[INFO] fetching crate woot 0.1.2...
[INFO] testing woot-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate woot 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate woot 0.1.2
[INFO] finished tweaking crates.io crate woot 0.1.2
[INFO] tweaked toml for crates.io crate woot 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate woot 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.5.10 (available: v0.14.0)
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a62cf0388db633b749d6981bda606269eda59129a2abd4c305a7cbf1ea1ac2b9
[INFO] running `Command { std: "docker" "start" "-a" "a62cf0388db633b749d6981bda606269eda59129a2abd4c305a7cbf1ea1ac2b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a62cf0388db633b749d6981bda606269eda59129a2abd4c305a7cbf1ea1ac2b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a62cf0388db633b749d6981bda606269eda59129a2abd4c305a7cbf1ea1ac2b9", kill_on_drop: false }`
[INFO] [stdout] a62cf0388db633b749d6981bda606269eda59129a2abd4c305a7cbf1ea1ac2b9
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f5b891cedff3cbd125383240fddc7d8e0cba68c0641bf119b6e024882173eeb
[INFO] running `Command { std: "docker" "start" "-a" "6f5b891cedff3cbd125383240fddc7d8e0cba68c0641bf119b6e024882173eeb", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling woot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         try!(writeln!(fmt, "WString"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(writeln!(fmt, "  queue for {:?}", stamp));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 try!(writeln!(fmt, "    {:?}", item));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             try!(writeln!(fmt, "  data[{:4}]: {:?}", i, item));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:243:24
[INFO] [stdout]     |
[INFO] [stdout] 243 |             .batching(|mut it| match (it.next(), it.peek()) {
[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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn iter(&self) -> WStringIter<S, P> {
[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] 171 |     pub fn iter(&self) -> WStringIter<'_, S, P> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "6f5b891cedff3cbd125383240fddc7d8e0cba68c0641bf119b6e024882173eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5b891cedff3cbd125383240fddc7d8e0cba68c0641bf119b6e024882173eeb", kill_on_drop: false }`
[INFO] [stdout] 6f5b891cedff3cbd125383240fddc7d8e0cba68c0641bf119b6e024882173eeb
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4df0d9b1c2d27bb586d7dec767815db012eff8fc68d976787e30512e81f30183
[INFO] running `Command { std: "docker" "start" "-a" "4df0d9b1c2d27bb586d7dec767815db012eff8fc68d976787e30512e81f30183", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         try!(writeln!(fmt, "WString"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(writeln!(fmt, "  queue for {:?}", stamp));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 try!(writeln!(fmt, "    {:?}", item));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             try!(writeln!(fmt, "  data[{:4}]: {:?}", i, item));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:243:24
[INFO] [stdout]     |
[INFO] [stdout] 243 |             .batching(|mut it| match (it.next(), it.peek()) {
[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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn iter(&self) -> WStringIter<S, P> {
[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] 171 |     pub fn iter(&self) -> WStringIter<'_, S, P> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling woot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0061]: this method takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]    --> tests/tp2.rs:7:7
[INFO] [stdout]     |
[INFO] [stdout]   7 |     s.ins(0, 'a');
[INFO] [stdout]     |       ^^^-------- argument #3 is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:336:12
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub fn ins(&mut self, n: usize, v: S, stamp: P) -> Operation<S, P> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout]   7 |     s.ins(0, 'a', /* stamp */);
[INFO] [stdout]     |                 +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: struct takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> tests/brute.rs:8:10
[INFO] [stdout]     |
[INFO] [stdout]   8 | type W = WString<u8>;
[INFO] [stdout]     |          ^^^^^^^ -- supplied 1 generic argument
[INFO] [stdout]     |          |
[INFO] [stdout]     |          expected 2 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] note: struct defined here, with 2 generic parameters: `S`, `P`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct WString<S, P: Key> {
[INFO] [stdout]     |            ^^^^^^^ -  -
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]     |
[INFO] [stdout]   8 | type W = WString<u8, P>;
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> tests/brute.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct E (u64, usize, Operation<u8>);
