[INFO] cloning repository https://github.com/jamii/rust-tagless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamii/rust-tagless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/jamii/rust-tagless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamii/rust-tagless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0d27595de7b911fd06e2572f1049225a2ac9193
[INFO] checking jamii/rust-tagless against try#da4929024a7261062885cb3209c9d7fdc919d233 for pr-135536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamii/rust-tagless on toolchain da4929024a7261062885cb3209c9d7fdc919d233
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jamii/rust-tagless
[INFO] finished tweaking git repo https://github.com/jamii/rust-tagless
[INFO] tweaked toml for git repo https://github.com/jamii/rust-tagless written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jamii/rust-tagless already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5183e92146ff9ea054e7318215e1fa87c08d4a96c12a1855fac3579219ee6bc6
[INFO] running `Command { std: "docker" "start" "-a" "5183e92146ff9ea054e7318215e1fa87c08d4a96c12a1855fac3579219ee6bc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5183e92146ff9ea054e7318215e1fa87c08d4a96c12a1855fac3579219ee6bc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5183e92146ff9ea054e7318215e1fa87c08d4a96c12a1855fac3579219ee6bc6", kill_on_drop: false }`
[INFO] [stdout] 5183e92146ff9ea054e7318215e1fa87c08d4a96c12a1855fac3579219ee6bc6
[INFO] checking jamii/rust-tagless against try#da4929024a7261062885cb3209c9d7fdc919d233 for pr-135536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamii/rust-tagless on toolchain da4929024a7261062885cb3209c9d7fdc919d233
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jamii/rust-tagless
[INFO] finished tweaking git repo https://github.com/jamii/rust-tagless
[INFO] tweaked toml for git repo https://github.com/jamii/rust-tagless written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jamii/rust-tagless already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/overlay2/0336dce5ca65ddf1654ec7715c619a4605190ad9ab9aab0b91b15e3a417536a4-init/.tmp-lower2032870815: no space left on device
[INFO] checking jamii/rust-tagless against try#da4929024a7261062885cb3209c9d7fdc919d233 for pr-135536
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamii/rust-tagless on toolchain da4929024a7261062885cb3209c9d7fdc919d233
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jamii/rust-tagless
[INFO] finished tweaking git repo https://github.com/jamii/rust-tagless
[INFO] tweaked toml for git repo https://github.com/jamii/rust-tagless written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jamii/rust-tagless already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0907524350e9e7bcf38453573b85df6b136a90764172b577a263d52af1cde03d
[INFO] running `Command { std: "docker" "start" "-a" "0907524350e9e7bcf38453573b85df6b136a90764172b577a263d52af1cde03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0907524350e9e7bcf38453573b85df6b136a90764172b577a263d52af1cde03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0907524350e9e7bcf38453573b85df6b136a90764172b577a263d52af1cde03d", kill_on_drop: false }`
[INFO] [stdout] 0907524350e9e7bcf38453573b85df6b136a90764172b577a263d52af1cde03d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+da4929024a7261062885cb3209c9d7fdc919d233" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 072f88dd94423f6e9072d31d7dc03d67a11c722f778d214933f8e9ff013f105e
[INFO] running `Command { std: "docker" "start" "-a" "072f88dd94423f6e9072d31d7dc03d67a11c722f778d214933f8e9ff013f105e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking tagless v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:124:65
[INFO] [stdout]     |
[INFO] [stdout] 124 |         Expr::Constant(Value::Number(number)) => Staged::Number(box move || number),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 124 |         Expr::Constant(Value::Number(number)) => Staged::Number(Box::new(move || number)),
[INFO] [stdout]     |                                                                 ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:125:59
[INFO] [stdout]     |
[INFO] [stdout] 125 |         Expr::Constant(Value::Bool(bool)) => Staged::Bool(box move || bool),
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 125 |         Expr::Constant(Value::Bool(bool)) => Staged::Bool(Box::new(move || bool)),
[INFO] [stdout]     |                                                           ~~~~~~~~~            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:124:65
[INFO] [stdout]     |
[INFO] [stdout] 124 |         Expr::Constant(Value::Number(number)) => Staged::Number(box move || number),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 124 |         Expr::Constant(Value::Number(number)) => Staged::Number(Box::new(move || number)),
[INFO] [stdout]     |                                                                 ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:130:86
[INFO] [stdout]     |
[INFO] [stdout] 130 |                   (Staged::Number(number1), Staged::Number(number2)) => Staged::Number(box move || {
[INFO] [stdout]     |  ______________________________________________________________________________________^
[INFO] [stdout] 131 | |                     number1() + number2()
[INFO] [stdout] 132 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 130 ~                 (Staged::Number(number1), Staged::Number(number2)) => Staged::Number(Box::new(move || {
[INFO] [stdout] 131 |                     number1() + number2()
[INFO] [stdout] 132 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:125:59
