[INFO] cloning repository https://github.com/Strikeskids/pctf2021-dr-public
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Strikeskids/pctf2021-dr-public" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeskids%2Fpctf2021-dr-public", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeskids%2Fpctf2021-dr-public'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 997bcc9e7d7bd49cc878c472538563205034fcb8
[INFO] testing Strikeskids/pctf2021-dr-public against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrikeskids%2Fpctf2021-dr-public" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Strikeskids/pctf2021-dr-public on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Strikeskids/pctf2021-dr-public
[INFO] finished tweaking git repo https://github.com/Strikeskids/pctf2021-dr-public
[INFO] tweaked toml for git repo https://github.com/Strikeskids/pctf2021-dr-public written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/Strikeskids/pctf2021-dr-public already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded delegate v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d993e1da450a5f5b9d0746650dbb86518c26b62ed33c44ec330ca7e46606d1d
[INFO] running `Command { std: "docker" "start" "-a" "0d993e1da450a5f5b9d0746650dbb86518c26b62ed33c44ec330ca7e46606d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d993e1da450a5f5b9d0746650dbb86518c26b62ed33c44ec330ca7e46606d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d993e1da450a5f5b9d0746650dbb86518c26b62ed33c44ec330ca7e46606d1d", kill_on_drop: false }`
[INFO] [stdout] 0d993e1da450a5f5b9d0746650dbb86518c26b62ed33c44ec330ca7e46606d1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eff809ecf63aaf2e706f706e778e6a6c220913d2744196c7753a34d61167eb90
[INFO] running `Command { std: "docker" "start" "-a" "eff809ecf63aaf2e706f706e778e6a6c220913d2744196c7753a34d61167eb90", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling delegate v0.5.1
[INFO] [stderr]    Compiling dr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this file contains an unclosed delimiter
[INFO] [stdout]    --> src/bin/exploit.rs:703:3
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     |                            - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 275 |     fn into_tail(self) -> Option<(Self, T)> {
[INFO] [stdout]     |                                             - unclosed delimiter
[INFO] [stdout] ...
[INFO] [stdout] 295 |             Alt(ts) => {
[INFO] [stdout]     |                        - this delimiter might not be properly closed...
[INFO] [stdout] ...
[INFO] [stdout] 320 |         }
[INFO] [stdout]     |         - ...as it matches this but it has different indentation
[INFO] [stdout] ...
[INFO] [stdout] 703 | }
[INFO] [stdout]     |   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter is only allowed in associated functions
[INFO] [stdout]    --> src/bin/exploit.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |     fn head(&self) -> Option<&T> {
[INFO] [stdout]     |             ^^^^^ not semantically valid as function parameter
[INFO] [stdout]     |
[INFO] [stdout]     = note: associated functions are those in `impl` or `trait` definitions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter is only allowed in associated functions
[INFO] [stdout]    --> src/bin/exploit.rs:345:18
[INFO] [stdout]     |
[INFO] [stdout] 345 |     fn into_head(self) -> Option<(T, Self)> {
[INFO] [stdout]     |                  ^^^^ not semantically valid as function parameter
[INFO] [stdout]     |
[INFO] [stdout]     = note: associated functions are those in `impl` or `trait` definitions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `self` parameter is only allowed in associated functions
[INFO] [stdout]    --> src/bin/exploit.rs:410:17
[INFO] [stdout]     |
[INFO] [stdout] 410 |     fn simplify(self) -> Self {
[INFO] [stdout]     |                 ^^^^ not semantically valid as function parameter
[INFO] [stdout]     |
[INFO] [stdout]     = note: associated functions are those in `impl` or `trait` definitions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 323 |     fn head(&self) -> Option<&T> {
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             use of generic parameter from outer function
[INFO] [stdout]     |             use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:323:31
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     |      - type parameter from outer function
[INFO] [stdout] ...
