[INFO] fetching crate poi 0.23.0...
[INFO] testing poi-0.23.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate poi 0.23.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate poi 0.23.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-2/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 033c6860ed784fe3f634f612618d23be2da7899137016f4ac1f08cab7a7259dc
[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" "033c6860ed784fe3f634f612618d23be2da7899137016f4ac1f08cab7a7259dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "033c6860ed784fe3f634f612618d23be2da7899137016f4ac1f08cab7a7259dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033c6860ed784fe3f634f612618d23be2da7899137016f4ac1f08cab7a7259dc", kill_on_drop: false }`
[INFO] [stdout] 033c6860ed784fe3f634f612618d23be2da7899137016f4ac1f08cab7a7259dc
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ef70d3fb89a4f59086685510af5c910dfc85bbbf6c10ad4a659f1bc8527c1bf
[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" "8ef70d3fb89a4f59086685510af5c910dfc85bbbf6c10ad4a659f1bc8527c1bf", 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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     let _ = &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     +++++++
[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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     let _ = &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 5.31s
[INFO] running `Command { std: "docker" "inspect" "8ef70d3fb89a4f59086685510af5c910dfc85bbbf6c10ad4a659f1bc8527c1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef70d3fb89a4f59086685510af5c910dfc85bbbf6c10ad4a659f1bc8527c1bf", kill_on_drop: false }`
[INFO] [stdout] 8ef70d3fb89a4f59086685510af5c910dfc85bbbf6c10ad4a659f1bc8527c1bf
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3429beccbb2ed92f68f02f2aa7e69ea64b8a796a700d0c73274d72793cd28521
[INFO] running `Command { std: "docker" "start" "-a" "3429beccbb2ed92f68f02f2aa7e69ea64b8a796a700d0c73274d72793cd28521", 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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     let _ = &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     +++++++
[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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     let _ = &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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     let _ = &b[i].display(w, false, rule)?;
[INFO] [stdout]     |                     +++++++
[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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |                     let _ = &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 9.50s
[INFO] running `Command { std: "docker" "inspect" "3429beccbb2ed92f68f02f2aa7e69ea64b8a796a700d0c73274d72793cd28521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3429beccbb2ed92f68f02f2aa7e69ea64b8a796a700d0c73274d72793cd28521", kill_on_drop: false }`
[INFO] [stdout] 3429beccbb2ed92f68f02f2aa7e69ea64b8a796a700d0c73274d72793cd28521
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7541eb743c4c8e47cb9a91457d1ac53cb72a0112df3d6c0300e8b8a650fadeb7
[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" "7541eb743c4c8e47cb9a91457d1ac53cb72a0112df3d6c0300e8b8a650fadeb7", 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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 291 |                     let _ = &b[i].display(w, false, rule)?;
[INFO] [stderr]     |                     +++++++
[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]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 299 |                     let _ = &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 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/poi-27c070217f21c992)
[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::path_not_not ... ok
[INFO] [stdout] test tests::comp_not_not ... ok
[INFO] [stdout] test tests::apply_not ... ok
[INFO] [stdout] test tests::comp_id ... 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 4.67s
[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" "7541eb743c4c8e47cb9a91457d1ac53cb72a0112df3d6c0300e8b8a650fadeb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7541eb743c4c8e47cb9a91457d1ac53cb72a0112df3d6c0300e8b8a650fadeb7", kill_on_drop: false }`
[INFO] [stdout] 7541eb743c4c8e47cb9a91457d1ac53cb72a0112df3d6c0300e8b8a650fadeb7