[INFO] fetching crate toolkit 0.1.1...
[INFO] extracting crate toolkit 0.1.1 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/toolkit/0.1.1
[INFO] extracting crate toolkit 0.1.1 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/toolkit/0.1.1
[INFO] validating manifest of toolkit-0.1.1 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of toolkit-0.1.1 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing toolkit-0.1.1
[INFO] finished frobbing toolkit-0.1.1
[INFO] frobbed toml for toolkit-0.1.1 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/toolkit/0.1.1/Cargo.toml
[INFO] started frobbing toolkit-0.1.1
[INFO] finished frobbing toolkit-0.1.1
[INFO] frobbed toml for toolkit-0.1.1 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/toolkit/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking toolkit-0.1.1 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/toolkit/0.1.1:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c17bee5627129bc65d4508e8f61ad9f3ae6e2c0b3c20358eb7defc783ad7d2ea
[INFO] running `"docker" "start" "-a" "c17bee5627129bc65d4508e8f61ad9f3ae6e2c0b3c20358eb7defc783ad7d2ea"`
[INFO] [stderr]     Checking toolkit v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/number.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fs`, `io`
[INFO] [stderr]  --> src/path.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, fs, io};
[INFO] [stderr]   |                ^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/number.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `fs`, `io`
[INFO] [stderr]  --> src/path.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{env, fs, io};
[INFO] [stderr]   |                ^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `has_negative` is assigned to, but never used
[INFO] [stderr]   --> src/number.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut has_negative = false;
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_has_negative` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `has_negative` is never read
[INFO] [stderr]   --> src/number.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |       has_negative = true;
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `has_negative` is assigned to, but never used
[INFO] [stderr]   --> src/number.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut has_negative = false;
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_has_negative` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `has_negative` is never read
[INFO] [stderr]   --> src/number.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |       has_negative = true;
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "c17bee5627129bc65d4508e8f61ad9f3ae6e2c0b3c20358eb7defc783ad7d2ea"`
[INFO] running `"docker" "rm" "-f" "c17bee5627129bc65d4508e8f61ad9f3ae6e2c0b3c20358eb7defc783ad7d2ea"`
[INFO] [stdout] c17bee5627129bc65d4508e8f61ad9f3ae6e2c0b3c20358eb7defc783ad7d2ea