[INFO] fetching crate stemjail 0.4.1...
[INFO] testing stemjail-0.4.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate stemjail 0.4.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate stemjail 0.4.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stemjail 0.4.1
[INFO] finished tweaking crates.io crate stemjail 0.4.1
[INFO] tweaked toml for crates.io crate stemjail 0.4.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b37a387953526e904dcccf87bb054ee9186482fdfd527d7302ee561777c76b2
[INFO] running `Command { std: "docker" "start" "-a" "2b37a387953526e904dcccf87bb054ee9186482fdfd527d7302ee561777c76b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b37a387953526e904dcccf87bb054ee9186482fdfd527d7302ee561777c76b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b37a387953526e904dcccf87bb054ee9186482fdfd527d7302ee561777c76b2", kill_on_drop: false }`
[INFO] [stdout] 2b37a387953526e904dcccf87bb054ee9186482fdfd527d7302ee561777c76b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ed94b20b8875a8056698df9c41fd6df3f9e4820108bf150e9cff2d6fe2f3d2d
[INFO] running `Command { std: "docker" "start" "-a" "5ed94b20b8875a8056698df9c41fd6df3f9e4820108bf150e9cff2d6fe2f3d2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling fd v0.2.3
[INFO] [stderr]    Compiling unix_socket v0.5.0
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling mnt v0.3.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling fdpass v0.1.0
[INFO] [stderr]    Compiling tty v0.4.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling stemflow v0.5.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tty-0.4.5/src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(process_exec)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tty` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate collections;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:153:51
[INFO] [stdout]     |
[INFO] [stdout] 153 |         match self.range(Bound::Included(access), Bound::Unbounded).next() {
[INFO] [stdout]     |                                                   ^^^^^ use of undeclared type `Bound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:165:44
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let dups: BTreeSet<_> = self.range(Bound::Unbounded, Bound::Included(&access)).rev()
[INFO] [stdout]     |                                            ^^^^^ use of undeclared type `Bound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:176:20
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.range(Bound::Unbounded, Bound::Included(&read_root))
[INFO] [stdout]     |                    ^^^^^ use of undeclared type `Bound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:182:49
[INFO] [stdout]     |
[INFO] [stdout] 182 |         self.range(Bound::Excluded(&read_root), Bound::Unbounded)
[INFO] [stdout]     |                                                 ^^^^^ use of undeclared type `Bound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Entry`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:381:17
[INFO] [stdout]     |
[INFO] [stdout] 381 |                 Entry::Vacant(view) => {
[INFO] [stdout]     |                 ^^^^^ use of undeclared type `Entry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Entry`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |                 Entry::Occupied(view) => {
[INFO] [stdout]     |                 ^^^^^ use of undeclared type `Entry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:404:72
[INFO] [stdout]     |
[INFO] [stdout] 404 |                 set2opt(self.ressources.range(Bound::Included(access), Bound::Unbounded).
[INFO] [stdout]     |                                                                        ^^^^^ use of undeclared type `Bound`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:151:26
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl<A> SetAccess<A> for BTreeSet<A> where A: Access {
[INFO] [stdout]     |                          ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:153:26
[INFO] [stdout]     |
[INFO] [stdout] 153 |         match self.range(Bound::Included(access), Bound::Unbounded).next() {
[INFO] [stdout]     |                          ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:165:19
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let dups: BTreeSet<_> = self.range(Bound::Unbounded, Bound::Included(&access)).rev()
[INFO] [stdout]     |                   ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:165:62
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let dups: BTreeSet<_> = self.range(Bound::Unbounded, Bound::Included(&access)).rev()
[INFO] [stdout]     |                                                              ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Range` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:173:36
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn range_read<'a>(&'a self) -> Range<'a, A> {
[INFO] [stdout]     |                                    ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::btree_map::Range;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::btree_set::Range;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Range;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:176:38
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.range(Bound::Unbounded, Bound::Included(&read_root))
[INFO] [stdout]     |                                      ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Range` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:179:37
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn range_write<'a>(&'a self) -> Range<'a, A> {
[INFO] [stdout]     |                                     ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::btree_map::Range;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::collections::btree_set::Range;
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Range;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/fs.rs:182:20
[INFO] [stdout]     |
[INFO] [stdout] 182 |         self.range(Bound::Excluded(&read_root), Bound::Unbounded)
[INFO] [stdout]     |                    ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 15  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Range` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:53:36
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn range_read<'a>(&'a self) -> Range<'a, A>;
[INFO] [stdout]    |                                    ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::collections::btree_map::Range;
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::collections::btree_set::Range;
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::ops::Range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Range` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:54:37
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn range_write<'a>(&'a self) -> Range<'a, A>;
[INFO] [stdout]    |                                     ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::collections::btree_map::Range;
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::collections::btree_set::Range;
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::ops::Range;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:106:21
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn set2opt<T>(list: BTreeSet<T>) -> Option<BTreeSet<T>> where T: Ord {
[INFO] [stdout]     |                     ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:106:44
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn set2opt<T>(list: BTreeSet<T>) -> Option<BTreeSet<T>> where T: Ord {
[INFO] [stdout]     |                                            ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:126:14
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub acl: BTreeSet<A>,
[INFO] [stdout]     |              ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:127:16
[INFO] [stdout]     |
[INFO] [stdout] 127 |     underlays: BTreeSet<Arc<Domain<A>>>,