[INFO] [stdout] 323 |     fn head(&self) -> Option<&T> {
[INFO] [stdout]     |        ----                   ^ use of generic parameter from outer function
[INFO] [stdout]     |        |
[INFO] [stdout]     |        help: try using a local generic parameter instead: `head<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:327:39
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 327 |             Seq(ts) => ts.first().map(Self::head).flatten(),
[INFO] [stdout]     |                                       ^^^^^^^^^^
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       use of generic parameter from outer function
[INFO] [stdout]     |                                       use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:330:22
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 330 |                 .map(Self::head)
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      use of generic parameter from outer function
[INFO] [stdout]     |                      use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:345:18
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 345 |     fn into_head(self) -> Option<(T, Self)> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  use of generic parameter from outer function
[INFO] [stdout]     |                  use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:345:35
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     |      - type parameter from outer function
[INFO] [stdout] ...
[INFO] [stdout] 345 |     fn into_head(self) -> Option<(T, Self)> {
[INFO] [stdout]     |        ---------                  ^ use of generic parameter from outer function
[INFO] [stdout]     |        |
[INFO] [stdout]     |        help: try using a local generic parameter instead: `into_head<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:345:38
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 345 |     fn into_head(self) -> Option<(T, Self)> {
[INFO] [stdout]     |                                      ^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      use of generic parameter from outer function
[INFO] [stdout]     |                                      use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:396:40
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     |      - type parameter from outer function
[INFO] [stdout] ...
[INFO] [stdout] 396 |     fn seq<I: IntoIterator<Item = Path<T>>>(ts: I) -> Self {
[INFO] [stdout]     |        --------------------------------^
[INFO] [stdout]     |        |                               |
[INFO] [stdout]     |        |                               use of generic parameter from outer function
[INFO] [stdout]     |        help: try using a local generic parameter instead: `seq<I: IntoIterator<Item = Path<T<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:396:55
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 396 |     fn seq<I: IntoIterator<Item = Path<T>>>(ts: I) -> Self {
[INFO] [stdout]     |                                                       ^^^^
[INFO] [stdout]     |                                                       |
[INFO] [stdout]     |                                                       use of generic parameter from outer function
[INFO] [stdout]     |                                                       use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:410:17
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 410 |     fn simplify(self) -> Self {
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 use of generic parameter from outer function
[INFO] [stdout]     |                 use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:410:26
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 410 |     fn simplify(self) -> Self {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          use of generic parameter from outer function
[INFO] [stdout]     |                          use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:414:24
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 414 |             Seq(ts) => Self::seq(ts.into_iter().map(Self::simplify)),
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        use of generic parameter from outer function
[INFO] [stdout]     |                        use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:414:53
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 414 |             Seq(ts) => Self::seq(ts.into_iter().map(Self::simplify)),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     use of generic parameter from outer function
[INFO] [stdout]     |                                                     use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0401]: can't use generic parameters from outer function
[INFO] [stdout]    --> src/bin/exploit.rs:428:17
[INFO] [stdout]     |
[INFO] [stdout] 252 | impl<T: PartialEq> Path<T> {
[INFO] [stdout]     | ---- `Self` type implicitly declared here, by this `impl`
[INFO] [stdout] ...
[INFO] [stdout] 428 |                 Self::seq(
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 use of generic parameter from outer function
[INFO] [stdout]     |                 use a type here instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `seq` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:219:33
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ variant or associated item `seq` not found here
[INFO] [stdout] ...
[INFO] [stdout] 219 |                 alts.push(Path::seq(vec![path(infos, prev), Path::Edge((prev, ptr))]));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 variant or associated item not found in `Path<_>`
[INFO] [stdout]     |                                 help: there is a variant with a similar name (notice the capitalization): `Seq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `seq` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:223:33
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ variant or associated item `seq` not found here
[INFO] [stdout] ...
[INFO] [stdout] 223 |                 alts.push(Path::seq(vec![path(infos, prev), Path::Edge((prev, ptr))]));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 variant or associated item not found in `Path<_>`
[INFO] [stdout]     |                                 help: there is a variant with a similar name (notice the capitalization): `Seq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `seq` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:225:26
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ variant or associated item `seq` not found here
[INFO] [stdout] ...
