[INFO] fetching crate ceratophrys 0.0.3...
[INFO] checking ceratophrys-0.0.3 against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798
[INFO] extracting crate ceratophrys 0.0.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ceratophrys 0.0.3 on toolchain 1280928a99ad3ef2c5735b42dc8852456ae3b974
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ceratophrys 0.0.3
[INFO] finished tweaking crates.io crate ceratophrys 0.0.3
[INFO] tweaked toml for crates.io crate ceratophrys 0.0.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded orfail v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc4fabe20f2768716a7b3df88b188ff3818b80a66be12da859e2f809822c59cd
[INFO] running `Command { std: "docker" "start" "-a" "fc4fabe20f2768716a7b3df88b188ff3818b80a66be12da859e2f809822c59cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc4fabe20f2768716a7b3df88b188ff3818b80a66be12da859e2f809822c59cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4fabe20f2768716a7b3df88b188ff3818b80a66be12da859e2f809822c59cd", kill_on_drop: false }`
[INFO] [stdout] fc4fabe20f2768716a7b3df88b188ff3818b80a66be12da859e2f809822c59cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef0d1a3156cb52072caaa850206892ef1cdc5d187d842ea1fb035f3ef70726d2
[INFO] running `Command { std: "docker" "start" "-a" "ef0d1a3156cb52072caaa850206892ef1cdc5d187d842ea1fb035f3ef70726d2", kill_on_drop: false }`
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking orfail v1.1.0
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking ceratophrys v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "ef0d1a3156cb52072caaa850206892ef1cdc5d187d842ea1fb035f3ef70726d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef0d1a3156cb52072caaa850206892ef1cdc5d187d842ea1fb035f3ef70726d2", kill_on_drop: false }`
[INFO] [stdout] ef0d1a3156cb52072caaa850206892ef1cdc5d187d842ea1fb035f3ef70726d2
[INFO] checking ceratophrys-0.0.3 against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798
[INFO] extracting crate ceratophrys 0.0.3 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ceratophrys 0.0.3 on toolchain 9b9e20bc79549d80ab413f49d990713851172cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ceratophrys 0.0.3
[INFO] finished tweaking crates.io crate ceratophrys 0.0.3
[INFO] tweaked toml for crates.io crate ceratophrys 0.0.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44092e9f57db7dbb1f8cf06d9b8ccd5e84ba6084842c2b064d69238cb42e382d
[INFO] running `Command { std: "docker" "start" "-a" "44092e9f57db7dbb1f8cf06d9b8ccd5e84ba6084842c2b064d69238cb42e382d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44092e9f57db7dbb1f8cf06d9b8ccd5e84ba6084842c2b064d69238cb42e382d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44092e9f57db7dbb1f8cf06d9b8ccd5e84ba6084842c2b064d69238cb42e382d", kill_on_drop: false }`
[INFO] [stdout] 44092e9f57db7dbb1f8cf06d9b8ccd5e84ba6084842c2b064d69238cb42e382d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8fb6b889c05fdcc26419f972a0d458d6af4f5a4b6110509f4a7f64dad23a283
[INFO] running `Command { std: "docker" "start" "-a" "d8fb6b889c05fdcc26419f972a0d458d6af4f5a4b6110509f4a7f64dad23a283", kill_on_drop: false }`
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking orfail v1.1.0
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking ceratophrys v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/image.rs:121:56
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| child.iter()))
[INFO] [stdout]     |                                               -------- ^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: IntoIterator`
[INFO] [stdout] note: required by a bound in `flat_map`
[INFO] [stdout]    --> /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/iter/traits/iterator.rs:1503:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| -> /* Type */ { child.iter() }))
[INFO] [stdout]     |                                                                +++++++++++++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/image.rs:121:56
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| child.iter()))
[INFO] [stdout]     |                                               -------- ^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: IntoIterator`
[INFO] [stdout] note: required by a bound in `flat_map`
[INFO] [stdout]    --> /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/iter/traits/iterator.rs:1503:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| -> /* Type */ { child.iter() }))
[INFO] [stdout]     |                                                                +++++++++++++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/image.rs:116:60
[INFO] [stdout]     |
[INFO] [stdout] 116 |       pub fn iter(&self) -> impl '_ + Iterator<Item = Pixel> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 117 | |         self.pixels
[INFO] [stdout] 118 | |             .iter()
[INFO] [stdout] 119 | |             .map(|(&position, &color)| Pixel::new(position, color))
[INFO] [stdout] ...   |
[INFO] [stdout] 123 | |             )
[INFO] [stdout] 124 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<Map<std::collections::btree_map::Iter<'_, Position, color::Color>, {closure@src/image.rs:119:18: 119:39}>, Box<dyn Iterator<Item = Pixel>>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/image.rs:121:70
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| child.iter()))
[INFO] [stdout]     |                                                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ceratophrys` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: concrete type differs from previous defining opaque type use
[INFO] [stdout]    --> src/image.rs:116:60
[INFO] [stdout]     |
[INFO] [stdout] 116 |       pub fn iter(&self) -> impl '_ + Iterator<Item = Pixel> {
[INFO] [stdout]     |  ____________________________________________________________^
[INFO] [stdout] 117 | |         self.pixels
[INFO] [stdout] 118 | |             .iter()
[INFO] [stdout] 119 | |             .map(|(&position, &color)| Pixel::new(position, color))
[INFO] [stdout] ...   |
[INFO] [stdout] 123 | |             )
[INFO] [stdout] 124 | |     }
[INFO] [stdout]     | |_____^ expected `{type error}`, got `std::iter::Chain<Map<std::collections::btree_map::Iter<'_, Position, Color>, {closure@src/image.rs:119:18: 119:39}>, Box<dyn Iterator<Item = Pixel>>>`
[INFO] [stdout]     |
[INFO] [stdout] note: previous use here
[INFO] [stdout]    --> src/image.rs:121:70
[INFO] [stdout]     |
[INFO] [stdout] 121 |                 Box::new(self.children.iter().flat_map(|child| child.iter()))
[INFO] [stdout]     |                                                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ceratophrys` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "d8fb6b889c05fdcc26419f972a0d458d6af4f5a4b6110509f4a7f64dad23a283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8fb6b889c05fdcc26419f972a0d458d6af4f5a4b6110509f4a7f64dad23a283", kill_on_drop: false }`
[INFO] [stdout] d8fb6b889c05fdcc26419f972a0d458d6af4f5a4b6110509f4a7f64dad23a283