[INFO] crate polka 0.1.2 is already in cache
[INFO] extracting crate polka 0.1.2 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/polka/0.1.2
[INFO] extracting crate polka 0.1.2 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/polka/0.1.2
[INFO] validating manifest of polka-0.1.2 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of polka-0.1.2 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing polka-0.1.2
[INFO] finished frobbing polka-0.1.2
[INFO] frobbed toml for polka-0.1.2 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/polka/0.1.2/Cargo.toml
[INFO] started frobbing polka-0.1.2
[INFO] finished frobbing polka-0.1.2
[INFO] frobbed toml for polka-0.1.2 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/polka/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking polka-0.1.2 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/polka/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 606ed78f22993ba7aa88150c76ca3dd3212e999234d636f61859a5c66d0a87da
[INFO] running `"docker" "start" "-a" "606ed78f22993ba7aa88150c76ca3dd3212e999234d636f61859a5c66d0a87da"`
[INFO] [stderr]     Checking pom v3.0.2
[INFO] [stderr]     Checking polka v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `list`
[INFO] [stderr]  --> src/parser/statement.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pom::parser::{list, sym, Parser};
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `list`
[INFO] [stderr]  --> src/parser/statement.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pom::parser::{list, sym, Parser};
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_1`
[INFO] [stderr]  --> src/test_fixtures.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn basic_1() -> Graph {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `digraph`
[INFO] [stderr]   --> src/test_fixtures.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn digraph() -> Graph {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/parser/ident.rs:13:38
[INFO] [stderr]    |
[INFO] [stderr] 13 |   alphanum(term) || (term >= 0x80 && term <= 0xFF) || term == 0x5F
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/lib.rs:75:14
[INFO] [stderr]    |
[INFO] [stderr] 75 |           Ok(r) => (),
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/parser/ident.rs:13:38
[INFO] [stderr]    |
[INFO] [stderr] 13 |   alphanum(term) || (term >= 0x80 && term <= 0xFF) || term == 0x5F
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `"docker" "inspect" "606ed78f22993ba7aa88150c76ca3dd3212e999234d636f61859a5c66d0a87da"`
[INFO] running `"docker" "rm" "-f" "606ed78f22993ba7aa88150c76ca3dd3212e999234d636f61859a5c66d0a87da"`
[INFO] [stdout] 606ed78f22993ba7aa88150c76ca3dd3212e999234d636f61859a5c66d0a87da