[INFO] cloning repository https://github.com/mahmudsudo/rust-coding-problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahmudsudo/rust-coding-problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Frust-coding-problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Frust-coding-problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42288ce6750ef3d49f3805994a8b7e8a0154eb6a
[INFO] testing mahmudsudo/rust-coding-problems against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahmudsudo%2Frust-coding-problems" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mahmudsudo/rust-coding-problems
[INFO] finished tweaking git repo https://github.com/mahmudsudo/rust-coding-problems
[INFO] tweaked toml for git repo https://github.com/mahmudsudo/rust-coding-problems written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mahmudsudo/rust-coding-problems on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mahmudsudo/rust-coding-problems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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_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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50165802eaee04cafabeaecc4ecb480bba40593cc3d12475ae9c088c1ff0d4fc
[INFO] running `Command { std: "docker" "start" "-a" "50165802eaee04cafabeaecc4ecb480bba40593cc3d12475ae9c088c1ff0d4fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50165802eaee04cafabeaecc4ecb480bba40593cc3d12475ae9c088c1ff0d4fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50165802eaee04cafabeaecc4ecb480bba40593cc3d12475ae9c088c1ff0d4fc", kill_on_drop: false }`
[INFO] [stdout] 50165802eaee04cafabeaecc4ecb480bba40593cc3d12475ae9c088c1ff0d4fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d45f5b12f9263312a7f854f7147f629612a2f5e2ce2d26058748a067a43787b4
[INFO] running `Command { std: "docker" "start" "-a" "d45f5b12f9263312a7f854f7147f629612a2f5e2ce2d26058748a067a43787b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling revise_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `index` is never read
[INFO] [stdout]   --> src/array.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 | let (mut space_count, mut index, _i)= (0, 0, 0);
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d45f5b12f9263312a7f854f7147f629612a2f5e2ce2d26058748a067a43787b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45f5b12f9263312a7f854f7147f629612a2f5e2ce2d26058748a067a43787b4", kill_on_drop: false }`
[INFO] [stdout] d45f5b12f9263312a7f854f7147f629612a2f5e2ce2d26058748a067a43787b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7ae567a771d56c258fb1652d23339617f3ed474e6b7e86b91ac9243fe5302a2
[INFO] running `Command { std: "docker" "start" "-a" "e7ae567a771d56c258fb1652d23339617f3ed474e6b7e86b91ac9243fe5302a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling revise_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `index` is never read
[INFO] [stdout]   --> src/array.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 | let (mut space_count, mut index, _i)= (0, 0, 0);
[INFO] [stdout]    |                           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "e7ae567a771d56c258fb1652d23339617f3ed474e6b7e86b91ac9243fe5302a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ae567a771d56c258fb1652d23339617f3ed474e6b7e86b91ac9243fe5302a2", kill_on_drop: false }`
[INFO] [stdout] e7ae567a771d56c258fb1652d23339617f3ed474e6b7e86b91ac9243fe5302a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f839bf55aeefa789d67eb3f54c10e852959e1bb98606a8821613a1e427576a61
[INFO] running `Command { std: "docker" "start" "-a" "f839bf55aeefa789d67eb3f54c10e852959e1bb98606a8821613a1e427576a61", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `index` is never read
[INFO] [stderr]   --> src/array.rs:56:27
[INFO] [stderr]    |
[INFO] [stderr] 56 | let (mut space_count, mut index, _i)= (0, 0, 0);
[INFO] [stderr]    |                           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `revise_rust` (bin "revise_rust" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/revise_rust-bd112c082413adba)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f839bf55aeefa789d67eb3f54c10e852959e1bb98606a8821613a1e427576a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f839bf55aeefa789d67eb3f54c10e852959e1bb98606a8821613a1e427576a61", kill_on_drop: false }`
[INFO] [stdout] f839bf55aeefa789d67eb3f54c10e852959e1bb98606a8821613a1e427576a61