[INFO] cloning repository https://github.com/psatomas/iterators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psatomas/iterators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fiterators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fiterators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c01afd1e8735c7e70be1b3e48bd24f0cc6fd9b9b
[INFO] testing psatomas/iterators against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fiterators" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/psatomas/iterators
[INFO] finished tweaking git repo https://github.com/psatomas/iterators
[INFO] tweaked toml for git repo https://github.com/psatomas/iterators written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/psatomas/iterators on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/psatomas/iterators 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing psatomas/iterators against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fiterators" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/psatomas/iterators
[INFO] finished tweaking git repo https://github.com/psatomas/iterators
[INFO] tweaked toml for git repo https://github.com/psatomas/iterators written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/psatomas/iterators on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/psatomas/iterators 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4049f22c2fc79d3e5c34293e3144fe01bfa260249fd7073314223290ef73be14
[INFO] running `Command { std: "docker" "start" "-a" "4049f22c2fc79d3e5c34293e3144fe01bfa260249fd7073314223290ef73be14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4049f22c2fc79d3e5c34293e3144fe01bfa260249fd7073314223290ef73be14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4049f22c2fc79d3e5c34293e3144fe01bfa260249fd7073314223290ef73be14", kill_on_drop: false }`
[INFO] [stdout] 4049f22c2fc79d3e5c34293e3144fe01bfa260249fd7073314223290ef73be14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8e9345fe42fb9979f8b9708379eb6c43b7357a8c058f9ad5f59cc3a5763c21b
[INFO] running `Command { std: "docker" "start" "-a" "b8e9345fe42fb9979f8b9708379eb6c43b7357a8c058f9ad5f59cc3a5763c21b", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]  --> src/bin/the_intoiterator_trait_in_action.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let my_iterator = my_vector.into_iter();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]  --> src/bin/the_intoiterator_trait_in_action.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let my_iterator = my_vector.into_iter();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]   --> src/bin/the_intoiterator_trait_in_action.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let my_iterator = my_hashmap.into_iter();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `video_file`, `subtitles`, and `high_definition` are never read
[INFO] [stdout]  --> src/bin/collecting_command_line_arguments_ii.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Settings {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 6 |     video_file: String,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     subtitles: bool,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     high_definition: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `manager` is never read
[INFO] [stdout]  --> src/bin/the_sort_and_sort_by_key_methods.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct GasStation {
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 3 |     snack_count: u32,
[INFO] [stdout] 4 |     manager: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GasStation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bin/the_any_and_all_methods.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct TVChannel {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 10 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TVChannel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `playlist`
[INFO] [stdout]   --> src/bin/the_from_iterator_trait.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let playlist = songs.into_iter().collect::<Playlist>();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_playlist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `songs` and `users` are never read
[INFO] [stdout]  --> src/bin/the_from_iterator_trait.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Playlist {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 5 |     songs: Vec<String>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     users: HashSet<String>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Playlist` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "b8e9345fe42fb9979f8b9708379eb6c43b7357a8c058f9ad5f59cc3a5763c21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e9345fe42fb9979f8b9708379eb6c43b7357a8c058f9ad5f59cc3a5763c21b", kill_on_drop: false }`
[INFO] [stdout] b8e9345fe42fb9979f8b9708379eb6c43b7357a8c058f9ad5f59cc3a5763c21b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0afe5ce856b574b102eff5dc9442ae45754c9b5d90d530a6ceeabc047e517a67
[INFO] running `Command { std: "docker" "start" "-a" "0afe5ce856b574b102eff5dc9442ae45754c9b5d90d530a6ceeabc047e517a67", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `manager` is never read
[INFO] [stdout]  --> src/bin/the_sort_and_sort_by_key_methods.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct GasStation {
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 3 |     snack_count: u32,
[INFO] [stdout] 4 |     manager: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GasStation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `video_file`, `subtitles`, and `high_definition` are never read
