[INFO] fetching crate red_union_find 0.3.0...
[INFO] checking red_union_find-0.3.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate red_union_find 0.3.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate red_union_find 0.3.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate red_union_find 0.3.0
[INFO] finished tweaking crates.io crate red_union_find 0.3.0
[INFO] tweaked toml for crates.io crate red_union_find 0.3.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d9c7f17c8fe66f3d6b12af01987b0556bb7dcde9db0dc75dbece1c5c12a0cd0
[INFO] running `Command { std: "docker" "start" "-a" "3d9c7f17c8fe66f3d6b12af01987b0556bb7dcde9db0dc75dbece1c5c12a0cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d9c7f17c8fe66f3d6b12af01987b0556bb7dcde9db0dc75dbece1c5c12a0cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d9c7f17c8fe66f3d6b12af01987b0556bb7dcde9db0dc75dbece1c5c12a0cd0", kill_on_drop: false }`
[INFO] [stdout] 3d9c7f17c8fe66f3d6b12af01987b0556bb7dcde9db0dc75dbece1c5c12a0cd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4a924e3e07d660954979f3ffd580c2a5c6166ab35a58ddea8ae3359212f9d1f
[INFO] running `Command { std: "docker" "start" "-a" "e4a924e3e07d660954979f3ffd580c2a5c6166ab35a58ddea8ae3359212f9d1f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking red_union_find v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `num_integer`
[INFO] [stdout]    --> src/lib.rs:507:13
[INFO] [stdout]     |
[INFO] [stdout] 507 |         use num_integer::Integer;
[INFO] [stdout]     |             ^^^^^^^^^^^ use of undeclared crate or module `num_integer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gcd` found for type `u16` in the current scope
[INFO] [stdout]    --> src/lib.rs:518:22
[INFO] [stdout]     |
[INFO] [stdout] 518 |         assert_eq!(a.gcd(&b), 1, "a and b are not relatively prime");
[INFO] [stdout]     |                      ^^^ method not found in `u16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `red_union_find` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4a924e3e07d660954979f3ffd580c2a5c6166ab35a58ddea8ae3359212f9d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a924e3e07d660954979f3ffd580c2a5c6166ab35a58ddea8ae3359212f9d1f", kill_on_drop: false }`
[INFO] [stdout] e4a924e3e07d660954979f3ffd580c2a5c6166ab35a58ddea8ae3359212f9d1f