[INFO] cloning repository https://github.com/lolgeny/Crab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolgeny/Crab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2FCrab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2FCrab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cf5e1be64f31b6a0b347033af657ef8e38ff9a0
[INFO] checking lolgeny/Crab against master#4ecd70ddd1039a3954056c1071e40278048476fa for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2FCrab" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lolgeny/Crab on toolchain 4ecd70ddd1039a3954056c1071e40278048476fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lolgeny/Crab
[INFO] finished tweaking git repo https://github.com/lolgeny/Crab
[INFO] tweaked toml for git repo https://github.com/lolgeny/Crab written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lolgeny/Crab 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" "+4ecd70ddd1039a3954056c1071e40278048476fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dbea2a0f09539ae7e4fbedf034044e1f1c0a1f958063de9477f5034e68dc32a
[INFO] running `Command { std: "docker" "start" "-a" "5dbea2a0f09539ae7e4fbedf034044e1f1c0a1f958063de9477f5034e68dc32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dbea2a0f09539ae7e4fbedf034044e1f1c0a1f958063de9477f5034e68dc32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbea2a0f09539ae7e4fbedf034044e1f1c0a1f958063de9477f5034e68dc32a", kill_on_drop: false }`
[INFO] [stdout] 5dbea2a0f09539ae7e4fbedf034044e1f1c0a1f958063de9477f5034e68dc32a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c401f8493edb9572517d91fec44e5eaa95c15b490b4076ba5ed552755144c27d
[INFO] running `Command { std: "docker" "start" "-a" "c401f8493edb9572517d91fec44e5eaa95c15b490b4076ba5ed552755144c27d", kill_on_drop: false }`
[INFO] [stderr]     Checking crab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias, box_syntax, box_patterns)]
[INFO] [stdout]   |                         ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias, box_syntax, box_patterns)]
[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/eval.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         box self.clone()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 10 -         box self.clone()
[INFO] [stdout] 10 +         Box::new(self.clone())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         None => box (0..).map(|x|x as f64)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 79 -         None => box (0..).map(|x|x as f64)
[INFO] [stdout] 79 +         None => Box::new((0..).map(|x|x as f64))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |     stack.push(Iter(box (1..).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 143 -     stack.push(Iter(box (1..).map(|x|x as f64)));
[INFO] [stdout] 143 +     stack.push(Iter(Box::new((1..).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |     stack.push(Iter(box (1..=n).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 147 -     stack.push(Iter(box (1..=n).map(|x|x as f64)));
[INFO] [stdout] 147 +     stack.push(Iter(Box::new((1..=n).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |     stack.push(Iter(box (start..).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -     stack.push(Iter(box (start..).map(|x|x as f64)));
[INFO] [stdout] 151 +     stack.push(Iter(Box::new((start..).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:163:21
[INFO] [stdout]     |
[INFO] [stdout] 163 |     stack.push(Iter(box it.take(n as usize)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 163 -     stack.push(Iter(box it.take(n as usize)));
[INFO] [stdout] 163 +     stack.push(Iter(Box::new(it.take(n as usize))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:168:29
[INFO] [stdout]     |
[INFO] [stdout] 168 |             stack.push(Iter(box (0..(n as i64)).map(|x|x as f64)));
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 168 -             stack.push(Iter(box (0..(n as i64)).map(|x|x as f64)));
[INFO] [stdout] 168 +             stack.push(Iter(Box::new((0..(n as i64)).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |     stack.push(Iter(box filtered));
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 195 -     stack.push(Iter(box filtered));
[INFO] [stdout] 195 +     stack.push(Iter(Box::new(filtered)));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:199:21
[INFO] [stdout]     |
[INFO] [stdout] 199 |       stack.push(Iter(box it.map(move |n| {
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 200 | |         let mut stack = vec![Number(n)];
