[INFO] cloning repository https://github.com/MarkGhebrial/zognorp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarkGhebrial/zognorp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkGhebrial%2Fzognorp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkGhebrial%2Fzognorp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2961d9cb6d6483016bdca259becfa73083579aa7
[INFO] checking MarkGhebrial/zognorp against try#ac4c3613be2acd5395b65d85e5657b81e3c982f0 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkGhebrial%2Fzognorp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MarkGhebrial/zognorp
[INFO] finished tweaking git repo https://github.com/MarkGhebrial/zognorp
[INFO] tweaked toml for git repo https://github.com/MarkGhebrial/zognorp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MarkGhebrial/zognorp on toolchain ac4c3613be2acd5395b65d85e5657b81e3c982f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MarkGhebrial/zognorp 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" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 098f2c20d6ecc8137c281a7ff070b80ff2edafbd77bcfd1e7e4b02442ce6996f
[INFO] running `Command { std: "docker" "start" "-a" "098f2c20d6ecc8137c281a7ff070b80ff2edafbd77bcfd1e7e4b02442ce6996f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "098f2c20d6ecc8137c281a7ff070b80ff2edafbd77bcfd1e7e4b02442ce6996f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098f2c20d6ecc8137c281a7ff070b80ff2edafbd77bcfd1e7e4b02442ce6996f", kill_on_drop: false }`
[INFO] [stdout] 098f2c20d6ecc8137c281a7ff070b80ff2edafbd77bcfd1e7e4b02442ce6996f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ac4c3613be2acd5395b65d85e5657b81e3c982f0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a8a81cdaa77441db700f1a28649fc86f832b1a7814445310c14927473f6573
[INFO] running `Command { std: "docker" "start" "-a" "a5a8a81cdaa77441db700f1a28649fc86f832b1a7814445310c14927473f6573", kill_on_drop: false }`
[INFO] [stderr]     Checking zognorp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/solver.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     puzzle::{self, Cell, Puzzle},
[INFO] [stdout]   |              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/solver.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     puzzle::{self, Cell, Puzzle},
[INFO] [stdout]   |              ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Ok(p) => println!("Found a solution!"),
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/solver.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     DeadEnd(Puzzle),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     DeadEnd(Puzzle),
[INFO] [stdout] 15 +     DeadEnd(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidRow`, `InvalidColumn`, and `InvalidBlock` are never constructed
[INFO] [stdout]   --> src/solver.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum SolverError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 12 |     InvalidRow(usize),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     InvalidColumn(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 14 |     InvalidBlock(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Ok(p) => println!("Found a solution!"),
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/solver.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     DeadEnd(Puzzle),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -     DeadEnd(Puzzle),
[INFO] [stdout] 15 +     DeadEnd(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidRow`, `InvalidColumn`, and `InvalidBlock` are never constructed
[INFO] [stdout]   --> src/solver.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum SolverError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 12 |     InvalidRow(usize),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     InvalidColumn(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 14 |     InvalidBlock(usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "a5a8a81cdaa77441db700f1a28649fc86f832b1a7814445310c14927473f6573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a8a81cdaa77441db700f1a28649fc86f832b1a7814445310c14927473f6573", kill_on_drop: false }`
[INFO] [stdout] a5a8a81cdaa77441db700f1a28649fc86f832b1a7814445310c14927473f6573