[INFO] fetching crate quine-mc_cluskey 0.2.4...
[INFO] testing quine-mc_cluskey-0.2.4 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate quine-mc_cluskey 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate quine-mc_cluskey 0.2.4 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quine-mc_cluskey 0.2.4
[INFO] finished tweaking crates.io crate quine-mc_cluskey 0.2.4
[INFO] tweaked toml for crates.io crate quine-mc_cluskey 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5b9692b06a0ee84bfef456b2cf5232e80ea94262c158bffb6125c968b3327f8
[INFO] running `Command { std: "docker" "start" "-a" "f5b9692b06a0ee84bfef456b2cf5232e80ea94262c158bffb6125c968b3327f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5b9692b06a0ee84bfef456b2cf5232e80ea94262c158bffb6125c968b3327f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b9692b06a0ee84bfef456b2cf5232e80ea94262c158bffb6125c968b3327f8", kill_on_drop: false }`
[INFO] [stdout] f5b9692b06a0ee84bfef456b2cf5232e80ea94262c158bffb6125c968b3327f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79fb6144f8d22827d77ae84028a759e24b564f4ee867b595e1f20537a18959d3
[INFO] running `Command { std: "docker" "start" "-a" "79fb6144f8d22827d77ae84028a759e24b564f4ee867b595e1f20537a18959d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling quine-mc_cluskey v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:243:43
[INFO] [stdout]     |
[INFO] [stdout] 243 |                         And(_) | Or(_) => try!(write!(fmt, "({:?})", a)),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:244:30
[INFO] [stdout]     |
[INFO] [stdout] 244 |                         _ => try!(write!(fmt, "{:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:250:17
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 try!(write!(fmt, "{:?}", a[0]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:253:34
[INFO] [stdout]     |
[INFO] [stdout] 253 |                         Or(_) => try!(write!(fmt, " + ({:?})", a)),
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:254:30
[INFO] [stdout]     |
[INFO] [stdout] 254 |                         _ => try!(write!(fmt, " + {:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:379:21
[INFO] [stdout]     |
[INFO] [stdout] 379 |                     try!(write!(fmt, "0"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:381:21
[INFO] [stdout]     |
[INFO] [stdout] 381 |                     try!(write!(fmt, "1"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |                 try!(write!(fmt, "-"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "79fb6144f8d22827d77ae84028a759e24b564f4ee867b595e1f20537a18959d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79fb6144f8d22827d77ae84028a759e24b564f4ee867b595e1f20537a18959d3", kill_on_drop: false }`
[INFO] [stdout] 79fb6144f8d22827d77ae84028a759e24b564f4ee867b595e1f20537a18959d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 477041e310c71d01692261c9b8c2ae4abdaaa9aab1c667b1236092640958ad98
[INFO] running `Command { std: "docker" "start" "-a" "477041e310c71d01692261c9b8c2ae4abdaaa9aab1c667b1236092640958ad98", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:243:43
[INFO] [stdout]     |
[INFO] [stdout] 243 |                         And(_) | Or(_) => try!(write!(fmt, "({:?})", a)),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quine-mc_cluskey v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:244:30
[INFO] [stdout]     |
[INFO] [stdout] 244 |                         _ => try!(write!(fmt, "{:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:250:17
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 try!(write!(fmt, "{:?}", a[0]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:253:34
[INFO] [stdout]     |
[INFO] [stdout] 253 |                         Or(_) => try!(write!(fmt, " + ({:?})", a)),
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:254:30
[INFO] [stdout]     |
[INFO] [stdout] 254 |                         _ => try!(write!(fmt, " + {:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:379:21
[INFO] [stdout]     |
[INFO] [stdout] 379 |                     try!(write!(fmt, "0"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:381:21
[INFO] [stdout]     |
[INFO] [stdout] 381 |                     try!(write!(fmt, "1"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |                 try!(write!(fmt, "-"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:243:43
[INFO] [stdout]     |
[INFO] [stdout] 243 |                         And(_) | Or(_) => try!(write!(fmt, "({:?})", a)),