[INFO] [stdout] 201 | |         eval(f.clone(), &mut stack);
[INFO] [stdout] 202 | |         pop_number(&mut stack)
[INFO] [stdout] 203 | |     })));
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 199 ~     stack.push(Iter(Box::new(it.map(move |n| {
[INFO] [stdout] 200 |         let mut stack = vec![Number(n)];
[INFO] [stdout] 201 |         eval(f.clone(), &mut stack);
[INFO] [stdout] 202 |         pop_number(&mut stack)
[INFO] [stdout] 203 ~     }))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         box self.clone()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 10 -         box self.clone()
[INFO] [stdout] 10 +         Box::new(self.clone())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/eval.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |         None => box (0..).map(|x|x as f64)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 79 -         None => box (0..).map(|x|x as f64)
[INFO] [stdout] 79 +         None => Box::new((0..).map(|x|x as f64))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |     stack.push(Iter(box (1..).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 143 -     stack.push(Iter(box (1..).map(|x|x as f64)));
[INFO] [stdout] 143 +     stack.push(Iter(Box::new((1..).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |     stack.push(Iter(box (1..=n).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 147 -     stack.push(Iter(box (1..=n).map(|x|x as f64)));
[INFO] [stdout] 147 +     stack.push(Iter(Box::new((1..=n).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |     stack.push(Iter(box (start..).map(|x|x as f64)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 151 -     stack.push(Iter(box (start..).map(|x|x as f64)));
[INFO] [stdout] 151 +     stack.push(Iter(Box::new((start..).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:163:21
[INFO] [stdout]     |
[INFO] [stdout] 163 |     stack.push(Iter(box it.take(n as usize)));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 163 -     stack.push(Iter(box it.take(n as usize)));
[INFO] [stdout] 163 +     stack.push(Iter(Box::new(it.take(n as usize))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:168:29
[INFO] [stdout]     |
[INFO] [stdout] 168 |             stack.push(Iter(box (0..(n as i64)).map(|x|x as f64)));
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 168 -             stack.push(Iter(box (0..(n as i64)).map(|x|x as f64)));
[INFO] [stdout] 168 +             stack.push(Iter(Box::new((0..(n as i64)).map(|x|x as f64))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |     stack.push(Iter(box filtered));
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 195 -     stack.push(Iter(box filtered));
[INFO] [stdout] 195 +     stack.push(Iter(Box::new(filtered)));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/eval.rs:199:21
[INFO] [stdout]     |
[INFO] [stdout] 199 |       stack.push(Iter(box it.map(move |n| {
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 200 | |         let mut stack = vec![Number(n)];
[INFO] [stdout] 201 | |         eval(f.clone(), &mut stack);
[INFO] [stdout] 202 | |         pop_number(&mut stack)
[INFO] [stdout] 203 | |     })));
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 199 ~     stack.push(Iter(Box::new(it.map(move |n| {
[INFO] [stdout] 200 |         let mut stack = vec![Number(n)];
[INFO] [stdout] 201 |         eval(f.clone(), &mut stack);
[INFO] [stdout] 202 |         pop_number(&mut stack)
[INFO] [stdout] 203 ~     }))));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![deny(rust_2018_idioms, rustdoc)]
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `panic_fmt`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(panic_fmt)]
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `rustdoc` has been removed: use `rustdoc::all` instead
[INFO] [stdout]  --> src/main.rs:2:27
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![deny(rust_2018_idioms, rustdoc)]
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `panic_fmt`
[INFO] [stdout]  --> src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(panic_fmt)]
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crab` (bin "crab") due to 10 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `crab` (bin "crab" test) due to 10 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c401f8493edb9572517d91fec44e5eaa95c15b490b4076ba5ed552755144c27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c401f8493edb9572517d91fec44e5eaa95c15b490b4076ba5ed552755144c27d", kill_on_drop: false }`
[INFO] [stdout] c401f8493edb9572517d91fec44e5eaa95c15b490b4076ba5ed552755144c27d