[INFO] [stdout]     |
[INFO] [stdout] 125 |         Expr::Constant(Value::Bool(bool)) => Staged::Bool(box move || bool),
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 125 |         Expr::Constant(Value::Bool(bool)) => Staged::Bool(Box::new(move || bool)),
[INFO] [stdout]     |                                                           ~~~~~~~~~            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:140:84
[INFO] [stdout]     |
[INFO] [stdout] 140 |                   (Staged::Number(number1), Staged::Number(number2)) => Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________________________________________________________^
[INFO] [stdout] 141 | |                     number1() < number2()
[INFO] [stdout] 142 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 ~                 (Staged::Number(number1), Staged::Number(number2)) => Staged::Bool(Box::new(move || {
[INFO] [stdout] 141 |                     number1() < number2()
[INFO] [stdout] 142 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:155:29
[INFO] [stdout]     |
[INFO] [stdout] 155 | ...                   box move || number_cell.set(number())
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 155 |                             Box::new(move || number_cell.set(number()))
[INFO] [stdout]     |                             ~~~~~~~~~                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:130:86
[INFO] [stdout]     |
[INFO] [stdout] 130 |                   (Staged::Number(number1), Staged::Number(number2)) => Staged::Number(box move || {
[INFO] [stdout]     |  ______________________________________________________________________________________^
[INFO] [stdout] 131 | |                     number1() + number2()
[INFO] [stdout] 132 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 130 ~                 (Staged::Number(number1), Staged::Number(number2)) => Staged::Number(Box::new(move || {
[INFO] [stdout] 131 |                     number1() + number2()
[INFO] [stdout] 132 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 | ...                   box move || bool_cell.set(bool())
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 165 |                             Box::new(move || bool_cell.set(bool()))
[INFO] [stdout]     |                             ~~~~~~~~~                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:140:84
[INFO] [stdout]     |
[INFO] [stdout] 140 |                   (Staged::Number(number1), Staged::Number(number2)) => Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________________________________________________________^
[INFO] [stdout] 141 | |                     number1() < number2()
[INFO] [stdout] 142 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 140 ~                 (Staged::Number(number1), Staged::Number(number2)) => Staged::Bool(Box::new(move || {
[INFO] [stdout] 141 |                     number1() < number2()
[INFO] [stdout] 142 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:172:58
[INFO] [stdout]     |
[INFO] [stdout] 172 |                   Staged::Number(number) => Staged::Number(box move || {
[INFO] [stdout]     |  __________________________________________________________^
[INFO] [stdout] 173 | |                     staged_let();
[INFO] [stdout] 174 | |                     number()
[INFO] [stdout] 175 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 172 ~                 Staged::Number(number) => Staged::Number(Box::new(move || {
[INFO] [stdout] 173 |                     staged_let();
[INFO] [stdout] 174 |                     number()
[INFO] [stdout] 175 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:176:52
[INFO] [stdout]     |
[INFO] [stdout] 176 |                   Staged::Bool(bool) => Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 177 | |                     staged_let();
[INFO] [stdout] 178 | |                     bool()
[INFO] [stdout] 179 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 176 ~                 Staged::Bool(bool) => Staged::Bool(Box::new(move || {
[INFO] [stdout] 177 |                     staged_let();
[INFO] [stdout] 178 |                     bool()
[INFO] [stdout] 179 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:155:29
[INFO] [stdout]     |
[INFO] [stdout] 155 | ...                   box move || number_cell.set(number())
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 155 |                             Box::new(move || number_cell.set(number()))
[INFO] [stdout]     |                             ~~~~~~~~~                                 +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 | ...                   box move || bool_cell.set(bool())
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 165 |                             Box::new(move || bool_cell.set(bool()))
[INFO] [stdout]     |                             ~~~~~~~~~                             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:186:36
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     Staged::Number(box move || number_cell.get())
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     Staged::Number(Box::new(move || number_cell.get()))
[INFO] [stdout]     |                                    ~~~~~~~~~                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:190:34
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     Staged::Bool(box move || bool_cell.get())
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     Staged::Bool(Box::new(move || bool_cell.get()))
[INFO] [stdout]     |                                  ~~~~~~~~~                       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:172:58
[INFO] [stdout]     |
