[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] c5fdecca1b7cd2904b796fae1c987dcac1879264
[INFO] checking ColonelPhantom/hufmark against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FColonelPhantom%2Fhufmark" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  59% (13/22)   
Checking out files:  63% (14/22)   
Checking out files:  68% (15/22)   
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Checking out files:  77% (17/22)   
Checking out files:  81% (18/22)   
Checking out files:  86% (19/22)   
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Checking out files: 100% (22/22)   
Checking out files: 100% (22/22), done.
[INFO] validating manifest of git repo https://github.com/ColonelPhantom/hufmark on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-12/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" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 88a7daaa831ed2ea7ecdf1615c0efb81a8e69a1dbbafc205b6ddd41618373f09
[INFO] running `"docker" "start" "-a" "88a7daaa831ed2ea7ecdf1615c0efb81a8e69a1dbbafc205b6ddd41618373f09"`
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking smallvec-stableunion v0.6.10
[INFO] [stderr]     Checking bitbit v0.2.0
[INFO] [stderr]     Checking fenwick v0.2.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking arcode v0.1.2
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking plain-map v2.0.0
[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: method is never used: `get_entry_occs`
[INFO] [stderr]    --> src/markov.rs:241:5
[INFO] [stderr]     |
[INFO] [stderr] 241 |     pub fn get_entry_occs(&self) -> std::collections::BTreeMap<u32, u32> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_entry_lens`
[INFO] [stderr]    --> src/markov.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     pub fn get_entry_lens(&self) -> std::collections::BTreeMap<usize, u32> {
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_entry_occs`
[INFO] [stderr]    --> src/markov.rs:241:5
[INFO] [stderr]     |
[INFO] [stderr] 241 |     pub fn get_entry_occs(&self) -> std::collections::BTreeMap<u32, u32> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_entry_lens`
[INFO] [stderr]    --> src/markov.rs:248:5
[INFO] [stderr]     |
[INFO] [stderr] 248 |     pub fn get_entry_lens(&self) -> std::collections::BTreeMap<usize, u32> {
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.21s
[INFO] running `"docker" "inspect" "88a7daaa831ed2ea7ecdf1615c0efb81a8e69a1dbbafc205b6ddd41618373f09"`
[INFO] running `"docker" "rm" "-f" "88a7daaa831ed2ea7ecdf1615c0efb81a8e69a1dbbafc205b6ddd41618373f09"`
[INFO] [stdout] 88a7daaa831ed2ea7ecdf1615c0efb81a8e69a1dbbafc205b6ddd41618373f09