[INFO] [stdout]    |                       ^^^^^^^^^ -- supplied 1 generic argument
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       expected 2 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] note: enum defined here, with 2 generic parameters: `S`, `I`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:91:10
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub enum Operation<S, I: Key> {
[INFO] [stdout]    |          ^^^^^^^^^ -  -
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct E (u64, usize, Operation<u8, I>);
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]    --> tests/tp2.rs:9:7
[INFO] [stdout]     |
[INFO] [stdout]   9 |     s.ins(1, 'b');
[INFO] [stdout]     |       ^^^-------- argument #3 is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:336:12
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub fn ins(&mut self, n: usize, v: S, stamp: P) -> Operation<S, P> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout]   9 |     s.ins(1, 'b', /* stamp */);
[INFO] [stdout]     |                 +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         try!(writeln!(fmt, "WString"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             try!(writeln!(fmt, "  queue for {:?}", stamp));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 try!(writeln!(fmt, "    {:?}", item));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             try!(writeln!(fmt, "  data[{:4}]: {:?}", i, item));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]    --> tests/tp2.rs:11:7
[INFO] [stdout]     |
[INFO] [stdout]  11 |     s.ins(2, 'c');
[INFO] [stdout]     |       ^^^-------- argument #3 is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:336:12
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub fn ins(&mut self, n: usize, v: S, stamp: P) -> Operation<S, P> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout]  11 |     s.ins(2, 'c', /* stamp */);
[INFO] [stdout]     |                 +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]    --> tests/tp2.rs:13:7
[INFO] [stdout]     |
[INFO] [stdout]  13 |     s.ins(3, 'd');
[INFO] [stdout]     |       ^^^-------- argument #3 is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:336:12
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub fn ins(&mut self, n: usize, v: S, stamp: P) -> Operation<S, P> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout]  13 |     s.ins(3, 'd', /* stamp */);
[INFO] [stdout]     |                 +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `with_id` found for struct `WString<S, P>` in the current scope
[INFO] [stdout]    --> tests/brute.rs:36:29
[INFO] [stdout]     |
[INFO] [stdout]  36 |         sites.push(WString::with_id(id));
[INFO] [stdout]     |                             ^^^^^^^ function or associated item not found in `WString<_, _>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `WString<_, _>`, consider using `WString::<S, P>::new` which returns `WString<_, _>`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/lib.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn new() -> WString<S, P> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `WString<S, P>` in the current scope
[INFO] [stdout]   --> tests/tp2.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut s1 = s.clone();
[INFO] [stdout]    |                    ^^^^^ method not found in `WString<char, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `WString<S, P>` in the current scope
[INFO] [stdout]   --> tests/tp2.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut s2 = s.clone();
[INFO] [stdout]    |                    ^^^^^ method not found in `WString<char, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clone` found for struct `WString<S, P>` in the current scope
[INFO] [stdout]   --> tests/tp2.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut s3 = s.clone();
[INFO] [stdout]    |                    ^^^^^ method not found in `WString<char, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:243:24
[INFO] [stdout]     |
[INFO] [stdout] 243 |             .batching(|mut it| match (it.next(), it.peek()) {
[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] Some errors have detailed explanations: E0061, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:171:17
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn iter(&self) -> WStringIter<S, P> {
[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] 171 |     pub fn iter(&self) -> WStringIter<'_, S, P> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `woot` (test "tp2") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `woot` (test "brute") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "4df0d9b1c2d27bb586d7dec767815db012eff8fc68d976787e30512e81f30183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df0d9b1c2d27bb586d7dec767815db012eff8fc68d976787e30512e81f30183", kill_on_drop: false }`
[INFO] [stdout] 4df0d9b1c2d27bb586d7dec767815db012eff8fc68d976787e30512e81f30183