[INFO] [stdout] 172 |                   Staged::Number(number) => Staged::Number(box move || {
[INFO] [stdout]     |  __________________________________________________________^
[INFO] [stdout] 173 | |                     staged_let();
[INFO] [stdout] 174 | |                     number()
[INFO] [stdout] 175 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 172 ~                 Staged::Number(number) => Staged::Number(Box::new(move || {
[INFO] [stdout] 173 |                     staged_let();
[INFO] [stdout] 174 |                     number()
[INFO] [stdout] 175 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:176:52
[INFO] [stdout]     |
[INFO] [stdout] 176 |                   Staged::Bool(bool) => Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________________________^
[INFO] [stdout] 177 | |                     staged_let();
[INFO] [stdout] 178 | |                     bool()
[INFO] [stdout] 179 | |                 }),
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 176 ~                 Staged::Bool(bool) => Staged::Bool(Box::new(move || {
[INFO] [stdout] 177 |                     staged_let();
[INFO] [stdout] 178 |                     bool()
[INFO] [stdout] 179 ~                 })),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:201:44
[INFO] [stdout]     |
[INFO] [stdout] 201 |   ...                   Staged::Number(box move || {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 202 | | ...                       let number = number();
[INFO] [stdout] 203 | | ...                       number_cell.set(number);
[INFO] [stdout] 204 | | ...                       number
[INFO] [stdout] 205 | | ...                   })
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 201 ~                             Staged::Number(Box::new(move || {
[INFO] [stdout] 202 |                                 let number = number();
[INFO] [stdout] 203 |                                 number_cell.set(number);
[INFO] [stdout] 204 |                                 number
[INFO] [stdout] 205 ~                             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:186:36
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     Staged::Number(box move || number_cell.get())
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 186 |                     Staged::Number(Box::new(move || number_cell.get()))
[INFO] [stdout]     |                                    ~~~~~~~~~                         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:214:42
[INFO] [stdout]     |
[INFO] [stdout] 214 |   ...                   Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________^
[INFO] [stdout] 215 | | ...                       let bool = bool();
[INFO] [stdout] 216 | | ...                       bool_cell.set(bool);
[INFO] [stdout] 217 | | ...                       bool
[INFO] [stdout] 218 | | ...                   })
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 214 ~                             Staged::Bool(Box::new(move || {
[INFO] [stdout] 215 |                                 let bool = bool();
[INFO] [stdout] 216 |                                 bool_cell.set(bool);
[INFO] [stdout] 217 |                                 bool
[INFO] [stdout] 218 ~                             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:190:34
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     Staged::Bool(box move || bool_cell.get())
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     Staged::Bool(Box::new(move || bool_cell.get()))
[INFO] [stdout]     |                                  ~~~~~~~~~                       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:230:29
[INFO] [stdout]     |
[INFO] [stdout] 230 | / ...                   box move || {
[INFO] [stdout] 231 | | ...                       while bool1() {
[INFO] [stdout] 232 | | ...                           bool2();
[INFO] [stdout] ...   |
[INFO] [stdout] 235 | | ...                   }
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 230 ~                             Box::new(move || {
[INFO] [stdout] 231 |                                 while bool1() {
[INFO] [stdout] ...
[INFO] [stdout] 234 |                                 false
[INFO] [stdout] 235 ~                             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:201:44
[INFO] [stdout]     |
[INFO] [stdout] 201 |   ...                   Staged::Number(box move || {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 202 | | ...                       let number = number();
[INFO] [stdout] 203 | | ...                       number_cell.set(number);
[INFO] [stdout] 204 | | ...                       number
[INFO] [stdout] 205 | | ...                   })
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 201 ~                             Staged::Number(Box::new(move || {
[INFO] [stdout] 202 |                                 let number = number();
[INFO] [stdout] 203 |                                 number_cell.set(number);
[INFO] [stdout] 204 |                                 number
[INFO] [stdout] 205 ~                             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:238:29
[INFO] [stdout]     |
[INFO] [stdout] 238 | / ...                   box move || {
[INFO] [stdout] 239 | | ...                       while bool1() {
[INFO] [stdout] 240 | | ...                           number2();
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | | ...                   }
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 238 ~                             Box::new(move || {
[INFO] [stdout] 239 |                                 while bool1() {
[INFO] [stdout] ...
