[INFO] cloning repository https://github.com/ThatOtherPerson/forth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThatOtherPerson/forth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatOtherPerson%2Fforth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatOtherPerson%2Fforth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f2eb40633f3710e75ca391e9c7055a695ea1c31
[INFO] testing ThatOtherPerson/forth against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatOtherPerson%2Fforth" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThatOtherPerson/forth 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 git repo https://github.com/ThatOtherPerson/forth
[INFO] finished tweaking git repo https://github.com/ThatOtherPerson/forth
[INFO] tweaked toml for git repo https://github.com/ThatOtherPerson/forth written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ThatOtherPerson/forth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6941a9cc17af15a9e8ae741ed4dc692da387c5488e2fc456e4635c0e5057396b
[INFO] running `Command { std: "docker" "start" "-a" "6941a9cc17af15a9e8ae741ed4dc692da387c5488e2fc456e4635c0e5057396b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6941a9cc17af15a9e8ae741ed4dc692da387c5488e2fc456e4635c0e5057396b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6941a9cc17af15a9e8ae741ed4dc692da387c5488e2fc456e4635c0e5057396b", kill_on_drop: false }`
[INFO] [stdout] 6941a9cc17af15a9e8ae741ed4dc692da387c5488e2fc456e4635c0e5057396b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 52c002117c967dd435fe164dd9b3e346a1e496a66eb54b136f0c68bb1a27b0c3
[INFO] running `Command { std: "docker" "start" "-a" "52c002117c967dd435fe164dd9b3e346a1e496a66eb54b136f0c68bb1a27b0c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling forth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/stdlib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[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/stdlib.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:82:16
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let name = try!(forth.parse().ok_or(
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/stdlib.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let condition = try!(forth.pop().ok_or("Stack underflow".to_string())) != 0;
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unary_word`
[INFO] [stdout]   --> src/stdlib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "52c002117c967dd435fe164dd9b3e346a1e496a66eb54b136f0c68bb1a27b0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c002117c967dd435fe164dd9b3e346a1e496a66eb54b136f0c68bb1a27b0c3", kill_on_drop: false }`
[INFO] [stdout] 52c002117c967dd435fe164dd9b3e346a1e496a66eb54b136f0c68bb1a27b0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] af76894e340fc9772fbbb1841e6488eb9acd359f5483a6edd19fdd3132a6c70f
[INFO] running `Command { std: "docker" "start" "-a" "af76894e340fc9772fbbb1841e6488eb9acd359f5483a6edd19fdd3132a6c70f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/stdlib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling forth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:82:16
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let name = try!(forth.parse().ok_or(
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/stdlib.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let condition = try!(forth.pop().ok_or("Stack underflow".to_string())) != 0;
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unary_word`
[INFO] [stdout]   --> src/stdlib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/stdlib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[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/stdlib.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stdlib.rs:82:16
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let name = try!(forth.parse().ok_or(
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/stdlib.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let condition = try!(forth.pop().ok_or("Stack underflow".to_string())) != 0;
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unary_word`
[INFO] [stdout]   --> src/stdlib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "af76894e340fc9772fbbb1841e6488eb9acd359f5483a6edd19fdd3132a6c70f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af76894e340fc9772fbbb1841e6488eb9acd359f5483a6edd19fdd3132a6c70f", kill_on_drop: false }`
[INFO] [stdout] af76894e340fc9772fbbb1841e6488eb9acd359f5483a6edd19fdd3132a6c70f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e4ed30507a87d507236cbe5d1276ff8e540d01cdd87adc28b498e2f4e6c96d3a
[INFO] running `Command { std: "docker" "start" "-a" "e4ed30507a87d507236cbe5d1276ff8e540d01cdd87adc28b498e2f4e6c96d3a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> src/stdlib.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[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/stdlib.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:82:16
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let name = try!(forth.parse().ok_or(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/stdlib.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let condition = try!(forth.pop().ok_or("Stack underflow".to_string())) != 0;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unary_word`
[INFO] [stderr]   --> src/stdlib.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> src/stdlib.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[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/stdlib.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let value = try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     try!(forth.pop().ok_or("Stack underflow".to_string()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/stdlib.rs:82:16
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let name = try!(forth.parse().ok_or(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/stdlib.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let condition = try!(forth.pop().ok_or("Stack underflow".to_string())) != 0;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unary_word`
[INFO] [stderr]   --> src/stdlib.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn unary_word<F>(forth: &mut Runtime, callback: F) -> FResult
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/forth-fbd287adca00c240)
[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] [stderr]    Doc-tests forth
[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" "e4ed30507a87d507236cbe5d1276ff8e540d01cdd87adc28b498e2f4e6c96d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ed30507a87d507236cbe5d1276ff8e540d01cdd87adc28b498e2f4e6c96d3a", kill_on_drop: false }`
[INFO] [stdout] e4ed30507a87d507236cbe5d1276ff8e540d01cdd87adc28b498e2f4e6c96d3a