[INFO] cloning repository https://github.com/da-x/foldity [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/da-x/foldity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fda-x%2Ffoldity", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fda-x%2Ffoldity'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f81ff1d6fe441b8d6c8a45262c73f79e53cecd83 [INFO] checking da-x/foldity against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fda-x%2Ffoldity" "/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/da-x/foldity on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/da-x/foldity [INFO] finished tweaking git repo https://github.com/da-x/foldity [INFO] tweaked toml for git repo https://github.com/da-x/foldity written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/da-x/foldity 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-ctrlc v1.2.0 [INFO] [stderr] Downloaded async-std v1.7.0 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 68975c8badbf7a7c7bdcef86e2783a76e58d95e740201d446edde135d574aabd [INFO] running `Command { std: "docker" "start" "-a" "68975c8badbf7a7c7bdcef86e2783a76e58d95e740201d446edde135d574aabd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68975c8badbf7a7c7bdcef86e2783a76e58d95e740201d446edde135d574aabd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68975c8badbf7a7c7bdcef86e2783a76e58d95e740201d446edde135d574aabd", kill_on_drop: false }` [INFO] [stdout] 68975c8badbf7a7c7bdcef86e2783a76e58d95e740201d446edde135d574aabd [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 050ba18dff67eeb2d5837072ee892411c7de21bee9dd9ff33c4f9b7b90ae81b4 [INFO] running `Command { std: "docker" "start" "-a" "050ba18dff67eeb2d5837072ee892411c7de21bee9dd9ff33c4f9b7b90ae81b4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking futures-core v0.3.7 [INFO] [stderr] Checking futures-io v0.3.7 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Checking futures-sink v0.3.7 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Checking futures-channel v0.3.7 [INFO] [stderr] Checking futures-task v0.3.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking async-executor v1.3.0 [INFO] [stderr] Compiling anyhow v1.0.34 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking async-io v1.1.10 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking termion v1.5.5 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking async-global-executor v1.4.3 [INFO] [stderr] Checking async-std v1.7.0 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Checking shell-escape v0.1.5 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking ctrlc v3.1.7 [INFO] [stderr] Checking async-ctrlc v1.2.0 [INFO] [stderr] Compiling pin-project-internal v1.0.1 [INFO] [stderr] Compiling futures-macro v0.3.7 [INFO] [stderr] Compiling structopt-derive v0.4.13 [INFO] [stderr] Compiling thiserror-impl v1.0.22 [INFO] [stderr] Checking thiserror v1.0.22 [INFO] [stderr] Checking pin-project v1.0.1 [INFO] [stderr] Checking futures-util v0.3.7 [INFO] [stderr] Checking structopt v0.3.20 [INFO] [stderr] Checking futures-executor v0.3.7 [INFO] [stderr] Checking futures v0.3.7 [INFO] [stderr] Checking foldity v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/program.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/program.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `child` is never read [INFO] [stdout] --> src/program.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Program { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | pub child: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `child` is never read [INFO] [stdout] --> src/program.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Program { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | pub child: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.64s [INFO] running `Command { std: "docker" "inspect" "050ba18dff67eeb2d5837072ee892411c7de21bee9dd9ff33c4f9b7b90ae81b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "050ba18dff67eeb2d5837072ee892411c7de21bee9dd9ff33c4f9b7b90ae81b4", kill_on_drop: false }` [INFO] [stdout] 050ba18dff67eeb2d5837072ee892411c7de21bee9dd9ff33c4f9b7b90ae81b4 [INFO] checking da-x/foldity against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fda-x%2Ffoldity" "/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/da-x/foldity on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/da-x/foldity [INFO] finished tweaking git repo https://github.com/da-x/foldity [INFO] tweaked toml for git repo https://github.com/da-x/foldity written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/da-x/foldity 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9fa0632e1cfee896375c6eef12ff27aee8372b33496f2132f956f7b77d40108f [INFO] running `Command { std: "docker" "start" "-a" "9fa0632e1cfee896375c6eef12ff27aee8372b33496f2132f956f7b77d40108f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9fa0632e1cfee896375c6eef12ff27aee8372b33496f2132f956f7b77d40108f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9fa0632e1cfee896375c6eef12ff27aee8372b33496f2132f956f7b77d40108f", kill_on_drop: false }` [INFO] [stdout] 9fa0632e1cfee896375c6eef12ff27aee8372b33496f2132f956f7b77d40108f [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89d698524fdbcc9d1b171765882764e4254c87fda1544576e28e1f5ec2731b9b [INFO] running `Command { std: "docker" "start" "-a" "89d698524fdbcc9d1b171765882764e4254c87fda1544576e28e1f5ec2731b9b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.7 [INFO] [stderr] Checking futures-io v0.3.7 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Checking futures-sink v0.3.7 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Checking futures-channel v0.3.7 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Checking futures-task v0.3.7 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Compiling anyhow v1.0.34 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.11.2/src/future.rs:469:27 [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err(|_| unreachable!()).unwrap(); [INFO] [stdout] | ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err::(|_| unreachable!()).unwrap(); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "89d698524fdbcc9d1b171765882764e4254c87fda1544576e28e1f5ec2731b9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89d698524fdbcc9d1b171765882764e4254c87fda1544576e28e1f5ec2731b9b", kill_on_drop: false }` [INFO] [stdout] 89d698524fdbcc9d1b171765882764e4254c87fda1544576e28e1f5ec2731b9b