[INFO] [stdout] 225 |             return Path::seq(std::iter::once(Path::Alt(alts)).chain(seq.into_iter()));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          variant or associated item not found in `Path<_>`
[INFO] [stdout]     |                          help: there is a variant with a similar name (notice the capitalization): `Seq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `seq` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:234:11
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ variant or associated item `seq` not found here
[INFO] [stdout] ...
[INFO] [stdout] 234 |     Path::seq(seq.into_iter())
[INFO] [stdout]     |           ^^^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           variant or associated item not found in `Path<_>`
[INFO] [stdout]     |           help: there is a variant with a similar name (notice the capitalization): `Seq`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:287:29
[INFO] [stdout]     |
[INFO] [stdout] 281 | /                     match first.into_tail() {
[INFO] [stdout] 282 | |                         Some((x, v)) => {
[INFO] [stdout] 283 | |                             match x {
[INFO] [stdout] 284 | |                                 Seq(init) => ts.extend(init.into_iter()),
[INFO] [stdout] ...   |
[INFO] [stdout] 287 | |                             Some((Seq(ts), v))
[INFO] [stdout]     | |                             ^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Option`
[INFO] [stdout] 288 | |                         }
[INFO] [stdout] 289 | |                         None => None,
[INFO] [stdout] 290 | |                     }
[INFO] [stdout]     | |_____________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<(Path<T>, T)>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 287 |                             return Some((Seq(ts), v));
[INFO] [stdout]     |                             ++++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:292:21
[INFO] [stdout]     |
[INFO] [stdout] 280 | /                 if let Some(first) = ts.pop() {
[INFO] [stdout] 281 | |                     match first.into_tail() {
[INFO] [stdout] 282 | |                         Some((x, v)) => {
[INFO] [stdout] 283 | |                             match x {
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | |                     None
[INFO] [stdout]     | |                     ^^^^ expected `()`, found enum `Option`
[INFO] [stdout] 293 | |                 }
[INFO] [stdout]     | |_________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<_>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     return None;
[INFO] [stdout]     |                     ++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:316:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |  /         match self {
[INFO] [stdout] 278 |  |             Edge(e) => Some((Seq(vec![]), e)),
[INFO] [stdout] 279 |  |             Seq(mut ts) => {
[INFO] [stdout] 280 |  |                 if let Some(first) = ts.pop() {
[INFO] [stdout] ...    |
[INFO] [stdout] 316 | /|                 match tail {
[INFO] [stdout] 317 | ||                     None => None,
[INFO] [stdout] 318 | ||                     Some(tail) => Some((Alt(all), tail)),
[INFO] [stdout] 319 | ||                 }
[INFO] [stdout]     | ||_________________^ expected `()`, found enum `Option`
[INFO] [stdout] 320 |  |         }
[INFO] [stdout] 321 |  |     }
[INFO] [stdout]     |  |_____- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<(Path<T>, T)>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 };
[INFO] [stdout]     |                  +
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 321 |     };
[INFO] [stdout]     |      +
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 316 ~                 return match tail {
[INFO] [stdout] 317 |                     None => None,
[INFO] [stdout] 318 |                     Some(tail) => Some((Alt(all), tail)),
[INFO] [stdout] 319 ~                 };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:275:27
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn into_tail(self) -> Option<(Self, T)> {
[INFO] [stdout]     |        ---------          ^^^^^^^^^^^^^^^^^ expected enum `Option`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `Option<(Path<T>, T)>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_head` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:352:33
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ method `into_head` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 352 |                     match first.into_head() {
[INFO] [stdout]     |                                 ^^^^^^^^^ method not found in `Path<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:360:29
[INFO] [stdout]     |
[INFO] [stdout] 352 | /                     match first.into_head() {
[INFO] [stdout] 353 | |                         Some((v, x)) => {
[INFO] [stdout] 354 | |                             let mut ts = Vec::new();
[INFO] [stdout] 355 | |                             match x {
[INFO] [stdout] ...   |
[INFO] [stdout] 360 | |                             Some((v, Seq(ts)))
