[INFO] fetching crate ntree-rs 0.1.9...
[INFO] checking ntree-rs-0.1.9 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate ntree-rs 0.1.9 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ntree-rs 0.1.9 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ntree-rs 0.1.9
[INFO] finished tweaking crates.io crate ntree-rs 0.1.9
[INFO] tweaked toml for crates.io crate ntree-rs 0.1.9 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.1)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding miniz_oxide v0.7.4 (latest: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1be80afab053290f435f1213890b94eb94a8b40408f64117b16fc463a6cd73fd
[INFO] running `Command { std: "docker" "start" "-a" "1be80afab053290f435f1213890b94eb94a8b40408f64117b16fc463a6cd73fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1be80afab053290f435f1213890b94eb94a8b40408f64117b16fc463a6cd73fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be80afab053290f435f1213890b94eb94a8b40408f64117b16fc463a6cd73fd", kill_on_drop: false }`
[INFO] [stdout] 1be80afab053290f435f1213890b94eb94a8b40408f64117b16fc463a6cd73fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ea0ce6eb65fd6cf4653f90e76e95ad2e08d1076d0d93906e0e4de9cb1ad19a5
[INFO] running `Command { std: "docker" "start" "-a" "2ea0ce6eb65fd6cf4653f90e76e95ad2e08d1076d0d93906e0e4de9cb1ad19a5", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.39.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking ntree-rs v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse_mut/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse_mut/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse_owned/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse_owned/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse_mut/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse_mut/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `r#async::*`
[INFO] [stdout]  --> src/traversal/traverse_owned/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use r#async::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::*`
[INFO] [stdout]  --> src/traversal/traverse_owned/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use sync::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `Command { std: "docker" "inspect" "2ea0ce6eb65fd6cf4653f90e76e95ad2e08d1076d0d93906e0e4de9cb1ad19a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ea0ce6eb65fd6cf4653f90e76e95ad2e08d1076d0d93906e0e4de9cb1ad19a5", kill_on_drop: false }`
[INFO] [stdout] 2ea0ce6eb65fd6cf4653f90e76e95ad2e08d1076d0d93906e0e4de9cb1ad19a5