[INFO] [stdout] 242 |                                 false
[INFO] [stdout] 243 ~                             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:263:28
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let box1: Box<F> = box staged;
[INFO] [stdout]     |                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let box1: Box<F> = Box::new(staged);
[INFO] [stdout]     |                            ~~~~~~~~~      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:214:42
[INFO] [stdout]     |
[INFO] [stdout] 214 |   ...                   Staged::Bool(box move || {
[INFO] [stdout]     |  ____________________________________^
[INFO] [stdout] 215 | | ...                       let bool = bool();
[INFO] [stdout] 216 | | ...                       bool_cell.set(bool);
[INFO] [stdout] 217 | | ...                       bool
[INFO] [stdout] 218 | | ...                   })
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 214 ~                             Staged::Bool(Box::new(move || {
[INFO] [stdout] 215 |                                 let bool = bool();
[INFO] [stdout] 216 |                                 bool_cell.set(bool);
[INFO] [stdout] 217 |                                 bool
[INFO] [stdout] 218 ~                             }))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:264:30
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let box2: Box<Any> = box box1 as Box<Any>;
[INFO] [stdout]     |                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let box2: Box<Any> = Box::new(box1) as Box<Any>;
[INFO] [stdout]     |                              ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:230:29
[INFO] [stdout]     |
[INFO] [stdout] 230 | / ...                   box move || {
[INFO] [stdout] 231 | | ...                       while bool1() {
[INFO] [stdout] 232 | | ...                           bool2();
[INFO] [stdout] ...   |
[INFO] [stdout] 235 | | ...                   }
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 230 ~                             Box::new(move || {
[INFO] [stdout] 231 |                                 while bool1() {
[INFO] [stdout] ...
[INFO] [stdout] 234 |                                 false
[INFO] [stdout] 235 ~                             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:238:29
[INFO] [stdout]     |
[INFO] [stdout] 238 | / ...                   box move || {
[INFO] [stdout] 239 | | ...                       while bool1() {
[INFO] [stdout] 240 | | ...                           number2();
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | | ...                   }
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 238 ~                             Box::new(move || {
[INFO] [stdout] 239 |                                 while bool1() {
[INFO] [stdout] ...
[INFO] [stdout] 242 |                                 false
[INFO] [stdout] 243 ~                             })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:394:47
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let box1: Box<Runnable<Output = T>> = box runnable;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let box1: Box<Runnable<Output = T>> = Box::new(runnable);
[INFO] [stdout]     |                                               ~~~~~~~~~        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:263:28
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let box1: Box<F> = box staged;
[INFO] [stdout]     |                            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let box1: Box<F> = Box::new(staged);
[INFO] [stdout]     |                            ~~~~~~~~~      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:395:30
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let box2: Box<Any> = box box1 as Box<Any>;
[INFO] [stdout]     |                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let box2: Box<Any> = Box::new(box1) as Box<Any>;
[INFO] [stdout]     |                              ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:264:30
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let box2: Box<Any> = box box1 as Box<Any>;
[INFO] [stdout]     |                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let box2: Box<Any> = Box::new(box1) as Box<Any>;
[INFO] [stdout]     |                              ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         box Expr::Constant(Value::Number(1)),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 418 |         Box::new(Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |         ~~~~~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:32
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(Box::new(Expr::Get("i")), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:52
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), Box::new(Expr::Constant(Value::Number(1000)))),
[INFO] [stdout]     |                                                    ~~~~~~~~~                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:394:47
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let box1: Box<Runnable<Output = T>> = box runnable;
[INFO] [stdout]     |                                               ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let box1: Box<Runnable<Output = T>> = Box::new(runnable);
[INFO] [stdout]     |                                               ~~~~~~~~~        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             Box::new(Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000)))),
[INFO] [stdout]     |             ~~~~~~~~~                                                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:395:30
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let box2: Box<Any> = box box1 as Box<Any>;
[INFO] [stdout]     |                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 395 |         let box2: Box<Any> = Box::new(box1) as Box<Any>;
[INFO] [stdout]     |                              ~~~~~~~~~    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:31
