[INFO] cloning repository https://github.com/dannygale/rs-trees [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannygale/rs-trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6b46aabb7e2ca6fe3acdeb2eb77ae10294025352 [INFO] checking dannygale/rs-trees against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dannygale/rs-trees on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dannygale/rs-trees [INFO] finished tweaking git repo https://github.com/dannygale/rs-trees [INFO] tweaked toml for git repo https://github.com/dannygale/rs-trees written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dannygale/rs-trees already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded test-env-log v0.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dde0a86a8d40bf02455180e694ef5a2735c0ba3ad2cd00449f1ef30fd2a10c27 [INFO] running `Command { std: "docker" "start" "-a" "dde0a86a8d40bf02455180e694ef5a2735c0ba3ad2cd00449f1ef30fd2a10c27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dde0a86a8d40bf02455180e694ef5a2735c0ba3ad2cd00449f1ef30fd2a10c27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dde0a86a8d40bf02455180e694ef5a2735c0ba3ad2cd00449f1ef30fd2a10c27", kill_on_drop: false }` [INFO] [stdout] dde0a86a8d40bf02455180e694ef5a2735c0ba3ad2cd00449f1ef30fd2a10c27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef8d5aa1962192ea284a4947e6651cb0a321591ce1bb1e6b3ea19079c03cfbd7 [INFO] running `Command { std: "docker" "start" "-a" "ef8d5aa1962192ea284a4947e6651cb0a321591ce1bb1e6b3ea19079c03cfbd7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Compiling syn v1.0.36 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking avl-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `NodeIter` [INFO] [stdout] --> src/node.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::{NodeIter, BreadthIter}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/tree.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | use std::iter::{Iterator, FromIterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `IntoIterator` is imported redundantly [INFO] [stdout] --> src/tree.rs:131:41 [INFO] [stdout] | [INFO] [stdout] 131 | use std::iter::{Iterator, FromIterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `IntoIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.43 [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 regex v1.3.9 [INFO] [stderr] Checking chrono v0.4.13 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Checking pretty_env_logger v0.3.1 [INFO] [stderr] Compiling quickcheck_macros v0.9.1 [INFO] [stderr] Compiling test-env-log v0.2.2 [INFO] [stdout] warning: unused import: `NodeIter` [INFO] [stdout] --> src/node.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::{NodeIter, BreadthIter}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/tree.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | use std::iter::{Iterator, FromIterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `IntoIterator` is imported redundantly [INFO] [stdout] --> src/tree.rs:131:41 [INFO] [stdout] | [INFO] [stdout] 131 | use std::iter::{Iterator, FromIterator, IntoIterator}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `IntoIterator` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `HashMap` is imported redundantly [INFO] [stdout] --> src/tree.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 175 | use super::*; [INFO] [stdout] | -------- the item `HashMap` is already imported here [INFO] [stdout] 176 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `it` [INFO] [stdout] --> src/iter.rs:343:13 [INFO] [stdout] | [INFO] [stdout] 343 | let it = NodeIter::with_root(&tree.root.unwrap()); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_it` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ans_vec` [INFO] [stdout] --> src/iter.rs:345:13 [INFO] [stdout] | [INFO] [stdout] 345 | let ans_vec = vec![(4,0), (5,0), (2,0), (6,0), (7,0), (3,0), (1,0)]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ans_vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s [INFO] running `Command { std: "docker" "inspect" "ef8d5aa1962192ea284a4947e6651cb0a321591ce1bb1e6b3ea19079c03cfbd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef8d5aa1962192ea284a4947e6651cb0a321591ce1bb1e6b3ea19079c03cfbd7", kill_on_drop: false }` [INFO] [stdout] ef8d5aa1962192ea284a4947e6651cb0a321591ce1bb1e6b3ea19079c03cfbd7