:5 [INFO] [stderr] | [INFO] [stderr] 160 | pub fn get_entry_lens(&self) -> std::collections::BTreeMap { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get` [INFO] [stderr] --> src/history.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn get(&self, idx: usize) -> Option<&T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 22.75s [INFO] running `"docker" "inspect" "4dfcab62d6241c39701aa3e72475b4bbbb59812cc138e579d97ca5acf60ec766"` [INFO] running `"docker" "rm" "-f" "4dfcab62d6241c39701aa3e72475b4bbbb59812cc138e579d97ca5acf60ec766"` [INFO] [stdout] 4dfcab62d6241c39701aa3e72475b4bbbb59812cc138e579d97ca5acf60ec766