[INFO] fetching crate forr 0.2.2... [INFO] checking forr-0.2.2 against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798 [INFO] extracting crate forr 0.2.2 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate forr 0.2.2 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 forr 0.2.2 [INFO] finished tweaking crates.io crate forr 0.2.2 [INFO] tweaked toml for crates.io crate forr 0.2.2 written to /workspace/builds/worker-4-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 manyhow-macros v0.6.0 [INFO] [stderr] Downloaded manyhow v0.6.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7d38cb6a264973cb2cb138fd7116ec281999affa846b072acad6ecc7a6af5e46 [INFO] running `Command { std: "docker" "start" "-a" "7d38cb6a264973cb2cb138fd7116ec281999affa846b072acad6ecc7a6af5e46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d38cb6a264973cb2cb138fd7116ec281999affa846b072acad6ecc7a6af5e46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d38cb6a264973cb2cb138fd7116ec281999affa846b072acad6ecc7a6af5e46", kill_on_drop: false }` [INFO] [stdout] 7d38cb6a264973cb2cb138fd7116ec281999affa846b072acad6ecc7a6af5e46 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] abaf9c92eaf7b4b26ab7f0d0af990a0ae93d19b60fb68d72d3eb9971f2014d17 [INFO] running `Command { std: "docker" "start" "-a" "abaf9c92eaf7b4b26ab7f0d0af990a0ae93d19b60fb68d72d3eb9971f2014d17", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling smallvec v1.13.1 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Checking quote v1.0.35 [INFO] [stderr] Checking proc-macro-utils v0.8.0 [INFO] [stderr] Compiling manyhow-macros v0.6.0 [INFO] [stderr] Checking manyhow v0.6.0 [INFO] [stderr] Checking forr v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.43s [INFO] running `Command { std: "docker" "inspect" "abaf9c92eaf7b4b26ab7f0d0af990a0ae93d19b60fb68d72d3eb9971f2014d17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "abaf9c92eaf7b4b26ab7f0d0af990a0ae93d19b60fb68d72d3eb9971f2014d17", kill_on_drop: false }` [INFO] [stdout] abaf9c92eaf7b4b26ab7f0d0af990a0ae93d19b60fb68d72d3eb9971f2014d17 [INFO] checking forr-0.2.2 against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798 [INFO] extracting crate forr 0.2.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate forr 0.2.2 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 forr 0.2.2 [INFO] finished tweaking crates.io crate forr 0.2.2 [INFO] tweaked toml for crates.io crate forr 0.2.2 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ccf1140b46d712c7834ee0b5279d93a8955bb0f5e4f124a479e5740fdf494fdd [INFO] running `Command { std: "docker" "start" "-a" "ccf1140b46d712c7834ee0b5279d93a8955bb0f5e4f124a479e5740fdf494fdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ccf1140b46d712c7834ee0b5279d93a8955bb0f5e4f124a479e5740fdf494fdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ccf1140b46d712c7834ee0b5279d93a8955bb0f5e4f124a479e5740fdf494fdd", kill_on_drop: false }` [INFO] [stdout] ccf1140b46d712c7834ee0b5279d93a8955bb0f5e4f124a479e5740fdf494fdd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6423cd2f1b62384a9bc2ed5408200e4d08e65e792ccb2fdecc782727544105df [INFO] running `Command { std: "docker" "start" "-a" "6423cd2f1b62384a9bc2ed5408200e4d08e65e792ccb2fdecc782727544105df", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling smallvec v1.13.1 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Checking quote v1.0.35 [INFO] [stderr] Checking proc-macro-utils v0.8.0 [INFO] [stderr] Compiling manyhow-macros v0.6.0 [INFO] [stderr] Checking manyhow v0.6.0 [INFO] [stderr] Checking forr v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [INFO] [stdout] | ^^^^^^^^ cannot infer type of the type parameter `U` declared on the method `flat_map` [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: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map::(Vars::idents)) [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [INFO] [stdout] | ^^^^^^^^ cannot infer type of the type parameter `U` declared on the method `flat_map` [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: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map::(Vars::idents)) [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [INFO] [stdout] | ^^^^^^^^ cannot infer type of the type parameter `U` declared on the method `flat_map` [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: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map::(Vars::idents)) [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: concrete type differs from previous defining opaque type use [INFO] [stdout] --> src/forr.rs:445:58 [INFO] [stdout] | [INFO] [stdout] 445 | fn idents(&self) -> impl Iterator + '_ { [INFO] [stdout] | __________________________________________________________^ [INFO] [stdout] 446 | | let box_: Box> = match self { [INFO] [stdout] 447 | | Vars::Single(Var { name, .. }) => Box::new(iter::once(name.clone())), [INFO] [stdout] 448 | | Vars::Tuple(vars, _) | Vars::Plain(vars) => { [INFO] [stdout] ... | [INFO] [stdout] 452 | | box_ [INFO] [stdout] 453 | | } [INFO] [stdout] | |_____^ expected `{type error}`, got `Box>` [INFO] [stdout] | [INFO] [stdout] note: previous use here [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [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 `forr` (lib) 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/forr.rs:445:58 [INFO] [stdout] | [INFO] [stdout] 445 | fn idents(&self) -> impl Iterator + '_ { [INFO] [stdout] | __________________________________________________________^ [INFO] [stdout] 446 | | let box_: Box> = match self { [INFO] [stdout] 447 | | Vars::Single(Var { name, .. }) => Box::new(iter::once(name.clone())), [INFO] [stdout] 448 | | Vars::Tuple(vars, _) | Vars::Plain(vars) => { [INFO] [stdout] ... | [INFO] [stdout] 452 | | box_ [INFO] [stdout] 453 | | } [INFO] [stdout] | |_____^ expected `{type error}`, got `Box>` [INFO] [stdout] | [INFO] [stdout] note: previous use here [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [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 `forr` (lib) due to 3 previous errors [INFO] [stdout] error: concrete type differs from previous defining opaque type use [INFO] [stdout] --> src/forr.rs:445:58 [INFO] [stdout] | [INFO] [stdout] 445 | fn idents(&self) -> impl Iterator + '_ { [INFO] [stdout] | __________________________________________________________^ [INFO] [stdout] 446 | | let box_: Box> = match self { [INFO] [stdout] 447 | | Vars::Single(Var { name, .. }) => Box::new(iter::once(name.clone())), [INFO] [stdout] 448 | | Vars::Tuple(vars, _) | Vars::Plain(vars) => { [INFO] [stdout] ... | [INFO] [stdout] 452 | | box_ [INFO] [stdout] 453 | | } [INFO] [stdout] | |_____^ expected `{type error}`, got `Box>` [INFO] [stdout] | [INFO] [stdout] note: previous use here [INFO] [stdout] --> src/forr.rs:449:38 [INFO] [stdout] | [INFO] [stdout] 449 | Box::new(vars.iter().flat_map(Vars::idents)) [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 `forr` (lib test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "6423cd2f1b62384a9bc2ed5408200e4d08e65e792ccb2fdecc782727544105df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6423cd2f1b62384a9bc2ed5408200e4d08e65e792ccb2fdecc782727544105df", kill_on_drop: false }` [INFO] [stdout] 6423cd2f1b62384a9bc2ed5408200e4d08e65e792ccb2fdecc782727544105df