[INFO] cloning repository https://github.com/shfty-rust/playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shfty-rust/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshfty-rust%2Fplayground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshfty-rust%2Fplayground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3331283d791be7ba326f7a5810cd7ab9c4186cd9 [INFO] checking shfty-rust/playground against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshfty-rust%2Fplayground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shfty-rust/playground 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/shfty-rust/playground [INFO] finished tweaking git repo https://github.com/shfty-rust/playground [INFO] tweaked toml for git repo https://github.com/shfty-rust/playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/shfty-rust/playground 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 polling v2.0.3 [INFO] [stderr] Downloaded async-attributes v1.1.2 [INFO] [stderr] Downloaded hermit-abi v0.1.16 [INFO] [stderr] Downloaded rayon-core v1.8.1 [INFO] [stderr] Downloaded rayon v1.4.1 [INFO] [stderr] Downloaded itertools v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8f7127780e0659883998cd8e8c8c24d8d0c7039c4b5e360b860f4c4121e3a61c [INFO] running `Command { std: "docker" "start" "-a" "8f7127780e0659883998cd8e8c8c24d8d0c7039c4b5e360b860f4c4121e3a61c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f7127780e0659883998cd8e8c8c24d8d0c7039c4b5e360b860f4c4121e3a61c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f7127780e0659883998cd8e8c8c24d8d0c7039c4b5e360b860f4c4121e3a61c", kill_on_drop: false }` [INFO] [stdout] 8f7127780e0659883998cd8e8c8c24d8d0c7039c4b5e360b860f4c4121e3a61c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 08eb8279e62ca82828c663277c6d9bd636fbaadf458c5efedb6bbb837c90ac0c [INFO] running `Command { std: "docker" "start" "-a" "08eb8279e62ca82828c663277c6d9bd636fbaadf458c5efedb6bbb837c90ac0c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Checking futures-io v0.3.14 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Checking fastrand v1.4.1 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rayon-core v1.8.1 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Checking futures-task v0.3.14 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking futures-channel v0.3.14 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Compiling rayon v1.4.1 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-executor v1.4.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking polling v2.0.3 [INFO] [stderr] Checking socket2 v0.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking async-io v1.4.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking async-global-executor v2.0.2 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking serde_json v1.0.58 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Compiling futures-macro v0.3.14 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling async-trait v0.1.50 [INFO] [stderr] Checking async-std v1.9.0 [INFO] [stderr] Checking futures-util v0.3.14 [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stderr] Checking futures-executor v0.3.14 [INFO] [stderr] Checking futures v0.3.14 [INFO] [stderr] Checking playground v0.1.0 (/opt/rustwide/workdir/playground) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.76s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "08eb8279e62ca82828c663277c6d9bd636fbaadf458c5efedb6bbb837c90ac0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08eb8279e62ca82828c663277c6d9bd636fbaadf458c5efedb6bbb837c90ac0c", kill_on_drop: false }` [INFO] [stdout] 08eb8279e62ca82828c663277c6d9bd636fbaadf458c5efedb6bbb837c90ac0c [INFO] checking shfty-rust/playground against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshfty-rust%2Fplayground" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shfty-rust/playground 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/shfty-rust/playground [INFO] finished tweaking git repo https://github.com/shfty-rust/playground [INFO] tweaked toml for git repo https://github.com/shfty-rust/playground written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/shfty-rust/playground 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 70f1399e992d0be2a71d94ddd058b1f41aefa68a38feb63c40e3cb811e3b6fa1 [INFO] running `Command { std: "docker" "start" "-a" "70f1399e992d0be2a71d94ddd058b1f41aefa68a38feb63c40e3cb811e3b6fa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70f1399e992d0be2a71d94ddd058b1f41aefa68a38feb63c40e3cb811e3b6fa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70f1399e992d0be2a71d94ddd058b1f41aefa68a38feb63c40e3cb811e3b6fa1", kill_on_drop: false }` [INFO] [stdout] 70f1399e992d0be2a71d94ddd058b1f41aefa68a38feb63c40e3cb811e3b6fa1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8fadf7513e2a13c92efa4c756a8279f0505ca502bedab7e783b039b5e2fcce25 [INFO] running `Command { std: "docker" "start" "-a" "8fadf7513e2a13c92efa4c756a8279f0505ca502bedab7e783b039b5e2fcce25", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Checking futures-io v0.3.14 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking fastrand v1.4.1 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Compiling rayon-core v1.8.1 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking futures-channel v0.3.14 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking futures-task v0.3.14 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Compiling rayon v1.4.1 [INFO] [stderr] Checking async-lock v2.4.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking kv-log-macro v1.0.7 [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] Checking itertools v0.10.0 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.4/src/sync/parker.rs:364:25 [INFO] [stdout] | [INFO] [stdout] 364 | / match self.state.swap(EMPTY, SeqCst) { [INFO] [stdout] 365 | | NOTIFIED | PARKED => return, [INFO] [stdout] 366 | | n => panic!("inconsistent park_timeout state: {}", n), [INFO] [stdout] 367 | | }; [INFO] [stdout] | |_________________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking polling v2.0.3 [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] Checking socket2 v0.4.0 [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] [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 `crossbeam-utils` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "8fadf7513e2a13c92efa4c756a8279f0505ca502bedab7e783b039b5e2fcce25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fadf7513e2a13c92efa4c756a8279f0505ca502bedab7e783b039b5e2fcce25", kill_on_drop: false }` [INFO] [stdout] 8fadf7513e2a13c92efa4c756a8279f0505ca502bedab7e783b039b5e2fcce25