[INFO] cloning repository https://github.com/sumomoneko/hochwasser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sumomoneko/hochwasser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumomoneko%2Fhochwasser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumomoneko%2Fhochwasser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8a7d202309ba53f107d024c77b60b48f417002f3 [INFO] checking sumomoneko/hochwasser against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumomoneko%2Fhochwasser" "/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/sumomoneko/hochwasser on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sumomoneko/hochwasser [INFO] finished tweaking git repo https://github.com/sumomoneko/hochwasser [INFO] tweaked toml for git repo https://github.com/sumomoneko/hochwasser written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sumomoneko/hochwasser 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/sumomoneko/raw-socket` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e054f05d35ddfb5dea7aed31d1d93a8e4c9bb921004446aa62853c2fcd8f31c [INFO] running `Command { std: "docker" "start" "-a" "4e054f05d35ddfb5dea7aed31d1d93a8e4c9bb921004446aa62853c2fcd8f31c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e054f05d35ddfb5dea7aed31d1d93a8e4c9bb921004446aa62853c2fcd8f31c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e054f05d35ddfb5dea7aed31d1d93a8e4c9bb921004446aa62853c2fcd8f31c", kill_on_drop: false }` [INFO] [stdout] 4e054f05d35ddfb5dea7aed31d1d93a8e4c9bb921004446aa62853c2fcd8f31c [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=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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ce8ebb80e6062df4db32de65a4aa54b34dc321804a15452347efd8a34f87d10 [INFO] running `Command { std: "docker" "start" "-a" "9ce8ebb80e6062df4db32de65a4aa54b34dc321804a15452347efd8a34f87d10", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling futures-core v0.3.16 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling futures-task v0.3.16 [INFO] [stderr] Compiling futures-channel v0.3.16 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking futures-sink v0.3.16 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking futures-io v0.3.16 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Compiling futures-macro v0.3.16 [INFO] [stderr] Compiling futures-util v0.3.16 [INFO] [stderr] Compiling tokio v1.10.0 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking nix v0.22.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Compiling tokio-macros v1.3.0 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Checking thiserror v1.0.26 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking futures-executor v0.3.16 [INFO] [stderr] Checking futures v0.3.16 [INFO] [stderr] Checking raw-socket v0.0.2 (https://github.com/sumomoneko/raw-socket#90cf051c) [INFO] [stderr] Checking hochwasser v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.95s [INFO] running `Command { std: "docker" "inspect" "9ce8ebb80e6062df4db32de65a4aa54b34dc321804a15452347efd8a34f87d10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ce8ebb80e6062df4db32de65a4aa54b34dc321804a15452347efd8a34f87d10", kill_on_drop: false }` [INFO] [stdout] 9ce8ebb80e6062df4db32de65a4aa54b34dc321804a15452347efd8a34f87d10 [INFO] checking sumomoneko/hochwasser against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsumomoneko%2Fhochwasser" "/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/sumomoneko/hochwasser on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sumomoneko/hochwasser [INFO] finished tweaking git repo https://github.com/sumomoneko/hochwasser [INFO] tweaked toml for git repo https://github.com/sumomoneko/hochwasser written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sumomoneko/hochwasser 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4321a738c6ad489ad6fc60571bd0446115bb5c9f180e43a13b1dfb36bc0277d5 [INFO] running `Command { std: "docker" "start" "-a" "4321a738c6ad489ad6fc60571bd0446115bb5c9f180e43a13b1dfb36bc0277d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4321a738c6ad489ad6fc60571bd0446115bb5c9f180e43a13b1dfb36bc0277d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4321a738c6ad489ad6fc60571bd0446115bb5c9f180e43a13b1dfb36bc0277d5", kill_on_drop: false }` [INFO] [stdout] 4321a738c6ad489ad6fc60571bd0446115bb5c9f180e43a13b1dfb36bc0277d5 [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=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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e0825ae7f59fa6e36a6f15ab2b1ffb6886371e2f192b0af23614b595e9a3f8e7 [INFO] running `Command { std: "docker" "start" "-a" "e0825ae7f59fa6e36a6f15ab2b1ffb6886371e2f192b0af23614b595e9a3f8e7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling futures-core v0.3.16 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling futures-channel v0.3.16 [INFO] [stderr] Compiling futures-task v0.3.16 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking futures-sink v0.3.16 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking futures-io v0.3.16 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling futures-macro v0.3.16 [INFO] [stderr] Compiling futures-util v0.3.16 [INFO] [stderr] Compiling tokio v1.10.0 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking nix v0.22.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Compiling tokio-macros v1.3.0 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling thiserror-impl v1.0.26 [INFO] [stderr] Checking thiserror v1.0.26 [INFO] [stderr] Checking structopt v0.3.22 [INFO] [stderr] Checking futures-executor v0.3.16 [INFO] [stderr] Checking futures v0.3.16 [INFO] [stderr] Checking raw-socket v0.0.2 (https://github.com/sumomoneko/raw-socket#90cf051c) [INFO] [stderr] Checking hochwasser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> src/main.rs:147:10 [INFO] [stdout] | [INFO] [stdout] 147 | .try_collect()?; [INFO] [stdout] | ^^^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `Result<_, _>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `itertools::Itertools::try_collect` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/itertools-0.10.1/src/lib.rs:2010:23 [INFO] [stdout] | [INFO] [stdout] 2007 | fn try_collect(self) -> Result [INFO] [stdout] | ----------- required by a bound in this associated function [INFO] [stdout] ... [INFO] [stdout] 2010 | Result: FromIterator>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Itertools::try_collect` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> src/main.rs:147:10 [INFO] [stdout] | [INFO] [stdout] 147 | .try_collect()?; [INFO] [stdout] | ^^^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!`, which is required by `Result<_, _>: FromIterator>` [INFO] [stdout] = help: the trait `FromIterator>` is implemented for `Result` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #48950 for more information) [INFO] [stdout] = help: did you intend to use the type `()` here instead? [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `itertools::Itertools::try_collect` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/itertools-0.10.1/src/lib.rs:2010:23 [INFO] [stdout] | [INFO] [stdout] 2007 | fn try_collect(self) -> Result [INFO] [stdout] | ----------- required by a bound in this associated function [INFO] [stdout] ... [INFO] [stdout] 2010 | Result: FromIterator>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Itertools::try_collect` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hochwasser` (bin "hochwasser") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `hochwasser` (bin "hochwasser" test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e0825ae7f59fa6e36a6f15ab2b1ffb6886371e2f192b0af23614b595e9a3f8e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0825ae7f59fa6e36a6f15ab2b1ffb6886371e2f192b0af23614b595e9a3f8e7", kill_on_drop: false }` [INFO] [stdout] e0825ae7f59fa6e36a6f15ab2b1ffb6886371e2f192b0af23614b595e9a3f8e7