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:244:30
[INFO] [stdout]     |
[INFO] [stdout] 244 |                         _ => try!(write!(fmt, "{:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:250:17
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 try!(write!(fmt, "{:?}", a[0]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:253:34
[INFO] [stdout]     |
[INFO] [stdout] 253 |                         Or(_) => try!(write!(fmt, " + ({:?})", a)),
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:254:30
[INFO] [stdout]     |
[INFO] [stdout] 254 |                         _ => try!(write!(fmt, " + {:?}", a)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:379:21
[INFO] [stdout]     |
[INFO] [stdout] 379 |                     try!(write!(fmt, "0"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:381:21
[INFO] [stdout]     |
[INFO] [stdout] 381 |                     try!(write!(fmt, "1"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |                 try!(write!(fmt, "-"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "477041e310c71d01692261c9b8c2ae4abdaaa9aab1c667b1236092640958ad98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "477041e310c71d01692261c9b8c2ae4abdaaa9aab1c667b1236092640958ad98", kill_on_drop: false }`
[INFO] [stdout] 477041e310c71d01692261c9b8c2ae4abdaaa9aab1c667b1236092640958ad98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d36c8cba8c53ea9599e183bde8508a084e51b2faf6994898c2a03cee90560d56
[INFO] running `Command { std: "docker" "start" "-a" "d36c8cba8c53ea9599e183bde8508a084e51b2faf6994898c2a03cee90560d56", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:243:43
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 243 |                         And(_) | Or(_) => try!(write!(fmt, "({:?})", a)),
[INFO] [stdout] 
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:244:30
[INFO] [stderr]     |
[INFO] [stderr] 244 |                         _ => try!(write!(fmt, "{:?}", a)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:250:17
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 try!(write!(fmt, "{:?}", a[0]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:253:34
[INFO] [stderr]     |
[INFO] [stderr] 253 |                         Or(_) => try!(write!(fmt, " + ({:?})", a)),
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:30
[INFO] [stderr]     |
[INFO] [stderr] 254 |                         _ => try!(write!(fmt, " + {:?}", a)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:379:21
[INFO] [stderr]     |
[INFO] [stderr] 379 |                     try!(write!(fmt, "0"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:381:21
[INFO] [stderr]     |
[INFO] [stderr] 381 |                     try!(write!(fmt, "1"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 try!(write!(fmt, "-"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:243:43
[INFO] [stderr]     |
[INFO] [stderr] 243 |                         And(_) | Or(_) => try!(write!(fmt, "({:?})", a)),
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:244:30
[INFO] [stderr]     |
[INFO] [stderr] 244 |                         _ => try!(write!(fmt, "{:?}", a)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:250:17
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 try!(write!(fmt, "{:?}", a[0]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:253:34
[INFO] [stderr]     |
[INFO] [stderr] 253 |                         Or(_) => try!(write!(fmt, " + ({:?})", a)),
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:30
[INFO] [stderr]     |
[INFO] [stderr] 254 |                         _ => try!(write!(fmt, " + {:?}", a)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:379:21
[INFO] [stderr]     |
[INFO] [stderr] 379 |                     try!(write!(fmt, "0"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:381:21
[INFO] [stderr]     |
[INFO] [stderr] 381 |                     try!(write!(fmt, "1"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 try!(write!(fmt, "-"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/quine_mc_cluskey-8cd1a256aa70a96d)
[INFO] [stderr]    Doc-tests quine-mc_cluskey
[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" "d36c8cba8c53ea9599e183bde8508a084e51b2faf6994898c2a03cee90560d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36c8cba8c53ea9599e183bde8508a084e51b2faf6994898c2a03cee90560d56", kill_on_drop: false }`
[INFO] [stdout] d36c8cba8c53ea9599e183bde8508a084e51b2faf6994898c2a03cee90560d56