[INFO] cloning repository https://github.com/mhn1991/dpll
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mhn1991/dpll" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90d057d58e92863dbdf0cecda8a5982e068b993d
[INFO] testing mhn1991/dpll against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhn1991%2Fdpll" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhn1991/dpll on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mhn1991/dpll
[INFO] finished tweaking git repo https://github.com/mhn1991/dpll
[INFO] tweaked toml for git repo https://github.com/mhn1991/dpll written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/mhn1991/dpll already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcfb6a601f4872da237dcb2375dc4296bc800bcc26497484ae8d220c893af978
[INFO] running `Command { std: "docker" "start" "-a" "bcfb6a601f4872da237dcb2375dc4296bc800bcc26497484ae8d220c893af978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcfb6a601f4872da237dcb2375dc4296bc800bcc26497484ae8d220c893af978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfb6a601f4872da237dcb2375dc4296bc800bcc26497484ae8d220c893af978", kill_on_drop: false }`
[INFO] [stdout] bcfb6a601f4872da237dcb2375dc4296bc800bcc26497484ae8d220c893af978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d821a7e63d147175e3184cd9858145ab9ab30ce45cd408ec98dccf967949229
[INFO] running `Command { std: "docker" "start" "-a" "0d821a7e63d147175e3184cd9858145ab9ab30ce45cd408ec98dccf967949229", kill_on_drop: false }`
[INFO] [stderr]    Compiling dpll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `int`
[INFO] [stdout]   --> src/dimacs.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   Ok(int) =>{
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/formula/clause/literal.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     value: Option<bool>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "0d821a7e63d147175e3184cd9858145ab9ab30ce45cd408ec98dccf967949229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d821a7e63d147175e3184cd9858145ab9ab30ce45cd408ec98dccf967949229", kill_on_drop: false }`
[INFO] [stdout] 0d821a7e63d147175e3184cd9858145ab9ab30ce45cd408ec98dccf967949229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b08c3beba03a651127771d5e415700a350e4d9da8dfe9ba08d25f001ed87168
[INFO] running `Command { std: "docker" "start" "-a" "8b08c3beba03a651127771d5e415700a350e4d9da8dfe9ba08d25f001ed87168", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dpll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `int`
[INFO] [stdout]   --> src/dimacs.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   Ok(int) =>{
[INFO] [stdout]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/formula/clause/literal.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     value: Option<bool>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "8b08c3beba03a651127771d5e415700a350e4d9da8dfe9ba08d25f001ed87168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b08c3beba03a651127771d5e415700a350e4d9da8dfe9ba08d25f001ed87168", kill_on_drop: false }`
[INFO] [stdout] 8b08c3beba03a651127771d5e415700a350e4d9da8dfe9ba08d25f001ed87168
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ed89e8793c9d03d5389d0afdafc859a49705586fe76d730baf655a59e5fc60f
[INFO] running `Command { std: "docker" "start" "-a" "7ed89e8793c9d03d5389d0afdafc859a49705586fe76d730baf655a59e5fc60f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]   --> src/dimacs.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | ...                   Ok(int) =>{
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]  --> src/formula/clause/literal.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     value: Option<bool>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dpll` (bin "dpll" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.39s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dpll-0b36db8a6c3e387e)
[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" "7ed89e8793c9d03d5389d0afdafc859a49705586fe76d730baf655a59e5fc60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed89e8793c9d03d5389d0afdafc859a49705586fe76d730baf655a59e5fc60f", kill_on_drop: false }`
[INFO] [stdout] 7ed89e8793c9d03d5389d0afdafc859a49705586fe76d730baf655a59e5fc60f