[INFO] cloning repository https://github.com/EmmaLa/tokio-chat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EmmaLa/tokio-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmmaLa%2Ftokio-chat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmmaLa%2Ftokio-chat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bf17a85c54d53a88e8ceb4789897defe10667c70 [INFO] checking EmmaLa/tokio-chat against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmmaLa%2Ftokio-chat" "/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/EmmaLa/tokio-chat 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/EmmaLa/tokio-chat [INFO] finished tweaking git repo https://github.com/EmmaLa/tokio-chat [INFO] tweaked toml for git repo https://github.com/EmmaLa/tokio-chat written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/EmmaLa/tokio-chat 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 tokio-io v0.1.5 [INFO] [stderr] Downloaded net2 v0.2.31 [INFO] [stderr] Downloaded mio v0.6.13 [INFO] [stderr] Downloaded tokio v0.1.1 [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] 1f1c9dc9053b0df3a69cf56097d0b1b2280aa846066e5a289c0309582b4883ff [INFO] running `Command { std: "docker" "start" "-a" "1f1c9dc9053b0df3a69cf56097d0b1b2280aa846066e5a289c0309582b4883ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f1c9dc9053b0df3a69cf56097d0b1b2280aa846066e5a289c0309582b4883ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f1c9dc9053b0df3a69cf56097d0b1b2280aa846066e5a289c0309582b4883ff", kill_on_drop: false }` [INFO] [stdout] 1f1c9dc9053b0df3a69cf56097d0b1b2280aa846066e5a289c0309582b4883ff [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] b247e29d27e01bd90d331b8ea59e3e65bec44772f92e04896a6000e93804a204 [INFO] running `Command { std: "docker" "start" "-a" "b247e29d27e01bd90d331b8ea59e3e65bec44772f92e04896a6000e93804a204", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking byteorder v1.2.1 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Checking futures v0.1.18 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Checking mio v0.6.13 [INFO] [stderr] Checking tokio-io v0.1.5 [INFO] [stderr] Checking tokio v0.1.1 [INFO] [stderr] Checking tokio-chat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `AsyncWrite` [INFO] [stdout] --> src/main.rs:9:28 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_io::{ AsyncRead, AsyncWrite}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | use std::io::{Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Mutex` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use std::sync::Mutex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `AsyncWrite` [INFO] [stdout] --> src/main.rs:9:28 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_io::{ AsyncRead, AsyncWrite}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | use std::io::{Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Mutex` [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | use std::sync::Mutex; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut chuck_data = chunk_data.for_each(move |data| { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut chuck_data = chunk_data.for_each(move |data| { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Rx` is never used [INFO] [stdout] --> src/main.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 28 | type Rx = mpsc::UnboundedReceiver; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `state` is never read [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 34 | struct ChunkData{ [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 37 | state: Rc> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Rx` is never used [INFO] [stdout] --> src/main.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 28 | type Rx = mpsc::UnboundedReceiver; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `state` is never read [INFO] [stdout] --> src/main.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 34 | struct ChunkData{ [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 37 | state: Rc> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.95s [INFO] running `Command { std: "docker" "inspect" "b247e29d27e01bd90d331b8ea59e3e65bec44772f92e04896a6000e93804a204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b247e29d27e01bd90d331b8ea59e3e65bec44772f92e04896a6000e93804a204", kill_on_drop: false }` [INFO] [stdout] b247e29d27e01bd90d331b8ea59e3e65bec44772f92e04896a6000e93804a204 [INFO] checking EmmaLa/tokio-chat against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmmaLa%2Ftokio-chat" "/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/EmmaLa/tokio-chat 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/EmmaLa/tokio-chat [INFO] finished tweaking git repo https://github.com/EmmaLa/tokio-chat [INFO] tweaked toml for git repo https://github.com/EmmaLa/tokio-chat written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/EmmaLa/tokio-chat 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] 23d731b929372119535b2d5cdbb237c95b58aa11a3265e01af260b045dea3c3b [INFO] running `Command { std: "docker" "start" "-a" "23d731b929372119535b2d5cdbb237c95b58aa11a3265e01af260b045dea3c3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23d731b929372119535b2d5cdbb237c95b58aa11a3265e01af260b045dea3c3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23d731b929372119535b2d5cdbb237c95b58aa11a3265e01af260b045dea3c3b", kill_on_drop: false }` [INFO] [stdout] 23d731b929372119535b2d5cdbb237c95b58aa11a3265e01af260b045dea3c3b [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] e87db1cd4a575bcb09c6de55ef347afaf337d4e6f112f54d1a0a39bf66b89da9 [INFO] running `Command { std: "docker" "start" "-a" "e87db1cd4a575bcb09c6de55ef347afaf337d4e6f112f54d1a0a39bf66b89da9", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Checking byteorder v1.2.1 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Checking futures v0.1.18 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Checking mio v0.6.13 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-0.4.6/src/bytes.rs:2116:17 [INFO] [stdout] | [INFO] [stdout] 2116 | panic!(); // TODO: abort [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `bytes` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mio-0.6.13/src/poll.rs:2053:13 [INFO] [stdout] | [INFO] [stdout] 2053 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [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 E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mio` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e87db1cd4a575bcb09c6de55ef347afaf337d4e6f112f54d1a0a39bf66b89da9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e87db1cd4a575bcb09c6de55ef347afaf337d4e6f112f54d1a0a39bf66b89da9", kill_on_drop: false }` [INFO] [stdout] e87db1cd4a575bcb09c6de55ef347afaf337d4e6f112f54d1a0a39bf66b89da9