[INFO] cloning repository https://github.com/121601571/rust_dicttree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/121601571/rust_dicttree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F121601571%2Frust_dicttree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F121601571%2Frust_dicttree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cdd1d20ccfb8525bf564fb69206df89d54031bf
[INFO] testing 121601571/rust_dicttree against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F121601571%2Frust_dicttree" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/121601571/rust_dicttree
[INFO] finished tweaking git repo https://github.com/121601571/rust_dicttree
[INFO] tweaked toml for git repo https://github.com/121601571/rust_dicttree written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/121601571/rust_dicttree on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/121601571/rust_dicttree 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 117 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v1.1.4
[INFO] [stderr]       Adding android_system_properties v0.1.5
[INFO] [stderr]       Adding ansi_term v0.12.1
[INFO] [stderr]       Adding async-stream v0.3.6
[INFO] [stderr]       Adding async-stream-impl v0.3.6
[INFO] [stderr]       Adding atoi v0.3.3
[INFO] [stderr]       Adding atty v0.2.14
[INFO] [stderr]       Adding autocfg v1.5.0
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding bitflags v2.10.0
[INFO] [stderr]       Adding bumpalo v3.19.0
[INFO] [stderr]       Adding bytes v1.10.1
[INFO] [stderr]       Adding cc v1.2.45
[INFO] [stderr]       Adding cfg-if v1.0.4
[INFO] [stderr]       Adding chrono v0.4.42
[INFO] [stderr]       Adding clap v2.34.0
[INFO] [stderr]       Adding core-foundation-sys v0.8.7
[INFO] [stderr]       Adding find-msvc-tools v0.1.4
[INFO] [stderr]       Adding futures-core v0.3.31
[INFO] [stderr]       Adding getrandom v0.2.16
[INFO] [stderr]       Adding heck v0.3.3
[INFO] [stderr]       Adding hermit-abi v0.1.19
[INFO] [stderr]       Adding iana-time-zone v0.1.64
[INFO] [stderr]       Adding iana-time-zone-haiku v0.1.2
[INFO] [stderr]       Adding itoa v1.0.15
[INFO] [stderr]       Adding js-sys v0.3.82
[INFO] [stderr]       Adding lazy_static v1.5.0
[INFO] [stderr]       Adding libc v0.2.177
[INFO] [stderr]       Adding lock_api v0.4.14
[INFO] [stderr]       Adding log v0.4.28
[INFO] [stderr]       Adding matchers v0.0.1
[INFO] [stderr]       Adding memchr v2.7.6
[INFO] [stderr]       Adding mini-redis v0.4.1
[INFO] [stderr]       Adding mio v1.1.0
[INFO] [stderr]       Adding num-traits v0.2.19
[INFO] [stderr]       Adding once_cell v1.21.3
[INFO] [stderr]       Adding parking_lot v0.12.5
[INFO] [stderr]       Adding parking_lot_core v0.9.12
[INFO] [stderr]       Adding pin-project v1.1.10
[INFO] [stderr]       Adding pin-project-internal v1.1.10
[INFO] [stderr]       Adding pin-project-lite v0.2.16
[INFO] [stderr]       Adding ppv-lite86 v0.2.21
[INFO] [stderr]       Adding proc-macro-error v1.0.4
[INFO] [stderr]       Adding proc-macro-error-attr v1.0.4
[INFO] [stderr]       Adding proc-macro2 v1.0.103
[INFO] [stderr]       Adding quote v1.0.42
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_chacha v0.3.1
[INFO] [stderr]       Adding rand_core v0.6.4
[INFO] [stderr]       Adding redox_syscall v0.5.18
[INFO] [stderr]       Adding regex v1.12.2
[INFO] [stderr]       Adding regex-automata v0.1.10
[INFO] [stderr]       Adding regex-automata v0.4.13
[INFO] [stderr]       Adding regex-syntax v0.6.29
[INFO] [stderr]       Adding regex-syntax v0.8.8
[INFO] [stderr]       Adding rustversion v1.0.22
[INFO] [stderr]       Adding ryu v1.0.20
[INFO] [stderr]       Adding scopeguard v1.2.0
[INFO] [stderr]       Adding serde v1.0.228
[INFO] [stderr]       Adding serde_core v1.0.228
[INFO] [stderr]       Adding serde_derive v1.0.228
[INFO] [stderr]       Adding serde_json v1.0.145
[INFO] [stderr]       Adding sharded-slab v0.1.7
[INFO] [stderr]       Adding shlex v1.3.0
[INFO] [stderr]       Adding signal-hook-registry v1.4.6
[INFO] [stderr]       Adding smallvec v1.15.1
[INFO] [stderr]       Adding socket2 v0.6.1
[INFO] [stderr]       Adding strsim v0.8.0
[INFO] [stderr]       Adding structopt v0.3.26
