[INFO] cloning repository yati-sagade/exprolution
[INFO] running `"git" "clone" "--bare" "git://github.com/yati-sagade/exprolution.git" "work/cache/sources/gh/yati-sagade/exprolution"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/yati-sagade/exprolution'...
[INFO] running `"git" "clone" "work/cache/sources/gh/yati-sagade/exprolution" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/yati-sagade/exprolution"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/yati-sagade/exprolution'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yati-sagade/exprolution" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/yati-sagade/exprolution"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/yati-sagade/exprolution'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 83ace1a475a124e94f28b55902b171ba92e2851d
[INFO] sha for GitHub repo yati-sagade/exprolution: 83ace1a475a124e94f28b55902b171ba92e2851d
[INFO] validating manifest of yati-sagade/exprolution on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yati-sagade/exprolution on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yati-sagade/exprolution
[INFO] finished frobbing yati-sagade/exprolution
[INFO] frobbed toml for yati-sagade/exprolution written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/yati-sagade/exprolution/Cargo.toml
[INFO] started frobbing yati-sagade/exprolution
[INFO] finished frobbing yati-sagade/exprolution
[INFO] frobbed toml for yati-sagade/exprolution written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/yati-sagade/exprolution/Cargo.toml
[INFO] crate yati-sagade/exprolution already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/yati-sagade/exprolution/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-vec v0.6.1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking yati-sagade/exprolution against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/yati-sagade/exprolution:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f255b7efc67a25c6531ef38aa3239a810506709a26d21eaebde93c4f6ec04f2c
[INFO] running `"docker" "start" "-a" "f255b7efc67a25c6531ef38aa3239a810506709a26d21eaebde93c4f6ec04f2c"`
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]     Checking exprolution v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/genetic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/genetic.rs:41:11
[INFO] [stderr]    |
[INFO] [stderr] 41 |     while (n > 0) {
[INFO] [stderr]    |           ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/genetic.rs:65:11
[INFO] [stderr]    |
[INFO] [stderr] 65 |         0 ... 9 => n.to_string(),
[INFO] [stderr]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/genetic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/genetic.rs:41:11
[INFO] [stderr]    |
[INFO] [stderr] 41 |     while (n > 0) {
[INFO] [stderr]    |           ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/genetic.rs:65:11
[INFO] [stderr]    |
[INFO] [stderr] 65 |         0 ... 9 => n.to_string(),
[INFO] [stderr]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/expr.rs:189:22
[INFO] [stderr]     |
[INFO] [stderr] 189 |             Tok::Num(n) => post.push(token.clone()),
[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: `i`
[INFO] [stderr]    --> src/genetic.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |     for i in 0..popsize {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/expr.rs:189:22
[INFO] [stderr]     |
[INFO] [stderr] 189 |             Tok::Num(n) => post.push(token.clone()),
[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: `i`
[INFO] [stderr]    --> src/genetic.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |     for i in 0..popsize {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "f255b7efc67a25c6531ef38aa3239a810506709a26d21eaebde93c4f6ec04f2c"`
[INFO] running `"docker" "rm" "-f" "f255b7efc67a25c6531ef38aa3239a810506709a26d21eaebde93c4f6ec04f2c"`
[INFO] [stdout] f255b7efc67a25c6531ef38aa3239a810506709a26d21eaebde93c4f6ec04f2c