[INFO] fetching crate tokenizer 0.1.2...
[INFO] checking tokenizer-0.1.2 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate tokenizer 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tokenizer 0.1.2
[INFO] finished tweaking crates.io crate tokenizer 0.1.2
[INFO] tweaked toml for crates.io crate tokenizer 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokenizer 0.1.2 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385
[INFO] running `Command { std: "docker" "start" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking either v1.19.0
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking num-integer v0.1.47
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking permutator v0.4.3
[INFO] [stderr]     Checking tokenizer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `level` and `into_vec` are never used
[INFO] [stdout]   --> src/tokenizer/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub trait TreeOp<T> {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn level(&self) -> usize;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn into_vec(self) -> Vec<T>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `level` and `into_vec` are never used
[INFO] [stdout]   --> src/tokenizer/mod.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub trait TreeOp<T> {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn level(&self) -> usize;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn into_vec(self) -> Vec<T>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Vec<T>`
[INFO] [stdout]    --> src/tokenizer/mod.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         v.into()
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 202 -         v.into()
[INFO] [stdout] 202 +         v
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 202 -         v.into()
[INFO] [stdout] 202 +         <Vec<T> as Into<_>>::into(v)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer/th/mod.rs:399:27
[INFO] [stdout]     |
[INFO] [stdout] 399 |         fn make_iter(raw: &str) -> rayon::str::SplitWhitespace {
[INFO] [stdout]     |                           ^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 399 |         fn make_iter(raw: &str) -> rayon::str::SplitWhitespace<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> src/tokenizer/tests.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Vec::<&str>::from(&*TreeNode::root().read().unwrap());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let _ = Vec::<&str>::from(&*TreeNode::root().read().unwrap());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokenizer` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `Vec<T>`
[INFO] [stdout]    --> src/tokenizer/mod.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         v.into()
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 202 -         v.into()
[INFO] [stdout] 202 +         v
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 202 -         v.into()
[INFO] [stdout] 202 +         <Vec<T> as Into<_>>::into(v)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer/th/mod.rs:399:27
[INFO] [stdout]     |
[INFO] [stdout] 399 |         fn make_iter(raw: &str) -> rayon::str::SplitWhitespace {
[INFO] [stdout]     |                           ^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 399 |         fn make_iter(raw: &str) -> rayon::str::SplitWhitespace<'_> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokenizer` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385", kill_on_drop: false }`
[INFO] [stdout] 08c6612e39581a82cdcd99a2a5336c7acffed4d45f68e77873bb5e06f72ed385