[INFO] [stderr]       Adding structopt-derive v0.4.18
[INFO] [stderr]       Adding syn v1.0.109
[INFO] [stderr]       Adding syn v2.0.109
[INFO] [stderr]       Adding textwrap v0.11.0
[INFO] [stderr]       Adding thread_local v1.1.9
[INFO] [stderr]       Adding tokio v1.48.0
[INFO] [stderr]       Adding tokio-macros v2.6.0
[INFO] [stderr]       Adding tokio-stream v0.1.17
[INFO] [stderr]       Adding tracing v0.1.41
[INFO] [stderr]       Adding tracing-attributes v0.1.30
[INFO] [stderr]       Adding tracing-core v0.1.34
[INFO] [stderr]       Adding tracing-futures v0.2.5
[INFO] [stderr]       Adding tracing-log v0.1.4
[INFO] [stderr]       Adding tracing-serde v0.1.3
[INFO] [stderr]       Adding tracing-subscriber v0.2.25
[INFO] [stderr]       Adding unicode-ident v1.0.22
[INFO] [stderr]       Adding unicode-segmentation v1.12.0
[INFO] [stderr]       Adding unicode-width v0.1.14
[INFO] [stderr]       Adding valuable v0.1.1
[INFO] [stderr]       Adding vec_map v0.8.2
[INFO] [stderr]       Adding version_check v0.9.5
[INFO] [stderr]       Adding wasi v0.11.1+wasi-snapshot-preview1
[INFO] [stderr]       Adding wasm-bindgen v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-macro v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-macro-support v0.2.105
[INFO] [stderr]       Adding wasm-bindgen-shared v0.2.105
[INFO] [stderr]       Adding winapi v0.3.9
[INFO] [stderr]       Adding winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]       Adding winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]       Adding windows-core v0.62.2
[INFO] [stderr]       Adding windows-implement v0.60.2
[INFO] [stderr]       Adding windows-interface v0.59.3
[INFO] [stderr]       Adding windows-link v0.2.1
[INFO] [stderr]       Adding windows-result v0.4.1
[INFO] [stderr]       Adding windows-strings v0.5.1
[INFO] [stderr]       Adding windows-sys v0.60.2
[INFO] [stderr]       Adding windows-sys v0.61.2
[INFO] [stderr]       Adding windows-targets v0.53.5
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.53.1
[INFO] [stderr]       Adding windows_aarch64_msvc v0.53.1
[INFO] [stderr]       Adding windows_i686_gnu v0.53.1
[INFO] [stderr]       Adding windows_i686_gnullvm v0.53.1
[INFO] [stderr]       Adding windows_i686_msvc v0.53.1
[INFO] [stderr]       Adding windows_x86_64_gnu v0.53.1
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.53.1
[INFO] [stderr]       Adding windows_x86_64_msvc v0.53.1
[INFO] [stderr]       Adding zerocopy v0.8.27
[INFO] [stderr]       Adding zerocopy-derive v0.8.27
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-serde v0.1.3
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.105
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.105
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded async-stream-impl v0.3.6
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded tracing-log v0.1.4
[INFO] [stderr]   Downloaded async-stream v0.3.6
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.18
[INFO] [stderr]   Downloaded structopt v0.3.26
[INFO] [stderr]   Downloaded pin-project v1.1.10
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.105
[INFO] [stderr]   Downloaded mini-redis v0.4.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.25
[INFO] [stderr]   Downloaded aho-corasick v1.1.4
[INFO] [stderr]   Downloaded pin-project-internal v1.1.10
[INFO] [stderr]   Downloaded js-sys v0.3.82
[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded clap v2.34.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.105
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.29
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0557103267fc3ef79828545c2461e11c37ce690ff6fae24bfef1bdd9376eac
[INFO] running `Command { std: "docker" "start" "-a" "8b0557103267fc3ef79828545c2461e11c37ce690ff6fae24bfef1bdd9376eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0557103267fc3ef79828545c2461e11c37ce690ff6fae24bfef1bdd9376eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0557103267fc3ef79828545c2461e11c37ce690ff6fae24bfef1bdd9376eac", kill_on_drop: false }`
[INFO] [stdout] 8b0557103267fc3ef79828545c2461e11c37ce690ff6fae24bfef1bdd9376eac
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2711170dbdc68588679a0389292d40f47597efcb55dc12d2ff70a1f36bad87d2
