[INFO] fetching crate wordcloud-rs 0.1.17...
[INFO] checking wordcloud-rs-0.1.17 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate wordcloud-rs 0.1.17 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wordcloud-rs 0.1.17
[INFO] finished tweaking crates.io crate wordcloud-rs 0.1.17
[INFO] tweaked toml for crates.io crate wordcloud-rs 0.1.17 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wordcloud-rs 0.1.17 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 187 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 0d8ec48ee3b1c4dee9fb3108655a879bff4f1b4953d25a7a882130fd709cd0a1
[INFO] running `Command { std: "docker" "start" "-a" "0d8ec48ee3b1c4dee9fb3108655a879bff4f1b4953d25a7a882130fd709cd0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d8ec48ee3b1c4dee9fb3108655a879bff4f1b4953d25a7a882130fd709cd0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8ec48ee3b1c4dee9fb3108655a879bff4f1b4953d25a7a882130fd709cd0a1", kill_on_drop: false }`
[INFO] [stdout] 0d8ec48ee3b1c4dee9fb3108655a879bff4f1b4953d25a7a882130fd709cd0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97394d866591c4924c270cf342a24f1dd96d579e3db25b1ba28e2d3f4384ca74
[INFO] running `Command { std: "docker" "start" "-a" "97394d866591c4924c270cf342a24f1dd96d579e3db25b1ba28e2d3f4384ca74", kill_on_drop: false }`
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[INFO] [stderr]     Checking wordcloud-rs v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Itertools`
[INFO] [stdout]  --> src/text.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::{enumerate, Itertools};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Itertools`
[INFO] [stdout]  --> src/text.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::{enumerate, Itertools};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indexes` is never read
[INFO] [stdout]   --> src/indexed_chars.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct IndexedChars {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 16 |     pub indexes: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_collison_map` is never used
[INFO] [stdout]   --> src/wordcloud.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl WorldCloud {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn display_collison_map(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_multiple` is never used
[INFO] [stdout]  --> src/util.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn next_multiple(x: usize, m: usize) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits` is never used
[INFO] [stdout]  --> src/util.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn bits(v: usize) -> [usize; usize::BITS as usize] {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_display` is never used
[INFO] [stdout]   --> src/collision_map.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl CollisionMap {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn get_display(&self, resolution: u32) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indexes` is never read
[INFO] [stdout]   --> src/indexed_chars.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct IndexedChars {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 16 |     pub indexes: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_collison_map` is never used
[INFO] [stdout]   --> src/wordcloud.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl WorldCloud {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn display_collison_map(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_multiple` is never used
[INFO] [stdout]  --> src/util.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn next_multiple(x: usize, m: usize) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits` is never used
[INFO] [stdout]  --> src/util.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn bits(v: usize) -> [usize; usize::BITS as usize] {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_display` is never used
[INFO] [stdout]   --> src/collision_map.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl CollisionMap {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn get_display(&self, resolution: u32) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.81s
[INFO] running `Command { std: "docker" "inspect" "97394d866591c4924c270cf342a24f1dd96d579e3db25b1ba28e2d3f4384ca74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97394d866591c4924c270cf342a24f1dd96d579e3db25b1ba28e2d3f4384ca74", kill_on_drop: false }`
[INFO] [stdout] 97394d866591c4924c270cf342a24f1dd96d579e3db25b1ba28e2d3f4384ca74