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(Box::new(Expr::Get("i")), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                               ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         box Expr::Constant(Value::Number(1)),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 418 |         Box::new(Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |         ~~~~~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:51
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), Box::new(Expr::Constant(Value::Number(1)))),
[INFO] [stdout]     |                                                   ~~~~~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:32
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(Box::new(Expr::Get("i")), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:52
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), Box::new(Expr::Constant(Value::Number(1000)))),
[INFO] [stdout]     |                                                    ~~~~~~~~~                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 420 |             Box::new(Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000)))),
[INFO] [stdout]     |             ~~~~~~~~~                                                                           +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 Box::new(Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1)))),
[INFO] [stdout]     |                 ~~~~~~~~~                                                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:31
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(Box::new(Expr::Get("i")), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                               ~~~~~~~~~              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 421 | /             box Expr::Set(
[INFO] [stdout] 422 | |                 "i",
[INFO] [stdout] 423 | |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 | |             ),
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 421 ~             Box::new(Expr::Set(
[INFO] [stdout] 422 |                 "i",
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 ~             )),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:51
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), Box::new(Expr::Constant(Value::Number(1)))),
[INFO] [stdout]     |                                                   ~~~~~~~~~                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 | /         box Expr::While(
[INFO] [stdout] 420 | |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout] 421 | |             box Expr::Set(
[INFO] [stdout] 422 | |                 "i",
[INFO] [stdout] 423 | |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 | |             ),
[INFO] [stdout] 425 | |         ),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 419 ~         Box::new(Expr::While(
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout] ...
[INFO] [stdout] 424 |             ),
[INFO] [stdout] 425 ~         )),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 Box::new(Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1)))),
[INFO] [stdout]     |                 ~~~~~~~~~                                                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 421 | /             box Expr::Set(
[INFO] [stdout] 422 | |                 "i",
[INFO] [stdout] 423 | |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 | |             ),
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 421 ~             Box::new(Expr::Set(
[INFO] [stdout] 422 |                 "i",
[INFO] [stdout] 423 |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 ~             )),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/main.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 | /         box Expr::While(
[INFO] [stdout] 420 | |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout] 421 | |             box Expr::Set(
[INFO] [stdout] 422 | |                 "i",
[INFO] [stdout] 423 | |                 box Expr::Add(box Expr::Get("i"), box Expr::Constant(Value::Number(1))),
[INFO] [stdout] 424 | |             ),
[INFO] [stdout] 425 | |         ),
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 419 ~         Box::new(Expr::While(
[INFO] [stdout] 420 |             box Expr::LessThan(box Expr::Get("i"), box Expr::Constant(Value::Number(1000))),
[INFO] [stdout] ...
[INFO] [stdout] 424 |             ),
[INFO] [stdout] 425 ~         )),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             while true {
[INFO] [stdout]    |             ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]   --> src/main.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             while true {
[INFO] [stdout]    |             ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     Number(Box<Fn() -> i64>),
[INFO] [stdout]     |                ^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     Number(Box<dyn Fn() -> i64>),
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:119:14
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Bool(Box<Fn() -> bool>),
[INFO] [stdout]     |              ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Bool(Box<dyn Fn() -> bool>),
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |     value: Box<Any>,
[INFO] [stdout]     |                ^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     value: Box<dyn Any>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:298:16
[INFO] [stdout]     |
[INFO] [stdout] 298 |     expr1: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 298 |     expr1: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:299:16
[INFO] [stdout]     |
[INFO] [stdout] 299 |     expr2: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 |     expr2: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     expr1: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 310 |     expr1: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:311:16