[INFO] running `Command { std: "docker" "start" "-a" "2711170dbdc68588679a0389292d40f47597efcb55dc12d2ff70a1f36bad87d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling mini-redis v0.4.1
[INFO] [stderr]    Compiling dict_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut res = vec![];
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut res = vec![];
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyTree` is never constructed
[INFO] [stdout]  --> src/lib.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct MyTree {
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lib.rs:11:12
[INFO] [stdout]     |
[INFO] [stdout]  10 |     impl MyTree {
[INFO] [stdout]     |     ----------- associated items in this implementation
[INFO] [stdout]  11 |         fn contains_value(&self, input: char) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  22 |         pub fn find_suffix(&mut self, input: Vec<char>) -> Vec<Vec<char>> {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |         pub fn iter_self_values_dry(&self) -> Vec<Vec<char>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |         fn iter_self_values(&self, contains_self: bool) -> Vec<Vec<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |         fn iter_value_node(&mut self, input: char) -> &mut MyTree {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |         pub fn new(node_val: char, ep: bool) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |         pub fn contains_whole(&mut self, input: Vec<char>) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |         pub fn add_chars(&mut self, input: Vec<char>) {
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_gen` is never used
[INFO] [stdout]  --> src/mass_test.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn random_gen() -> Vec<char> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mass_gen` is never used
[INFO] [stdout]   --> src/mass_test.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn mass_gen(sum1: u32) -> Vec<Vec<char>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.90s
[INFO] running `Command { std: "docker" "inspect" "2711170dbdc68588679a0389292d40f47597efcb55dc12d2ff70a1f36bad87d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2711170dbdc68588679a0389292d40f47597efcb55dc12d2ff70a1f36bad87d2", kill_on_drop: false }`
[INFO] [stdout] 2711170dbdc68588679a0389292d40f47597efcb55dc12d2ff70a1f36bad87d2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 972bdcdaf31687e8dde45d1707dee9e8ce78297f5e4ba182ee3f251cecd2e160
[INFO] running `Command { std: "docker" "start" "-a" "972bdcdaf31687e8dde45d1707dee9e8ce78297f5e4ba182ee3f251cecd2e160", kill_on_drop: false }`
[INFO] [stderr]    Compiling dict_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut res = vec![];
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut res = vec![];
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyTree` is never constructed
[INFO] [stdout]  --> src/lib.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub struct MyTree {
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lib.rs:11:12
[INFO] [stdout]     |
[INFO] [stdout]  10 |     impl MyTree {
[INFO] [stdout]     |     ----------- associated items in this implementation
[INFO] [stdout]  11 |         fn contains_value(&self, input: char) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  22 |         pub fn find_suffix(&mut self, input: Vec<char>) -> Vec<Vec<char>> {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |         pub fn iter_self_values_dry(&self) -> Vec<Vec<char>> {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  73 |         fn iter_self_values(&self, contains_self: bool) -> Vec<Vec<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |         fn iter_value_node(&mut self, input: char) -> &mut MyTree {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |         pub fn new(node_val: char, ep: bool) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |         pub fn contains_whole(&mut self, input: Vec<char>) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |         pub fn add_chars(&mut self, input: Vec<char>) {
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_gen` is never used
