[INFO] fetching crate remux 0.9.0... [INFO] checking remux-0.9.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate remux 0.9.0 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate remux 0.9.0 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 crates.io crate remux 0.9.0 [INFO] finished tweaking crates.io crate remux 0.9.0 [INFO] tweaked toml for crates.io crate remux 0.9.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 129 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding env_logger v0.8.4 (latest: v0.11.3) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding parking_lot v0.11.2 (latest: v0.12.1) [INFO] [stderr] Adding parking_lot_core v0.8.6 (latest: v0.9.9) [INFO] [stderr] Adding redox_syscall v0.2.16 (latest: v0.5.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding tokio-util v0.6.10 (latest: v0.7.10) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding windows-sys v0.48.0 (latest: v0.52.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4) [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 nohash v0.2.0 [INFO] [stderr] Downloaded constrained-connection v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 413ef0220d9ecbb2f4bb16e2763b8f3d281a702df3ca965711c664f18743b583 [INFO] running `Command { std: "docker" "start" "-a" "413ef0220d9ecbb2f4bb16e2763b8f3d281a702df3ca965711c664f18743b583", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "413ef0220d9ecbb2f4bb16e2763b8f3d281a702df3ca965711c664f18743b583", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "413ef0220d9ecbb2f4bb16e2763b8f3d281a702df3ca965711c664f18743b583", kill_on_drop: false }` [INFO] [stdout] 413ef0220d9ecbb2f4bb16e2763b8f3d281a702df3ca965711c664f18743b583 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 417239620a8e0277390997e6d1a8fce9ce01e8e8bd2bdc8daa41fdebb44a03ea [INFO] running `Command { std: "docker" "start" "-a" "417239620a8e0277390997e6d1a8fce9ce01e8e8bd2bdc8daa41fdebb44a03ea", kill_on_drop: false }` [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking nohash v0.2.0 [INFO] [stderr] Checking futures-timer v3.0.3 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking quickcheck v1.0.3 [INFO] [stderr] Checking tokio-util v0.6.10 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking constrained-connection v0.1.0 [INFO] [stderr] Checking remux v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `future` is imported redundantly [INFO] [stdout] --> src/connection.rs:104:14 [INFO] [stdout] | [INFO] [stdout] 104 | future::{self, Either}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 105 | prelude::*, [INFO] [stdout] | ---------- the item `future` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `future` is imported redundantly [INFO] [stdout] --> src/tests.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | use futures::{future, prelude::*}; [INFO] [stdout] | ^^^^^^ ---------- the item `future` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `future` is imported redundantly [INFO] [stdout] --> src/connection.rs:104:14 [INFO] [stdout] | [INFO] [stdout] 104 | future::{self, Either}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 105 | prelude::*, [INFO] [stdout] | ---------- the item `future` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/frame/io.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut this = &mut *self; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `future` is imported redundantly [INFO] [stdout] --> benches/concurrent.rs:13:30 [INFO] [stdout] | [INFO] [stdout] 13 | use futures::{channel::mpsc, future, prelude::*, io::AsyncReadExt}; [INFO] [stdout] | ^^^^^^ ---------- the item `future` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/frame/io.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut this = &mut *self; [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/tests.rs:270:63 [INFO] [stdout] | [INFO] [stdout] 270 | writer.write_all(msg.as_ref()).map_err(|e| panic!(e)), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 270 | writer.write_all(msg.as_ref()).map_err(|e| panic!("{}", e)), [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 270 | writer.write_all(msg.as_ref()).map_err(|e| std::panic::panic_any(e)), [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/tests.rs:271:62 [INFO] [stdout] | [INFO] [stdout] 271 | reader.read_exact(&mut b[..]).map_err(|e| panic!(e)), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 271 | reader.read_exact(&mut b[..]).map_err(|e| panic!("{}", e)), [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 271 | reader.read_exact(&mut b[..]).map_err(|e| std::panic::panic_any(e)), [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.14s [INFO] running `Command { std: "docker" "inspect" "417239620a8e0277390997e6d1a8fce9ce01e8e8bd2bdc8daa41fdebb44a03ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "417239620a8e0277390997e6d1a8fce9ce01e8e8bd2bdc8daa41fdebb44a03ea", kill_on_drop: false }` [INFO] [stdout] 417239620a8e0277390997e6d1a8fce9ce01e8e8bd2bdc8daa41fdebb44a03ea