[INFO] cloning repository https://github.com/bielr/biotrees-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bielr/biotrees-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbielr%2Fbiotrees-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbielr%2Fbiotrees-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f832804f9a4d4dc24e1c165cf0362387a4115d60
[INFO] testing bielr/biotrees-rs against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbielr%2Fbiotrees-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bielr/biotrees-rs on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bielr/biotrees-rs
[INFO] finished tweaking git repo https://github.com/bielr/biotrees-rs
[INFO] tweaked toml for git repo https://github.com/bielr/biotrees-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 902da7dc781b2dbe2ee69b69b670e05b2e0c6c21770fe7fc7dcf5aaa38ab4629
[INFO] running `Command { std: "docker" "start" "-a" "902da7dc781b2dbe2ee69b69b670e05b2e0c6c21770fe7fc7dcf5aaa38ab4629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "902da7dc781b2dbe2ee69b69b670e05b2e0c6c21770fe7fc7dcf5aaa38ab4629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "902da7dc781b2dbe2ee69b69b670e05b2e0c6c21770fe7fc7dcf5aaa38ab4629", kill_on_drop: false }`
[INFO] [stdout] 902da7dc781b2dbe2ee69b69b670e05b2e0c6c21770fe7fc7dcf5aaa38ab4629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 023b91c188d7217a21009f9d894ecc3be7da6a033fe7c2a33bbd5fbe04180094
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "023b91c188d7217a21009f9d894ecc3be7da6a033fe7c2a33bbd5fbe04180094", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling once_cell v0.1.8
[INFO] [stderr]    Compiling cached v0.8.1
[INFO] [stderr]    Compiling biotrees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fmt_newick_leaf_str(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fmt_newick(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 try!(f.write_str("("));
[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/phylo/newick.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 try!(ts[0].fmt_newick(f));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(f.write_str(","));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     try!(t.fmt_newick(f))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:127:48
[INFO] [stdout]     |
[INFO] [stdout] 127 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:131:48
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:141:33
[INFO] [stdout]     |
[INFO] [stdout] 141 |         where F: Fn(&Self, &mut Iterator<Item=R>) -> R,
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:36
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self, &mut Iterator<Item=R>) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:51
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.81s
[INFO] running `Command { std: "docker" "inspect" "023b91c188d7217a21009f9d894ecc3be7da6a033fe7c2a33bbd5fbe04180094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023b91c188d7217a21009f9d894ecc3be7da6a033fe7c2a33bbd5fbe04180094", kill_on_drop: false }`
[INFO] [stdout] 023b91c188d7217a21009f9d894ecc3be7da6a033fe7c2a33bbd5fbe04180094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b8b560230e2c4e67be7b9ac6f41a2406259b57287b7a716c11a1344b6d8b431
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b8b560230e2c4e67be7b9ac6f41a2406259b57287b7a716c11a1344b6d8b431", kill_on_drop: false }`
[INFO] [stderr]    Compiling biotrees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fmt_newick_leaf_str(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fmt_newick(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 try!(f.write_str("("));
[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/phylo/newick.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 try!(ts[0].fmt_newick(f));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(f.write_str(","));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     try!(t.fmt_newick(f))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:127:48
[INFO] [stdout]     |
[INFO] [stdout] 127 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:131:48
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:141:33
[INFO] [stdout]     |
[INFO] [stdout] 141 |         where F: Fn(&Self, &mut Iterator<Item=R>) -> R,
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:36
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self, &mut Iterator<Item=R>) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:51
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sym_desc_half`
[INFO] [stdout]   --> examples/enum_balance.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn sym_desc_half(t: &Shape) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sym_desc`
[INFO] [stdout]   --> examples/enum_balance.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn sym_desc(t: &Shape) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `depth_avg`
[INFO] [stdout]   --> examples/enum_balance.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn depth_avg<T>(t: &Phylo<T>) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `depth_var`
[INFO] [stdout]   --> examples/enum_balance.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn depth_var<T>(t: &Phylo<T>) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn fmt_newick_leaf_str(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/phylo/newick.rs:20:26
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn fmt_newick(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 try!(f.write_str("("));
