[INFO] fetching crate blisp 0.3.9...
[INFO] checking blisp-0.3.9 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate blisp 0.3.9 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate blisp 0.3.9 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blisp 0.3.9
[INFO] finished tweaking crates.io crate blisp 0.3.9
[INFO] tweaked toml for crates.io crate blisp 0.3.9 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d414bbbe0abfaf2093bf5599725716eac71f97f027f08371d00ef3d83143ee40
[INFO] running `Command { std: "docker" "start" "-a" "d414bbbe0abfaf2093bf5599725716eac71f97f027f08371d00ef3d83143ee40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d414bbbe0abfaf2093bf5599725716eac71f97f027f08371d00ef3d83143ee40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d414bbbe0abfaf2093bf5599725716eac71f97f027f08371d00ef3d83143ee40", kill_on_drop: false }`
[INFO] [stdout] d414bbbe0abfaf2093bf5599725716eac71f97f027f08371d00ef3d83143ee40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccf825a0840d98af94eb3a6347e69260206ea448eb80eccb86be0c469395309c
[INFO] running `Command { std: "docker" "start" "-a" "ccf825a0840d98af94eb3a6347e69260206ea448eb80eccb86be0c469395309c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]     Checking blisp v0.3.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `ty`
[INFO] [stdout]    --> src/semantics.rs:569:5
[INFO] [stdout]     |
[INFO] [stdout] 569 |     ty: Option<Type>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:574:5
[INFO] [stdout]     |
[INFO] [stdout] 574 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:579:5
[INFO] [stdout]     |
[INFO] [stdout] 579 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:584:5
[INFO] [stdout]     |
[INFO] [stdout] 584 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:589:5
[INFO] [stdout]     |
[INFO] [stdout] 589 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ty`
[INFO] [stdout]    --> src/semantics.rs:569:5
[INFO] [stdout]     |
[INFO] [stdout] 569 |     ty: Option<Type>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:574:5
[INFO] [stdout]     |
[INFO] [stdout] 574 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:579:5
[INFO] [stdout]     |
[INFO] [stdout] 579 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:584:5
[INFO] [stdout]     |
[INFO] [stdout] 584 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]    --> src/semantics.rs:589:5
[INFO] [stdout]     |
[INFO] [stdout] 589 |     pub(crate) pos: Pos,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.82s
[INFO] running `Command { std: "docker" "inspect" "ccf825a0840d98af94eb3a6347e69260206ea448eb80eccb86be0c469395309c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf825a0840d98af94eb3a6347e69260206ea448eb80eccb86be0c469395309c", kill_on_drop: false }`
[INFO] [stdout] ccf825a0840d98af94eb3a6347e69260206ea448eb80eccb86be0c469395309c