[INFO] fetching crate turbulence 0.3.0... [INFO] checking turbulence-0.3.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322 [INFO] extracting crate turbulence 0.3.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate turbulence 0.3.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate turbulence 0.3.0 [INFO] finished tweaking crates.io crate turbulence 0.3.0 [INFO] tweaked toml for crates.io crate turbulence 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d50a0fe3f110855c81332cac33039811440be1f2eba27eb9f688b492e8638b17 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d50a0fe3f110855c81332cac33039811440be1f2eba27eb9f688b492e8638b17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d50a0fe3f110855c81332cac33039811440be1f2eba27eb9f688b492e8638b17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d50a0fe3f110855c81332cac33039811440be1f2eba27eb9f688b492e8638b17", kill_on_drop: false }` [INFO] [stdout] d50a0fe3f110855c81332cac33039811440be1f2eba27eb9f688b492e8638b17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ff92e24a651263cd31de3a553104553943af31e8549fc99bf948143be71ca1f4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ff92e24a651263cd31de3a553104553943af31e8549fc99bf948143be71ca1f4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling libc v0.2.87 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Checking futures-core v0.3.13 [INFO] [stderr] Checking futures-sink v0.3.13 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking pin-project-lite v0.2.5 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-task v0.3.13 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Compiling snap v1.0.4 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Compiling serde_derive v1.0.123 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking futures-executor v0.3.13 [INFO] [stderr] Checking serde v1.0.123 [INFO] [stderr] Checking futures v0.3.13 [INFO] [stderr] Checking bincode v1.3.2 [INFO] [stderr] Checking turbulence v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:477:29 [INFO] [stdout] | [INFO] [stdout] 477 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:523:29 [INFO] [stdout] | [INFO] [stdout] 523 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:569:29 [INFO] [stdout] | [INFO] [stdout] 569 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:477:29 [INFO] [stdout] | [INFO] [stdout] 477 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:523:29 [INFO] [stdout] | [INFO] [stdout] 523 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `flush` [INFO] [stdout] --> src/message_channels.rs:569:29 [INFO] [stdout] | [INFO] [stdout] 569 | ... flush = flush_receiver.wait().fuse() => Next::Flush, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_flush` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/message_channels.rs:266:61 [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(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/message_channels.rs:352:61 [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(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/message_channels.rs:266:61 [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 266 | TryAsyncMessageError::Unregistered(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/message_channels.rs:352:61 [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!(e), [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => panic!("{}", e), [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 352 | TryAsyncMessageError::Unregistered(e) => std::panic::panic_any(e), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 52.81s [INFO] running `Command { std: "docker" "inspect" "ff92e24a651263cd31de3a553104553943af31e8549fc99bf948143be71ca1f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff92e24a651263cd31de3a553104553943af31e8549fc99bf948143be71ca1f4", kill_on_drop: false }` [INFO] [stdout] ff92e24a651263cd31de3a553104553943af31e8549fc99bf948143be71ca1f4