[INFO] [stdout]  --> src/bin/collecting_command_line_arguments_ii.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Settings {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 6 |     video_file: String,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 7 |     subtitles: bool,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     high_definition: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]  --> src/bin/the_intoiterator_trait_in_action.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let my_iterator = my_vector.into_iter();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]  --> src/bin/the_intoiterator_trait_in_action.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let my_iterator = my_vector.into_iter();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_iterator`
[INFO] [stdout]   --> src/bin/the_intoiterator_trait_in_action.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let my_iterator = my_hashmap.into_iter();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/bin/the_any_and_all_methods.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct TVChannel {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 10 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TVChannel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `playlist`
[INFO] [stdout]   --> src/bin/the_from_iterator_trait.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let playlist = songs.into_iter().collect::<Playlist>();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_playlist`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `songs` and `users` are never read
[INFO] [stdout]  --> src/bin/the_from_iterator_trait.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Playlist {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 5 |     songs: Vec<String>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     users: HashSet<String>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Playlist` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "0afe5ce856b574b102eff5dc9442ae45754c9b5d90d530a6ceeabc047e517a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0afe5ce856b574b102eff5dc9442ae45754c9b5d90d530a6ceeabc047e517a67", kill_on_drop: false }`
[INFO] [stdout] 0afe5ce856b574b102eff5dc9442ae45754c9b5d90d530a6ceeabc047e517a67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f53275207a011d39600225376dcfd6a884500fc59693ab8617522c11a181f48
[INFO] running `Command { std: "docker" "start" "-a" "5f53275207a011d39600225376dcfd6a884500fc59693ab8617522c11a181f48", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `playlist`
[INFO] [stderr]   --> src/bin/the_from_iterator_trait.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let playlist = songs.into_iter().collect::<Playlist>();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_playlist`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `songs` and `users` are never read
[INFO] [stderr]  --> src/bin/the_from_iterator_trait.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Playlist {
[INFO] [stderr]   |        -------- fields in this struct
[INFO] [stderr] 5 |     songs: Vec<String>,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 6 |     users: HashSet<String>,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Playlist` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `manager` is never read
[INFO] [stderr]  --> src/bin/the_sort_and_sort_by_key_methods.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct GasStation {
[INFO] [stderr]   |        ---------- field in this struct
[INFO] [stderr] 3 |     snack_count: u32,
[INFO] [stderr] 4 |     manager: String,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `GasStation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `my_iterator`
[INFO] [stderr]  --> src/bin/the_intoiterator_trait_in_action.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let my_iterator = my_vector.into_iter();
[INFO] [stderr]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `my_iterator`
[INFO] [stderr]  --> src/bin/the_intoiterator_trait_in_action.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let my_iterator = my_vector.into_iter();
[INFO] [stderr]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `my_iterator`
[INFO] [stderr]   --> src/bin/the_intoiterator_trait_in_action.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let my_iterator = my_hashmap.into_iter();
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators` (bin "the_from_iterator_trait" test) generated 2 warnings (run `cargo fix --bin "the_from_iterator_trait" -p iterators --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `iterators` (bin "the_sort_and_sort_by_key_methods" test) generated 1 warning
[INFO] [stderr] warning: `iterators` (bin "the_intoiterator_trait_in_action" test) generated 3 warnings (run `cargo fix --bin "the_intoiterator_trait_in_action" -p iterators --tests` to apply 3 suggestions)
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> src/bin/the_any_and_all_methods.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | struct TVChannel {
[INFO] [stderr]    |        --------- field in this struct
[INFO] [stderr] 10 |     name: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `TVChannel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `video_file`, `subtitles`, and `high_definition` are never read
[INFO] [stderr]  --> src/bin/collecting_command_line_arguments_ii.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Settings {
[INFO] [stderr]   |        -------- fields in this struct
[INFO] [stderr] 6 |     video_file: String,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 7 |     subtitles: bool,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 8 |     high_definition: bool,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators` (bin "the_any_and_all_methods" test) generated 1 warning
