[INFO] fetching crate simple-message-channels 0.2.0... [INFO] checking simple-message-channels-0.2.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] extracting crate simple-message-channels 0.2.0 into /workspace/builds/worker-48/source [INFO] validating manifest of crates.io crate simple-message-channels 0.2.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-48/source/Cargo.toml [INFO] crate crates.io crate simple-message-channels 0.2.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a49a1d84a8b13c67f7fd96fef36f60fbdb61336f90da3e5ef720789da3f82694 [INFO] running `Command { std: "docker" "start" "-a" "a49a1d84a8b13c67f7fd96fef36f60fbdb61336f90da3e5ef720789da3f82694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a49a1d84a8b13c67f7fd96fef36f60fbdb61336f90da3e5ef720789da3f82694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a49a1d84a8b13c67f7fd96fef36f60fbdb61336f90da3e5ef720789da3f82694", kill_on_drop: false }` [INFO] [stdout] a49a1d84a8b13c67f7fd96fef36f60fbdb61336f90da3e5ef720789da3f82694 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6e4b1ac8ff63424973b7061855d7e76f34e634e99f934ab86aa656825a1145a2 [INFO] running `Command { std: "docker" "start" "-a" "6e4b1ac8ff63424973b7061855d7e76f34e634e99f934ab86aa656825a1145a2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Checking futures-core v0.3.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Checking futures-io v0.3.1 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-sink v0.3.1 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-task v0.3.1 [INFO] [stderr] Checking futures-timer v2.0.2 [INFO] [stderr] Checking pin-project-lite v0.1.1 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] [stderr] Checking varinteger v1.0.6 [INFO] [stderr] Checking lock_api v0.3.2 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking futures-channel v0.3.1 [INFO] [stderr] Checking async-macros v2.0.0 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Checking mio v0.6.20 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking broadcaster v0.2.6 [INFO] [stderr] Checking async-std v1.1.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Checking futures-util v0.3.1 [INFO] [stderr] Checking futures-executor v0.3.1 [INFO] [stderr] Checking futures v0.3.1 [INFO] [stderr] Checking 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)]` 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: 1 warning emitted [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)]` 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: 1 warning emitted [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: `#[warn(non_fmt_panics)]` on by default [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] 46 | _ => panic!("{}", usage()), [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 46 | _ => std::panic::panic_any(usage()), [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 22.88s [INFO] running `Command { std: "docker" "inspect" "6e4b1ac8ff63424973b7061855d7e76f34e634e99f934ab86aa656825a1145a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e4b1ac8ff63424973b7061855d7e76f34e634e99f934ab86aa656825a1145a2", kill_on_drop: false }` [INFO] [stdout] 6e4b1ac8ff63424973b7061855d7e76f34e634e99f934ab86aa656825a1145a2