[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/phylo/newick.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 try!(ts[0].fmt_newick(f));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     try!(f.write_str(","));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/phylo/newick.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     try!(t.fmt_newick(f))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:127:48
[INFO] [stdout]     |
[INFO] [stdout] 127 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:131:48
[INFO] [stdout]     |
[INFO] [stdout] 131 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:141:33
[INFO] [stdout]     |
[INFO] [stdout] 141 |         where F: Fn(&Self, &mut Iterator<Item=R>) -> R,
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:36
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self, &mut Iterator<Item=R>) -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/phylo/mod.rs:147:51
[INFO] [stdout]     |
[INFO] [stdout] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "2b8b560230e2c4e67be7b9ac6f41a2406259b57287b7a716c11a1344b6d8b431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b8b560230e2c4e67be7b9ac6f41a2406259b57287b7a716c11a1344b6d8b431", kill_on_drop: false }`
[INFO] [stdout] 2b8b560230e2c4e67be7b9ac6f41a2406259b57287b7a716c11a1344b6d8b431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b432a332f86900edf1737ca2261404a7eb589b45c8f45d8ef1f14d9831f65961
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b432a332f86900edf1737ca2261404a7eb589b45c8f45d8ef1f14d9831f65961", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/phylo/newick.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn fmt_newick_leaf_str(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/phylo/newick.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn fmt_newick(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 try!(f.write_str("("));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 try!(ts[0].fmt_newick(f));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     try!(f.write_str(","));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     try!(t.fmt_newick(f))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:127:48
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:131:48
[INFO] [stderr]     |
[INFO] [stderr] 131 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:141:33
[INFO] [stderr]     |
[INFO] [stderr] 141 |         where F: Fn(&Self, &mut Iterator<Item=R>) -> R,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:147:36
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self, &mut Iterator<Item=R>) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:147:51
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/phylo/newick.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn fmt_newick_leaf_str(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/phylo/newick.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn fmt_newick(&self, &mut fmt::Formatter) -> fmt::Result;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut fmt::Formatter`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 try!(f.write_str("("));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 try!(ts[0].fmt_newick(f));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     try!(f.write_str(","));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/phylo/newick.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     try!(t.fmt_newick(f))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:127:48
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:131:48
[INFO] [stderr]     |
[INFO] [stderr] 131 |                     let f_ref = &mut f as &mut FnMut(&Self, R, R) -> R;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&Self, R, R) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:141:33
[INFO] [stderr]     |
[INFO] [stderr] 141 |         where F: Fn(&Self, &mut Iterator<Item=R>) -> R,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:147:36
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self, &mut Iterator<Item=R>) -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/phylo/mod.rs:147:51
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 let f_ref = &f as &Fn(&Self, &mut Iterator<Item=R>) -> R;
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=R>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sym_desc_half`
[INFO] [stderr]   --> examples/enum_balance.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn sym_desc_half(t: &Shape) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sym_desc`
[INFO] [stderr]   --> examples/enum_balance.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn sym_desc(t: &Shape) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `depth_avg`
[INFO] [stderr]   --> examples/enum_balance.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn depth_avg<T>(t: &Phylo<T>) -> f64 {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `depth_var`
[INFO] [stderr]   --> examples/enum_balance.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn depth_var<T>(t: &Phylo<T>) -> f64 {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/biotrees-37c64e3d94f34e4a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests biotrees
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b432a332f86900edf1737ca2261404a7eb589b45c8f45d8ef1f14d9831f65961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b432a332f86900edf1737ca2261404a7eb589b45c8f45d8ef1f14d9831f65961", kill_on_drop: false }`
[INFO] [stdout] b432a332f86900edf1737ca2261404a7eb589b45c8f45d8ef1f14d9831f65961