[INFO] [stderr] warning: `iterators` (bin "collecting_command_line_arguments_ii" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/bin/coding_challenge.rs (/opt/rustwide/target/debug/deps/coding_challenge-acbd546a736cff9b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/collecting_command_line_arguments_i.rs (/opt/rustwide/target/debug/deps/collecting_command_line_arguments_i-8bda79a6335998f1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/collecting_command_line_arguments_ii.rs (/opt/rustwide/target/debug/deps/collecting_command_line_arguments_ii-3a1eb33deba3ef73)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/exhausting_the_iterator.rs (/opt/rustwide/target/debug/deps/exhausting_the_iterator-4b77ab407874a28c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hashmap_iteration.rs (/opt/rustwide/target/debug/deps/hashmap_iteration-245818417304dc1f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/iterators-938158f604a56de9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/manual_iteration.rs (/opt/rustwide/target/debug/deps/manual_iteration-1cba202f01bda164)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/project_wordle.rs (/opt/rustwide/target/debug/deps/project_wordle-6912187df737fd01)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/reading_directory.rs (/opt/rustwide/target/debug/deps/reading_directory-a6493d82462a84b2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/solving_a_problem_with_iterator.rs (/opt/rustwide/target/debug/deps/solving_a_problem_with_iterator-a5425c4397b07b3e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/string_iteration.rs (/opt/rustwide/target/debug/deps/string_iteration-e93a3fed8cbf1776)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the__partition_method.rs (/opt/rustwide/target/debug/deps/the__partition_method-68cf5df0d9272b98)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_any_and_all_methods.rs (/opt/rustwide/target/debug/deps/the_any_and_all_methods-cc216dd06c2feec6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_cloned_method.rs (/opt/rustwide/target/debug/deps/the_cloned_method-3d45d99ab4019392)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_collect_method.rs (/opt/rustwide/target/debug/deps/the_collect_method-c66e3b111a5e4833)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_enumerate_method.rs (/opt/rustwide/target/debug/deps/the_enumerate_method-ee2609602af89193)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_filter_and_find_methods_II.rs (/opt/rustwide/target/debug/deps/the_filter_and_find_methods_II-b84fe6ccc34962f8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_filter_and_find_methods_i.rs (/opt/rustwide/target/debug/deps/the_filter_and_find_methods_i-4007da84caa50938)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_filter_map_method.rs (/opt/rustwide/target/debug/deps/the_filter_map_method-b3e5898845b52f6f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_flat_map_method.rs (/opt/rustwide/target/debug/deps/the_flat_map_method-c2705624f55284a8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_flatten_method.rs (/opt/rustwide/target/debug/deps/the_flatten_method-fed9423be09c0672)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_fold_method.rs (/opt/rustwide/target/debug/deps/the_fold_method-94ca9ca8cbfbbbf7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_for_each_method.rs (/opt/rustwide/target/debug/deps/the_for_each_method-41b337d9cabb7181)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_for_loop_with_iterator.rs (/opt/rustwide/target/debug/deps/the_for_loop_with_iterator-a6da65c845d62724)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_from_iterator_trait.rs (/opt/rustwide/target/debug/deps/the_from_iterator_trait-9cc1b10d3e8697ac)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_intoiterator_trait_in_action.rs (/opt/rustwide/target/debug/deps/the_intoiterator_trait_in_action-09c0868b6676049a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_iter_method.rs (/opt/rustwide/target/debug/deps/the_iter_method-3afff46498488a76)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_iter_mut_method.rs (/opt/rustwide/target/debug/deps/the_iter_mut_method-07985fdbebfe3687)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_last_nth_nth_back_and_position_methods.rs (/opt/rustwide/target/debug/deps/the_last_nth_nth_back_and_position_methods-3734c3b93ae5d055)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_lines_method.rs (/opt/rustwide/target/debug/deps/the_lines_method-766d2f578598c671)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_map_method_i.rs (/opt/rustwide/target/debug/deps/the_map_method_i-63f969f3d4b27336)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_map_method_ii.rs (/opt/rustwide/target/debug/deps/the_map_method_ii-461e61ee159baa70)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_reduce_method.rs (/opt/rustwide/target/debug/deps/the_reduce_method-9b6872bc80012084)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_sort_and_sort_by_key_methods.rs (/opt/rustwide/target/debug/deps/the_sort_and_sort_by_key_methods-25d3497d69f65f60)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_sum_product_max_min_and_count_methods.rs (/opt/rustwide/target/debug/deps/the_sum_product_max_min_and_count_methods-09f65bfc472ce407)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_take_rev_skip_and_step_by_methods.rs (/opt/rustwide/target/debug/deps/the_take_rev_skip_and_step_by_methods-d1d0f5d1594a8c8e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/the_zip_method.rs (/opt/rustwide/target/debug/deps/the_zip_method-0cd59357c982b062)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/why_iterator_can_be_immutable.rs (/opt/rustwide/target/debug/deps/why_iterator_can_be_immutable-fc84fc8cf8f7816c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f53275207a011d39600225376dcfd6a884500fc59693ab8617522c11a181f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f53275207a011d39600225376dcfd6a884500fc59693ab8617522c11a181f48", kill_on_drop: false }`
[INFO] [stdout] 5f53275207a011d39600225376dcfd6a884500fc59693ab8617522c11a181f48