[INFO] updating cached repository natir/mapping2barcode
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/natir/mapping2barcode
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/natir/mapping2barcode" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/natir/mapping2barcode"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/natir/mapping2barcode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/natir/mapping2barcode" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/natir/mapping2barcode"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/natir/mapping2barcode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b3f5968927e2e5ecd3dad1fbb1e112b602e96975
[INFO] sha for GitHub repo natir/mapping2barcode: b3f5968927e2e5ecd3dad1fbb1e112b602e96975
[INFO] validating manifest of natir/mapping2barcode on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of natir/mapping2barcode on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing natir/mapping2barcode
[INFO] finished frobbing natir/mapping2barcode
[INFO] frobbed toml for natir/mapping2barcode written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/natir/mapping2barcode/Cargo.toml
[INFO] started frobbing natir/mapping2barcode
[INFO] finished frobbing natir/mapping2barcode
[INFO] frobbed toml for natir/mapping2barcode written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/natir/mapping2barcode/Cargo.toml
[INFO] crate natir/mapping2barcode already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking natir/mapping2barcode against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/natir/mapping2barcode:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fde9cea6c4a7425dd71d84cef5c360973e5856bb9ffb459281940402876bf44f
[INFO] running `"docker" "start" "-a" "fde9cea6c4a7425dd71d84cef5c360973e5856bb9ffb459281940402876bf44f"`
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]    Compiling bv v0.7.4
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling lzma-sys v0.1.11
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking itertools-num v0.1.2
[INFO] [stderr]    Compiling syn v0.15.14
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serde v1.0.80
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking bio v0.20.3
[INFO] [stderr]     Checking mapping2barcodegraph v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `petgraph::visit::IntoNodeReferences`
[INFO] [stderr]  --> src/premolecule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use petgraph::visit::IntoNodeReferences;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `petgraph::visit::IntoNodeReferences`
[INFO] [stderr]  --> src/premolecule.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use petgraph::visit::IntoNodeReferences;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/premolecule.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut n = 0;
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/premolecule.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut n = 0;
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_n`
[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/premolecule.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut n = 0;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/premolecule.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut n = 0;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 46.15s
[INFO] running `"docker" "inspect" "fde9cea6c4a7425dd71d84cef5c360973e5856bb9ffb459281940402876bf44f"`
[INFO] running `"docker" "rm" "-f" "fde9cea6c4a7425dd71d84cef5c360973e5856bb9ffb459281940402876bf44f"`
[INFO] [stdout] fde9cea6c4a7425dd71d84cef5c360973e5856bb9ffb459281940402876bf44f