[INFO] [stdout]     | |                             ^^^^^^^^^^^^^^^^^^ expected `()`, found enum `Option`
[INFO] [stdout] 361 | |                         }
[INFO] [stdout] 362 | |                         None => None,
[INFO] [stdout] 363 | |                     }
[INFO] [stdout]     | |_____________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<(_, Path<_>)>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 360 |                             return Some((v, Seq(ts)));
[INFO] [stdout]     |                             ++++++                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:365:21
[INFO] [stdout]     |
[INFO] [stdout] 351 | /                 if let Some(first) = iter.next() {
[INFO] [stdout] 352 | |                     match first.into_head() {
[INFO] [stdout] 353 | |                         Some((v, x)) => {
[INFO] [stdout] 354 | |                             let mut ts = Vec::new();
[INFO] [stdout] ...   |
[INFO] [stdout] 365 | |                     None
[INFO] [stdout]     | |                     ^^^^ expected `()`, found enum `Option`
[INFO] [stdout] 366 | |                 }
[INFO] [stdout]     | |_________________- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<_>`
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 365 |                     return None;
[INFO] [stdout]     |                     ++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_head` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:372:48
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ method `into_head` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 372 |                     if let Some((v, rest)) = t.into_head() {
[INFO] [stdout]     |                                                ^^^^^^^^^ method not found in `Path<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/bin/exploit.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 347 |  /         match self {
[INFO] [stdout] 348 |  |             Edge(e) => Some((e, Seq(vec![]))),
[INFO] [stdout] 349 |  |             Seq(ts) => {
[INFO] [stdout] 350 |  |                 let mut iter = ts.into_iter();
[INFO] [stdout] ...    |
[INFO] [stdout] 389 | /|                 match head {
[INFO] [stdout] 390 | ||                     None => None,
[INFO] [stdout] 391 | ||                     Some(head) => Some((head, Alt(all))),
[INFO] [stdout] 392 | ||                 }
[INFO] [stdout]     | ||_________________^ expected `()`, found enum `Option`
[INFO] [stdout] 393 |  |         }
[INFO] [stdout] 394 |  |     }
[INFO] [stdout]     |  |_____- expected this to be `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `Option<(_, Path<_>)>`
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 392 |                 };
[INFO] [stdout]     |                  +
[INFO] [stdout] help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout] 394 |     };
[INFO] [stdout]     |      +
[INFO] [stdout] help: you might have meant to return this value
[INFO] [stdout]     |
[INFO] [stdout] 389 ~                 return match head {
[INFO] [stdout] 390 |                     None => None,
[INFO] [stdout] 391 |                     Some(head) => Some((head, Alt(all))),
[INFO] [stdout] 392 ~                 };
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/bin/exploit.rs:398:14
[INFO] [stdout]     |
[INFO] [stdout] 398 |             .into_iter()
[INFO] [stdout]     |              ^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_iter` found for type parameter `I` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:398:14
[INFO] [stdout]     |
[INFO] [stdout] 398 |             .into_iter()
[INFO] [stdout]     |              ^^^^^^^^^ method not found in `I`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `len` found for struct `Vec<_>` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:404:18
[INFO] [stdout]     |
[INFO] [stdout] 404 |         match ts.len() {
[INFO] [stdout]     |                  ^^^ private field, not a method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_iter` found for struct `Vec<_>` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:405:21
[INFO] [stdout]     |
[INFO] [stdout] 405 |             1 => ts.into_iter().next().unwrap(),
[INFO] [stdout]     |                     ^^^^^^^^^ method not found in `Vec<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simplify` found for enum `Path` in the current scope
[INFO] [stdout]    --> src/bin/exploit.rs:641:18
[INFO] [stdout]     |
[INFO] [stdout] 206 | enum Path<T> {
[INFO] [stdout]     | ------------ method `simplify` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 641 |                 .simplify();
[INFO] [stdout]     |                  ^^^^^^^^ method not found in `Path<Charset>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 36 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0308, E0401, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dr` due to 37 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eff809ecf63aaf2e706f706e778e6a6c220913d2744196c7753a34d61167eb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff809ecf63aaf2e706f706e778e6a6c220913d2744196c7753a34d61167eb90", kill_on_drop: false }`
[INFO] [stdout] eff809ecf63aaf2e706f706e778e6a6c220913d2744196c7753a34d61167eb90