[INFO] cloning repository https://github.com/yihuang/async-benchmark [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yihuang/async-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyihuang%2Fasync-benchmark", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyihuang%2Fasync-benchmark'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] eddfc5e220a1d2275bed30dcb757f1426931d475 [INFO] checking yihuang/async-benchmark against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyihuang%2Fasync-benchmark" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yihuang/async-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/yihuang/async-benchmark [INFO] finished tweaking git repo https://github.com/yihuang/async-benchmark [INFO] tweaked toml for git repo https://github.com/yihuang/async-benchmark written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yihuang/async-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 git repository `https://github.com/yihuang/tokio.git` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook v0.3.4 [INFO] [stderr] Downloaded async-fs v1.5.0 [INFO] [stderr] Downloaded async-net v1.5.0 [INFO] [stderr] Downloaded smol v1.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 114c9a1b50632472fc9d1c1554d546bd88e8a855d00ebd1fba37801ea75eb428 [INFO] running `Command { std: "docker" "start" "-a" "114c9a1b50632472fc9d1c1554d546bd88e8a855d00ebd1fba37801ea75eb428", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "114c9a1b50632472fc9d1c1554d546bd88e8a855d00ebd1fba37801ea75eb428", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "114c9a1b50632472fc9d1c1554d546bd88e8a855d00ebd1fba37801ea75eb428", kill_on_drop: false }` [INFO] [stdout] 114c9a1b50632472fc9d1c1554d546bd88e8a855d00ebd1fba37801ea75eb428 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7c788e51b14d3d4cad07dd248e3de80105538e81aa13551a671647325195565b [INFO] running `Command { std: "docker" "start" "-a" "7c788e51b14d3d4cad07dd248e3de80105538e81aa13551a671647325195565b", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.12 [INFO] [stderr] Checking pin-project-lite v0.2.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking futures-io v0.3.12 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling const_fn v0.4.5 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Compiling signal-hook v0.3.4 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking async-io v1.3.1 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling tokio v1.2.0 (https://github.com/yihuang/tokio.git?branch=zero-interval#361bff35) [INFO] [stderr] Checking parking_lot_core v0.8.2 [INFO] [stderr] Checking async-lock v2.3.0 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking byteorder v1.4.2 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking async-fs v1.5.0 [INFO] [stderr] Checking async-process v1.0.2 [INFO] [stderr] Checking async-net v1.5.0 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking mio v0.7.7 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking smol v1.2.5 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking plotters v0.3.0 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.5 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking tinytemplate v1.2.0 [INFO] [stderr] Compiling tokio-macros v1.1.0 (https://github.com/yihuang/tokio.git?branch=zero-interval#361bff35) [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stderr] Checking async-benchmark v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "7c788e51b14d3d4cad07dd248e3de80105538e81aa13551a671647325195565b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c788e51b14d3d4cad07dd248e3de80105538e81aa13551a671647325195565b", kill_on_drop: false }` [INFO] [stdout] 7c788e51b14d3d4cad07dd248e3de80105538e81aa13551a671647325195565b [INFO] checking yihuang/async-benchmark against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyihuang%2Fasync-benchmark" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yihuang/async-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/yihuang/async-benchmark [INFO] finished tweaking git repo https://github.com/yihuang/async-benchmark [INFO] tweaked toml for git repo https://github.com/yihuang/async-benchmark written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/yihuang/async-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6a9561199cd32841d6afc5a7994c2104ebb73a34b507b4bcca35ff9a07e8638c [INFO] running `Command { std: "docker" "start" "-a" "6a9561199cd32841d6afc5a7994c2104ebb73a34b507b4bcca35ff9a07e8638c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a9561199cd32841d6afc5a7994c2104ebb73a34b507b4bcca35ff9a07e8638c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a9561199cd32841d6afc5a7994c2104ebb73a34b507b4bcca35ff9a07e8638c", kill_on_drop: false }` [INFO] [stdout] 6a9561199cd32841d6afc5a7994c2104ebb73a34b507b4bcca35ff9a07e8638c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] acc2b827acb366719885929940711d3d275f1ea748b883048745e1c99c8b83f5 [INFO] running `Command { std: "docker" "start" "-a" "acc2b827acb366719885929940711d3d275f1ea748b883048745e1c99c8b83f5", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.12 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking pin-project-lite v0.2.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking futures-io v0.3.12 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling const_fn v0.4.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.11.3/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 v1.0.9 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.3.0/src/half_lock.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | unsafe { libc::abort() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling signal-hook v0.3.4 [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 `signal-hook-registry` (lib) 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 E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "acc2b827acb366719885929940711d3d275f1ea748b883048745e1c99c8b83f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acc2b827acb366719885929940711d3d275f1ea748b883048745e1c99c8b83f5", kill_on_drop: false }` [INFO] [stdout] acc2b827acb366719885929940711d3d275f1ea748b883048745e1c99c8b83f5