[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 master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamii/rust-tagless on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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-2-tc1/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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f51ea61b0468739a3625e161a938dae70e1c7526b0686b50098dc3b607736d6
[INFO] running `Command { std: "docker" "start" "-a" "6f51ea61b0468739a3625e161a938dae70e1c7526b0686b50098dc3b607736d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f51ea61b0468739a3625e161a938dae70e1c7526b0686b50098dc3b607736d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f51ea61b0468739a3625e161a938dae70e1c7526b0686b50098dc3b607736d6", kill_on_drop: false }`
[INFO] [stdout] 6f51ea61b0468739a3625e161a938dae70e1c7526b0686b50098dc3b607736d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba0d51ac3b0497cf1aaedcb8f9f93f000b44bc58bb4f6c9c374526af85cc5b9e
[INFO] running `Command { std: "docker" "start" "-a" "ba0d51ac3b0497cf1aaedcb8f9f93f000b44bc58bb4f6c9c374526af85cc5b9e", kill_on_drop: false }`
[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: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: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: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: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: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: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: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:230:29
[INFO] [stdout]     |
[INFO] [stdout] 230 | / ...                   box move || {
[INFO] [stdout] 231 | | ...                       while bool1() {
[INFO] [stdout] 232 | | ...                           bool2();
[INFO] [stdout] 233 | | ...                       }
[INFO] [stdout] 234 | | ...                       false
[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] 232 +                                     bool2();
[INFO] [stdout] 233 +                                 }
[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] 241 | | ...                       }
[INFO] [stdout] 242 | | ...                       false
[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] 240 +                                     number2();
[INFO] [stdout] 241 +                                 }
[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: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: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: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: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: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: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: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: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: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: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: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: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: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: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: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: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: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] 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] 
[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[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: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: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:230:29
[INFO] [stdout]     |
[INFO] [stdout] 230 | / ...                   box move || {
[INFO] [stdout] 231 | | ...                       while bool1() {
[INFO] [stdout] 232 | | ...                           bool2();
[INFO] [stdout] 233 | | ...                       }
[INFO] [stdout] 234 | | ...                       false
[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] 232 +                                     bool2();
[INFO] [stdout] 233 +                                 }
[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] 241 | | ...                       }
[INFO] [stdout] 242 | | ...                       false
[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] 240 +                                     number2();
[INFO] [stdout] 241 +                                 }
[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: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: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: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: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: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:423:31
[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: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: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: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] 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] 
[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: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tagless` (bin "tagless" test) due to 29 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tagless` (bin "tagless") due to 29 previous errors
[INFO] running `Command { std: "docker" "inspect" "ba0d51ac3b0497cf1aaedcb8f9f93f000b44bc58bb4f6c9c374526af85cc5b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba0d51ac3b0497cf1aaedcb8f9f93f000b44bc58bb4f6c9c374526af85cc5b9e", kill_on_drop: false }`
[INFO] [stdout] ba0d51ac3b0497cf1aaedcb8f9f93f000b44bc58bb4f6c9c374526af85cc5b9e
[INFO] checking jamii/rust-tagless against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamii%2Frust-tagless" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamii/rust-tagless on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "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-2-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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f934ed464be24173d3bef19fa6b7654eb5f5087d14de5b5737b0a24181128617
[INFO] running `Command { std: "docker" "start" "-a" "f934ed464be24173d3bef19fa6b7654eb5f5087d14de5b5737b0a24181128617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f934ed464be24173d3bef19fa6b7654eb5f5087d14de5b5737b0a24181128617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f934ed464be24173d3bef19fa6b7654eb5f5087d14de5b5737b0a24181128617", kill_on_drop: false }`
[INFO] [stdout] f934ed464be24173d3bef19fa6b7654eb5f5087d14de5b5737b0a24181128617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dafc4bac91ea19135d6353523e1f617d80b5647adc7b71cca8f65315b13d708
[INFO] running `Command { std: "docker" "start" "-a" "9dafc4bac91ea19135d6353523e1f617d80b5647adc7b71cca8f65315b13d708", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "9dafc4bac91ea19135d6353523e1f617d80b5647adc7b71cca8f65315b13d708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dafc4bac91ea19135d6353523e1f617d80b5647adc7b71cca8f65315b13d708", kill_on_drop: false }`
[INFO] [stdout] 9dafc4bac91ea19135d6353523e1f617d80b5647adc7b71cca8f65315b13d708