[INFO] cloning repository https://github.com/notgull/futures-concurrency-benchmark [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notgull/futures-concurrency-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotgull%2Ffutures-concurrency-benchmark", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotgull%2Ffutures-concurrency-benchmark'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e9c5bf9ed4e84bc5f5c9c4099f53b20e06439b2a [INFO] checking notgull/futures-concurrency-benchmark against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotgull%2Ffutures-concurrency-benchmark" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/notgull/futures-concurrency-benchmark 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/notgull/futures-concurrency-benchmark [INFO] finished tweaking git repo https://github.com/notgull/futures-concurrency-benchmark [INFO] tweaked toml for git repo https://github.com/notgull/futures-concurrency-benchmark written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/notgull/futures-concurrency-benchmark 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unsend v0.2.1 [INFO] [stderr] Downloaded futures-concurrency v7.5.0 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 109e1923b69db038a96caffb0a67293f2be08ede641220b20cc0b079c5053743 [INFO] running `Command { std: "docker" "start" "-a" "109e1923b69db038a96caffb0a67293f2be08ede641220b20cc0b079c5053743", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "109e1923b69db038a96caffb0a67293f2be08ede641220b20cc0b079c5053743", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "109e1923b69db038a96caffb0a67293f2be08ede641220b20cc0b079c5053743", kill_on_drop: false }` [INFO] [stdout] 109e1923b69db038a96caffb0a67293f2be08ede641220b20cc0b079c5053743 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9d612aae445694c497a1d3a57fc719aa204febdd19139450d0d5680cdf32b7dc [INFO] running `Command { std: "docker" "start" "-a" "9d612aae445694c497a1d3a57fc719aa204febdd19139450d0d5680cdf32b7dc", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling serde_json v1.0.114 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Checking wyz v0.5.1 [INFO] [stderr] Checking half v2.4.0 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking fastrand v2.0.1 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Compiling syn v2.0.53 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking bitvec v1.0.1 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking smallvec v1.13.1 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking walkdir v2.5.0 [INFO] [stderr] Checking unsend v0.2.1 [INFO] [stderr] Checking async-executor v1.8.0 [INFO] [stderr] Checking clap v4.5.3 [INFO] [stderr] Checking is-terminal v0.4.12 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking regex v1.10.3 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Checking futures-concurrency v7.5.0 [INFO] [stderr] Checking futures-concurrency-benchmark v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.09s [INFO] running `Command { std: "docker" "inspect" "9d612aae445694c497a1d3a57fc719aa204febdd19139450d0d5680cdf32b7dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d612aae445694c497a1d3a57fc719aa204febdd19139450d0d5680cdf32b7dc", kill_on_drop: false }` [INFO] [stdout] 9d612aae445694c497a1d3a57fc719aa204febdd19139450d0d5680cdf32b7dc [INFO] checking notgull/futures-concurrency-benchmark against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotgull%2Ffutures-concurrency-benchmark" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/notgull/futures-concurrency-benchmark 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/notgull/futures-concurrency-benchmark [INFO] finished tweaking git repo https://github.com/notgull/futures-concurrency-benchmark [INFO] tweaked toml for git repo https://github.com/notgull/futures-concurrency-benchmark written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/notgull/futures-concurrency-benchmark 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-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2c1490e692cb75f9baf03cb78938419cf8fed80bc19571e471aaafa01e5c4d0e [INFO] running `Command { std: "docker" "start" "-a" "2c1490e692cb75f9baf03cb78938419cf8fed80bc19571e471aaafa01e5c4d0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2c1490e692cb75f9baf03cb78938419cf8fed80bc19571e471aaafa01e5c4d0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c1490e692cb75f9baf03cb78938419cf8fed80bc19571e471aaafa01e5c4d0e", kill_on_drop: false }` [INFO] [stdout] 2c1490e692cb75f9baf03cb78938419cf8fed80bc19571e471aaafa01e5c4d0e [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76a6a7ecfe4fab3bc07abc023101530a9450a5a8670d76eff0efb0337bbc2153 [INFO] running `Command { std: "docker" "start" "-a" "76a6a7ecfe4fab3bc07abc023101530a9450a5a8670d76eff0efb0337bbc2153", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Checking pin-project-lite v0.2.13 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling radium v0.7.0 [INFO] [stderr] Compiling serde_json v1.0.114 [INFO] [stderr] Checking tap v1.0.1 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking half v2.4.0 [INFO] [stderr] Checking wyz v0.5.1 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking funty v2.0.0 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking concurrent-queue v2.4.0 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking async-task v4.7.0 [INFO] [stderr] Checking fastrand v2.0.1 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking bitvec v1.0.1 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Compiling syn v2.0.53 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.13.0/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] Checking cast v0.3.0 [INFO] [stderr] Checking same-file v1.0.6 [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" "76a6a7ecfe4fab3bc07abc023101530a9450a5a8670d76eff0efb0337bbc2153", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76a6a7ecfe4fab3bc07abc023101530a9450a5a8670d76eff0efb0337bbc2153", kill_on_drop: false }` [INFO] [stdout] 76a6a7ecfe4fab3bc07abc023101530a9450a5a8670d76eff0efb0337bbc2153