[INFO] fetching crate simple-message-channels 0.2.0... [INFO] building simple-message-channels-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate simple-message-channels 0.2.0 [INFO] finished tweaking crates.io crate simple-message-channels 0.2.0 [INFO] tweaked toml for crates.io crate simple-message-channels 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate simple-message-channels 0.2.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 38f97b65293b3532f774583f565e8e099a3f60ceadaede32f43e8a89e9505057 [INFO] running `Command { std: "docker" "start" "-a" "38f97b65293b3532f774583f565e8e099a3f60ceadaede32f43e8a89e9505057", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "38f97b65293b3532f774583f565e8e099a3f60ceadaede32f43e8a89e9505057", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38f97b65293b3532f774583f565e8e099a3f60ceadaede32f43e8a89e9505057", kill_on_drop: false }` [INFO] [stdout] 38f97b65293b3532f774583f565e8e099a3f60ceadaede32f43e8a89e9505057 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3397e2894b61954fa0a85675267565730b44f8992720e57e529bf50672b5825 [INFO] running `Command { std: "docker" "start" "-a" "e3397e2894b61954fa0a85675267565730b44f8992720e57e529bf50672b5825", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling futures-core v0.3.1 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-sink v0.3.1 [INFO] [stderr] Compiling futures-io v0.3.1 [INFO] [stderr] Compiling lock_api v0.3.2 [INFO] [stderr] Compiling futures-channel v0.3.1 [INFO] [stderr] Compiling futures-task v0.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling async-macros v2.0.0 [INFO] [stderr] Compiling once_cell v1.2.0 [INFO] [stderr] Compiling futures-timer v2.0.2 [INFO] [stderr] Compiling pin-project-lite v0.1.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling varinteger v1.0.6 [INFO] [stderr] Compiling kv-log-macro v1.0.4 [INFO] [stderr] Compiling async-task v1.0.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.11.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling crossbeam-channel v0.4.0 [INFO] [stderr] Compiling mio v0.6.20 [INFO] [stderr] Compiling crossbeam-deque v0.7.2 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling broadcaster v0.2.6 [INFO] [stderr] Compiling async-std v1.1.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Compiling futures-util v0.3.1 [INFO] [stderr] Compiling futures-executor v0.3.1 [INFO] [stderr] Compiling futures v0.3.1 [INFO] [stderr] Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/message.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 80 | let _ = &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.08s [INFO] running `Command { std: "docker" "inspect" "e3397e2894b61954fa0a85675267565730b44f8992720e57e529bf50672b5825", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3397e2894b61954fa0a85675267565730b44f8992720e57e529bf50672b5825", kill_on_drop: false }` [INFO] [stdout] e3397e2894b61954fa0a85675267565730b44f8992720e57e529bf50672b5825 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8474f4e62419188f35999eff7426e5e4b0365e9bf5e40937eb9bcb14f9de6dc0 [INFO] running `Command { std: "docker" "start" "-a" "8474f4e62419188f35999eff7426e5e4b0365e9bf5e40937eb9bcb14f9de6dc0", kill_on_drop: false }` [INFO] [stderr] Compiling simple-message-channels v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/message.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 80 | let _ = &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/message.rs:80:5 [INFO] [stdout] | [INFO] [stdout] 80 | &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 80 | let _ = &mut buf[end..].copy_from_slice(&msg.message); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> examples/tcp.rs:46:25 [INFO] [stdout] | [INFO] [stdout] 46 | _ => panic!(usage()), [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)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `()` [INFO] [stdout] | [INFO] [stdout] 46 | _ => panic!("{:?}", usage()), [INFO] [stdout] | +++++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 46 - _ => panic!(usage()), [INFO] [stdout] 46 + _ => std::panic::panic_any(usage()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `Command { std: "docker" "inspect" "8474f4e62419188f35999eff7426e5e4b0365e9bf5e40937eb9bcb14f9de6dc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8474f4e62419188f35999eff7426e5e4b0365e9bf5e40937eb9bcb14f9de6dc0", kill_on_drop: false }` [INFO] [stdout] 8474f4e62419188f35999eff7426e5e4b0365e9bf5e40937eb9bcb14f9de6dc0