[INFO] fetching crate poi 0.23.0...
[INFO] testing poi-0.23.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate poi 0.23.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate poi 0.23.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate poi 0.23.0
[INFO] finished tweaking crates.io crate poi 0.23.0
[INFO] tweaked toml for crates.io crate poi 0.23.0 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] crate crates.io crate poi 0.23.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded levenshtein v1.0.4
[INFO] [stderr]   Downloaded read_token v1.0.0
[INFO] [stderr]   Downloaded piston_meta v2.0.1
[INFO] [stderr]   Downloaded range v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d8329f2f88d1bc9e7ecbe85cf3cb22580131fa15b3837e06d5b7736910d17a8
[INFO] running `Command { std: "docker" "start" "-a" "1d8329f2f88d1bc9e7ecbe85cf3cb22580131fa15b3837e06d5b7736910d17a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8329f2f88d1bc9e7ecbe85cf3cb22580131fa15b3837e06d5b7736910d17a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8329f2f88d1bc9e7ecbe85cf3cb22580131fa15b3837e06d5b7736910d17a8", kill_on_drop: false }`
[INFO] [stdout] 1d8329f2f88d1bc9e7ecbe85cf3cb22580131fa15b3837e06d5b7736910d17a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c79f93a7e40dfe47c048f177d322b7bf1a4aec9f045c4c3dc895cf94108864b
[INFO] running `Command { std: "docker" "start" "-a" "7c79f93a7e40dfe47c048f177d322b7bf1a4aec9f045c4c3dc895cf94108864b", kill_on_drop: false }`
[INFO] [stderr]    Compiling range v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling read_token v1.0.0
[INFO] [stderr]    Compiling piston_meta v2.0.1
[INFO] [stderr]    Compiling poi v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:291:21
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "7c79f93a7e40dfe47c048f177d322b7bf1a4aec9f045c4c3dc895cf94108864b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c79f93a7e40dfe47c048f177d322b7bf1a4aec9f045c4c3dc895cf94108864b", kill_on_drop: false }`
[INFO] [stdout] 7c79f93a7e40dfe47c048f177d322b7bf1a4aec9f045c4c3dc895cf94108864b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4066344bc65d5b5816bf21297c71c8b9b86e5674efb6b957cdabc5497ec4d44e
[INFO] running `Command { std: "docker" "start" "-a" "4066344bc65d5b5816bf21297c71c8b9b86e5674efb6b957cdabc5497ec4d44e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling levenshtein v1.0.4
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:291:21
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling poi v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:291:21
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/expr.rs:299:21
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "4066344bc65d5b5816bf21297c71c8b9b86e5674efb6b957cdabc5497ec4d44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4066344bc65d5b5816bf21297c71c8b9b86e5674efb6b957cdabc5497ec4d44e", kill_on_drop: false }`
[INFO] [stdout] 4066344bc65d5b5816bf21297c71c8b9b86e5674efb6b957cdabc5497ec4d44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e4acbb134611af243157cba0d1ed20da5b17fdda4a185413bfb392a93a6403b
[INFO] running `Command { std: "docker" "start" "-a" "2e4acbb134611af243157cba0d1ed20da5b17fdda4a185413bfb392a93a6403b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/expr.rs:291:21
[INFO] [stderr]     |
[INFO] [stderr] 291 |                     &b[i].display(w, false, rule)?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/expr.rs:299:21
[INFO] [stderr]     |
[INFO] [stderr] 299 |                     &b[i].display(w, false, rule)?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `poi` (lib) generated 2 warnings
[INFO] [stderr] warning: `poi` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poi-c0354d29df4bfdfb)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test expr::tests::constraints ... ok
[INFO] [stdout] test tests::constraints ... ok
[INFO] [stdout] test expr::tests::parens ... ok
[INFO] [stdout] test parsing::tests::test_not_ret_var ... ok
[INFO] [stdout] test parsing::tests::test_ret_bool ... ok
[INFO] [stdout] test tests::comp_id ... ok
[INFO] [stdout] test tests::apply_not ... ok
[INFO] [stdout] test tests::comp_not_not ... ok
[INFO] [stdout] test tests::path_not_id ... ok
[INFO] [stdout] test tests::path_not_not ... ok
[INFO] [stdout] test tests::eval_var ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.91s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests poi
[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" "2e4acbb134611af243157cba0d1ed20da5b17fdda4a185413bfb392a93a6403b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4acbb134611af243157cba0d1ed20da5b17fdda4a185413bfb392a93a6403b", kill_on_drop: false }`
[INFO] [stdout] 2e4acbb134611af243157cba0d1ed20da5b17fdda4a185413bfb392a93a6403b