[INFO] fetching crate poi 0.23.0...
[INFO] testing poi-0.23.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate poi 0.23.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate poi 0.23.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-0/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f50033ee7a187d9c05c2f775728b565997fa5488099899af9d1fd90f2d6a2ff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f50033ee7a187d9c05c2f775728b565997fa5488099899af9d1fd90f2d6a2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f50033ee7a187d9c05c2f775728b565997fa5488099899af9d1fd90f2d6a2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f50033ee7a187d9c05c2f775728b565997fa5488099899af9d1fd90f2d6a2ff", kill_on_drop: false }`
[INFO] [stdout] 2f50033ee7a187d9c05c2f775728b565997fa5488099899af9d1fd90f2d6a2ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e1ffc66cb7c1f53c186e3a61085c14a712e8dd083f59b5aef6785929eca8cd5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6e1ffc66cb7c1f53c186e3a61085c14a712e8dd083f59b5aef6785929eca8cd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling range v1.0.0
[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 3.93s
[INFO] running `Command { std: "docker" "inspect" "6e1ffc66cb7c1f53c186e3a61085c14a712e8dd083f59b5aef6785929eca8cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e1ffc66cb7c1f53c186e3a61085c14a712e8dd083f59b5aef6785929eca8cd5", kill_on_drop: false }`
[INFO] [stdout] 6e1ffc66cb7c1f53c186e3a61085c14a712e8dd083f59b5aef6785929eca8cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04147d0ba6162bae418383577bffdeeee3299bf6654be097267db7ac414f0435
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "04147d0ba6162bae418383577bffdeeee3299bf6654be097267db7ac414f0435", kill_on_drop: false }`
[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 5.66s
[INFO] running `Command { std: "docker" "inspect" "04147d0ba6162bae418383577bffdeeee3299bf6654be097267db7ac414f0435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04147d0ba6162bae418383577bffdeeee3299bf6654be097267db7ac414f0435", kill_on_drop: false }`
[INFO] [stdout] 04147d0ba6162bae418383577bffdeeee3299bf6654be097267db7ac414f0435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 235fd4968d830460e2fe5f0fbf2167b84fd2c8bd0faa6000fbf68ff3d5c75730
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "235fd4968d830460e2fe5f0fbf2167b84fd2c8bd0faa6000fbf68ff3d5c75730", kill_on_drop: false }`
[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: 2 warnings emitted
[INFO] [stderr] 
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poi-1e32b9d81fe48651)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::constraints ... ok
[INFO] [stdout] test expr::tests::parens ... ok
[INFO] [stdout] test expr::tests::constraints ... 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_not ... ok
[INFO] [stdout] test tests::path_not_id ... 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 1.38s
[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" "235fd4968d830460e2fe5f0fbf2167b84fd2c8bd0faa6000fbf68ff3d5c75730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "235fd4968d830460e2fe5f0fbf2167b84fd2c8bd0faa6000fbf68ff3d5c75730", kill_on_drop: false }`
[INFO] [stdout] 235fd4968d830460e2fe5f0fbf2167b84fd2c8bd0faa6000fbf68ff3d5c75730