[INFO] fetching crate gaia_quadtree 0.1.7...
[INFO] testing gaia_quadtree-0.1.7 against beta-2021-09-12 for beta-1.56-2
[INFO] extracting crate gaia_quadtree 0.1.7 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate gaia_quadtree 0.1.7 on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gaia_quadtree 0.1.7
[INFO] finished tweaking crates.io crate gaia_quadtree 0.1.7
[INFO] tweaked toml for crates.io crate gaia_quadtree 0.1.7 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fe771b51fdad6fb16c64b19452acf1c9d89b9d1acb6978585d02f75c67e5ce1
[INFO] running `Command { std: "docker" "start" "-a" "8fe771b51fdad6fb16c64b19452acf1c9d89b9d1acb6978585d02f75c67e5ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fe771b51fdad6fb16c64b19452acf1c9d89b9d1acb6978585d02f75c67e5ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe771b51fdad6fb16c64b19452acf1c9d89b9d1acb6978585d02f75c67e5ce1", kill_on_drop: false }`
[INFO] [stdout] 8fe771b51fdad6fb16c64b19452acf1c9d89b9d1acb6978585d02f75c67e5ce1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17384b6f654487df039b539b8229f2d92837666423e63bb0ed1fded858828e7d
[INFO] running `Command { std: "docker" "start" "-a" "17384b6f654487df039b539b8229f2d92837666423e63bb0ed1fded858828e7d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling gaia_quadtree v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings'
[INFO] [stdout]    --> src/lib.rs:130:47
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let offset = self.offset + overflow_x.div_floor(&width);
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #88581 <https://github.com/rust-lang/rust/issues/88581> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:130:57
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let offset = self.offset + overflow_x.div_floor(&width);
[INFO] [stdout]     |                                                         ^^^^^^ expected `i16`, found `&i16`
[INFO] [stdout]     |
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 130 -         let offset = self.offset + overflow_x.div_floor(&width);
[INFO] [stdout] 130 +         let offset = self.offset + overflow_x.div_floor(width);
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gaia_quadtree` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "17384b6f654487df039b539b8229f2d92837666423e63bb0ed1fded858828e7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17384b6f654487df039b539b8229f2d92837666423e63bb0ed1fded858828e7d", kill_on_drop: false }`
[INFO] [stdout] 17384b6f654487df039b539b8229f2d92837666423e63bb0ed1fded858828e7d