[INFO] [stdout]     |
[INFO] [stdout] 311 |     expr2: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 311 |     expr2: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:323:16
[INFO] [stdout]     |
[INFO] [stdout] 323 |     expr1: Box<Runnable<Output = T1>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 323 |     expr1: Box<dyn Runnable<Output = T1>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     Number(Box<Fn() -> i64>),
[INFO] [stdout]     |                ^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     Number(Box<dyn Fn() -> i64>),
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |     expr2: Box<Runnable<Output = T2>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 324 |     expr2: Box<dyn Runnable<Output = T2>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:119:14
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Bool(Box<Fn() -> bool>),
[INFO] [stdout]     |              ^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Bool(Box<dyn Fn() -> bool>),
[INFO] [stdout]     |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:354:15
[INFO] [stdout]     |
[INFO] [stdout] 354 |     expr: Box<Runnable<Output = T>>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 354 |     expr: Box<dyn Runnable<Output = T>>,
[INFO] [stdout]     |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |     value: Box<Any>,
[INFO] [stdout]     |                ^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     value: Box<dyn Any>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:370:16
[INFO] [stdout]     |
[INFO] [stdout] 370 |     expr1: Box<Runnable<Output = bool>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 370 |     expr1: Box<dyn Runnable<Output = bool>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:298:16
[INFO] [stdout]     |
[INFO] [stdout] 298 |     expr1: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 298 |     expr1: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:371:16
[INFO] [stdout]     |
[INFO] [stdout] 371 |     expr2: Box<Runnable<Output = T>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 371 |     expr2: Box<dyn Runnable<Output = T>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:385:16
[INFO] [stdout]     |
[INFO] [stdout] 385 |     value: Box<Any>,
[INFO] [stdout]     |                ^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 385 |     value: Box<dyn Any>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:299:16
[INFO] [stdout]     |
[INFO] [stdout] 299 |     expr2: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 299 |     expr2: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:310:16
[INFO] [stdout]     |
[INFO] [stdout] 310 |     expr1: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 310 |     expr1: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:311:16
[INFO] [stdout]     |
[INFO] [stdout] 311 |     expr2: Box<Runnable<Output = i64>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 311 |     expr2: Box<dyn Runnable<Output = i64>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:323:16
[INFO] [stdout]     |
[INFO] [stdout] 323 |     expr1: Box<Runnable<Output = T1>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 323 |     expr1: Box<dyn Runnable<Output = T1>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |     expr2: Box<Runnable<Output = T2>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 324 |     expr2: Box<dyn Runnable<Output = T2>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:354:15
[INFO] [stdout]     |
[INFO] [stdout] 354 |     expr: Box<Runnable<Output = T>>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 354 |     expr: Box<dyn Runnable<Output = T>>,
[INFO] [stdout]     |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:370:16
[INFO] [stdout]     |
[INFO] [stdout] 370 |     expr1: Box<Runnable<Output = bool>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 370 |     expr1: Box<dyn Runnable<Output = bool>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:371:16
[INFO] [stdout]     |
[INFO] [stdout] 371 |     expr2: Box<Runnable<Output = T>>,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 371 |     expr2: Box<dyn Runnable<Output = T>>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:385:16
[INFO] [stdout]     |
[INFO] [stdout] 385 |     value: Box<Any>,
[INFO] [stdout]     |                ^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 385 |     value: Box<dyn Any>,
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:268:31
[INFO] [stdout]     |
[INFO] [stdout] 268 |     fn unwrap<T>(self) -> Box<Fn() -> T + 'static>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 268 |     fn unwrap<T>(self) -> Box<dyn Fn() -> T + 'static>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:399:31
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn unwrap<T>(self) -> Box<Runnable<Output = T>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn unwrap<T>(self) -> Box<dyn Runnable<Output = T>>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:268:31
[INFO] [stdout]     |
[INFO] [stdout] 268 |     fn unwrap<T>(self) -> Box<Fn() -> T + 'static>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 268 |     fn unwrap<T>(self) -> Box<dyn Fn() -> T + 'static>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:399:31
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn unwrap<T>(self) -> Box<Runnable<Output = T>>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn unwrap<T>(self) -> Box<dyn Runnable<Output = T>>
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tagless` (bin "tagless") due to 28 previous errors; 16 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tagless` (bin "tagless" test) due to 28 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "072f88dd94423f6e9072d31d7dc03d67a11c722f778d214933f8e9ff013f105e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072f88dd94423f6e9072d31d7dc03d67a11c722f778d214933f8e9ff013f105e", kill_on_drop: false }`
[INFO] [stdout] 072f88dd94423f6e9072d31d7dc03d67a11c722f778d214933f8e9ff013f105e