[INFO] [stdout]  --> src/mass_test.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn random_gen() -> Vec<char> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mass_gen` is never used
[INFO] [stdout]   --> src/mass_test.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn mass_gen(sum1: u32) -> Vec<Vec<char>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             let mut res = vec![];
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:137:25
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stdout]     |                         ----^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "972bdcdaf31687e8dde45d1707dee9e8ce78297f5e4ba182ee3f251cecd2e160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972bdcdaf31687e8dde45d1707dee9e8ce78297f5e4ba182ee3f251cecd2e160", kill_on_drop: false }`
[INFO] [stdout] 972bdcdaf31687e8dde45d1707dee9e8ce78297f5e4ba182ee3f251cecd2e160
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 136df8712c423f8e0544c6d5af10bd238d65c4bfa88470eb7ca9217f1b472107
[INFO] running `Command { std: "docker" "start" "-a" "136df8712c423f8e0544c6d5af10bd238d65c4bfa88470eb7ca9217f1b472107", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |             let mut res = vec![];
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:137:25
[INFO] [stderr]     |
[INFO] [stderr] 137 |                     let mut node1 = self.iter_value_node(input[0]);
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `dict_tree` (lib) generated 2 warnings (run `cargo fix --lib -p dict_tree` to apply 2 suggestions)
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod lib;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: lib.rs is the root of this crate's library target
[INFO] [stderr]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MyTree` is never constructed
[INFO] [stderr]  --> src/lib.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub struct MyTree {
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/lib.rs:11:12
[INFO] [stderr]     |
[INFO] [stderr]  10 |     impl MyTree {
[INFO] [stderr]     |     ----------- associated items in this implementation
[INFO] [stderr]  11 |         fn contains_value(&self, input: char) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  22 |         pub fn find_suffix(&mut self, input: Vec<char>) -> Vec<Vec<char>> {
[INFO] [stderr]     |                ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  59 |         pub fn iter_self_values_dry(&self) -> Vec<Vec<char>> {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  73 |         fn iter_self_values(&self, contains_self: bool) -> Vec<Vec<char>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  99 |         fn iter_value_node(&mut self, input: char) -> &mut MyTree {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 110 |         pub fn new(node_val: char, ep: bool) -> Self {
[INFO] [stderr]     |                ^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |         pub fn contains_whole(&mut self, input: Vec<char>) -> bool {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 133 |         pub fn add_chars(&mut self, input: Vec<char>) {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `random_gen` is never used
[INFO] [stderr]  --> src/mass_test.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn random_gen() -> Vec<char> {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mass_gen` is never used
[INFO] [stderr]   --> src/mass_test.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn mass_gen(sum1: u32) -> Vec<Vec<char>> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dict_tree` (bin "dict_tree" test) generated 7 warnings (2 duplicates)
[INFO] [stderr] warning: `dict_tree` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dict_tree-94a1da1464043ada)
[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/dict_tree-56f26afcd46adc72)
[INFO] [stderr]    Doc-tests dict_tree
[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] [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" "136df8712c423f8e0544c6d5af10bd238d65c4bfa88470eb7ca9217f1b472107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136df8712c423f8e0544c6d5af10bd238d65c4bfa88470eb7ca9217f1b472107", kill_on_drop: false }`
[INFO] [stdout] 136df8712c423f8e0544c6d5af10bd238d65c4bfa88470eb7ca9217f1b472107