[INFO] [stdout]     |                ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:164:49
[INFO] [stdout]     |
[INFO] [stdout] 164 |     fn new(name: String, kind: DomainKind, acl: BTreeSet<A>,
[INFO] [stdout]     |                                                 ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:165:23
[INFO] [stdout]     |
[INFO] [stdout] 165 |            underlays: BTreeSet<Arc<Domain<A>>>) -> Domain<A> {
[INFO] [stdout]     |                       ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:262:25
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn leaves(&self) -> BTreeSet<Self>;
[INFO] [stdout]     |                         ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:275:18
[INFO] [stdout]     |
[INFO] [stdout] 275 |         let acl: BTreeSet<_> = acl.into_iter().collect();
[INFO] [stdout]     |                  ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:38:21
[INFO] [stdout]     |
[INFO] [stdout] 38  |         let mut b = BTreeSet::new();
[INFO] [stdout]     |                     ^^^^^^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 283 |                 DomainKind::Intersection, acl, set!(self.clone(), other.clone()))))
[INFO] [stdout]     |                                                --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:316:25
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn leaves(&self) -> BTreeSet<Self> {
[INFO] [stdout]     |                         ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:38:21
[INFO] [stdout]     |
[INFO] [stdout] 38  |         let mut b = BTreeSet::new();
[INFO] [stdout]     |                     ^^^^^^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 318 |             set!(self.clone())
[INFO] [stdout]     |             ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:326:36
[INFO] [stdout]     |
[INFO] [stdout] 326 |         match self.underlays.range(Bound::Included(target), Bound::Included(target)).next() {
[INFO] [stdout]     |                                    ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:326:61
[INFO] [stdout]     |
[INFO] [stdout] 326 |         match self.underlays.range(Bound::Included(target), Bound::Included(target)).next() {
[INFO] [stdout]     |                                                             ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeMap` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:344:17
[INFO] [stdout]     |
[INFO] [stdout] 344 |     ressources: BTreeMap<A, BTreeSet<Arc<Domain<A>>>>,
[INFO] [stdout]     |                 ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeMap;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:344:29
[INFO] [stdout]     |
[INFO] [stdout] 344 |     ressources: BTreeMap<A, BTreeSet<Arc<Domain<A>>>>,
[INFO] [stdout]     |                             ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:345:14
[INFO] [stdout]     |
[INFO] [stdout] 345 |     domains: BTreeSet<Arc<Domain<A>>>,
[INFO] [stdout]     |              ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeMap`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:351:25
[INFO] [stdout]     |
[INFO] [stdout] 351 |             ressources: BTreeMap::new(),
[INFO] [stdout]     |                         ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeMap;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:352:22
[INFO] [stdout]     |
[INFO] [stdout] 352 |             domains: BTreeSet::new(),
[INFO] [stdout]     |                      ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BTreeSet` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:360:18
[INFO] [stdout]     |
[INFO] [stdout] 360 |         let acl: BTreeSet<_> = acl.uniquify().into_iter().collect();
[INFO] [stdout]     |                  ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:361:70
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let dom = Arc::new(Domain::new(name, DomainKind::Final, acl, BTreeSet::new()));
[INFO] [stdout]     |                                                                      ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:375:39
[INFO] [stdout]     |
[INFO] [stdout] 375 |             return self.domains.range(Bound::Included(&dom), Bound::Included(&dom)).
[INFO] [stdout]     |                                       ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:375:62
[INFO] [stdout]     |
[INFO] [stdout] 375 |             return self.domains.range(Bound::Included(&dom), Bound::Included(&dom)).
[INFO] [stdout]     |                                                              ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:38:21
[INFO] [stdout]     |
[INFO] [stdout] 38  |         let mut b = BTreeSet::new();
[INFO] [stdout]     |                     ^^^^^^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 382 |                     let _ = view.insert(set!(dom.clone()));
[INFO] [stdout]     |                                         ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `set` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Bound`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:404:47
[INFO] [stdout]     |
[INFO] [stdout] 404 |                 set2opt(self.ressources.range(Bound::Included(access), Bound::Unbounded).
[INFO] [stdout]     |                                               ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::ops::Bound;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BTreeSet`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:407:26
[INFO] [stdout]     |
[INFO] [stdout] 407 |                     fold(BTreeSet::new(), |prev, (_, v)| prev.union(v).cloned().collect()))
[INFO] [stdout]     |                          ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 24  | use std::collections::BTreeSet;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(btree_range)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(collections)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(collections_bound)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(collections)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:107:22
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn set2opt<T>(list: BTreeSet<T>) -> Option<BTreeSet<T>> where T: Ord {
[INFO] [stdout]     |            - this type parameter
[INFO] [stdout] 107 |     if list.len() == 0 {
[INFO] [stdout]     |                      ^ expected type parameter `T`, found integer
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `T`
[INFO] [stdout]                          found type `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:277:25
[INFO] [stdout]     |
[INFO] [stdout] 266 | impl<A> RefDomPriv for Arc<Domain<A>> where A: Access {
[INFO] [stdout]     |      - this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 277 |         if acl.len() == 0 {
[INFO] [stdout]     |                         ^ expected type parameter `A`, found integer
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                          found type `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:317:36
[INFO] [stdout]     |
[INFO] [stdout] 266 | impl<A> RefDomPriv for Arc<Domain<A>> where A: Access {
[INFO] [stdout]     |      - this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 317 |         if self.underlays.len() == 0 {
[INFO] [stdout]     |                                    ^ expected type parameter `A`, found integer
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                          found type `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 50 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0433, E0463, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stemflow` due to 51 previous errors
[INFO] running `Command { std: "docker" "inspect" "5ed94b20b8875a8056698df9c41fd6df3f9e4820108bf150e9cff2d6fe2f3d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ed94b20b8875a8056698df9c41fd6df3f9e4820108bf150e9cff2d6fe2f3d2d", kill_on_drop: false }`
[INFO] [stdout] 5ed94b20b8875a8056698df9c41fd6df3f9e4820108bf150e9cff2d6fe2f3d2d