[INFO] cloning repository https://github.com/mmacedoeu/toyrpc.rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmacedoeu/toyrpc.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmacedoeu%2Ftoyrpc.rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmacedoeu%2Ftoyrpc.rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 17dcf9a2552b743750c32579c2d43b27327d0c30 [INFO] checking mmacedoeu/toyrpc.rs against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmacedoeu%2Ftoyrpc.rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mmacedoeu/toyrpc.rs on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mmacedoeu/toyrpc.rs [INFO] finished tweaking git repo https://github.com/mmacedoeu/toyrpc.rs [INFO] tweaked toml for git repo https://github.com/mmacedoeu/toyrpc.rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mmacedoeu/toyrpc.rs 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/paritytech/jsonrpc.git` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Updating git repository `https://github.com/ethcore/mio` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 5 packages [INFO] [stderr] Adding jsonrpc-core v8.0.2 (https://github.com/paritytech/jsonrpc.git?branch=master#029a0696) [INFO] [stderr] Adding jsonrpc-http-server v8.0.1 (https://github.com/paritytech/jsonrpc.git?branch=master#029a0696) [INFO] [stderr] Adding jsonrpc-macros v8.0.1 (https://github.com/paritytech/jsonrpc.git?branch=master#029a0696) [INFO] [stderr] Adding jsonrpc-pubsub v8.0.1 (https://github.com/paritytech/jsonrpc.git?branch=master#029a0696) [INFO] [stderr] Adding jsonrpc-server-utils v8.0.1 (https://github.com/paritytech/jsonrpc.git?branch=master#029a0696) [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded vergen v0.1.1 [INFO] [stderr] Downloaded clippy v0.0.103 [INFO] [stderr] Downloaded clippy_lints v0.0.103 [INFO] [stderr] Downloaded ctrlc v3.1.0 [INFO] [stderr] Downloaded daemonize v0.2.3 [INFO] [stderr] Downloaded globset v0.4.0 [INFO] [stderr] Downloaded rulid v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 837b258d555c4e640f06de7675968258ae4364c4d0246828a19865fd66318839 [INFO] running `Command { std: "docker" "start" "-a" "837b258d555c4e640f06de7675968258ae4364c4d0246828a19865fd66318839", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "837b258d555c4e640f06de7675968258ae4364c4d0246828a19865fd66318839", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "837b258d555c4e640f06de7675968258ae4364c4d0246828a19865fd66318839", kill_on_drop: false }` [INFO] [stdout] 837b258d555c4e640f06de7675968258ae4364c4d0246828a19865fd66318839 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d92fa45f437c1d161f10a3dcf268a09b3de1dc21c0cccbbcc76c9b65efe772c [INFO] running `Command { std: "docker" "start" "-a" "1d92fa45f437c1d161f10a3dcf268a09b3de1dc21c0cccbbcc76c9b65efe772c", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking futures v0.1.21 [INFO] [stderr] Checking byteorder v1.2.3 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.4 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling num-integer v0.1.38 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Checking smallvec v0.6.1 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking serde v1.0.55 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Compiling cc v1.0.15 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking stable_deref_trait v1.0.0 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.32 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] 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[stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking try-lock v0.1.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking owning_ref v0.2.4 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Compiling bitflags v0.7.0 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Compiling bigint v1.0.5 [INFO] [stderr] Checking parking_lot v0.3.8 [INFO] [stderr] Checking parking_lot v0.5.5 [INFO] [stderr] Checking base64 v0.9.1 [INFO] [stderr] Checking tokio-executor v0.1.2 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Checking want v0.0.4 [INFO] [stderr] Checking tokio-threadpool v0.1.3 [INFO] [stderr] Checking tokio-timer v0.2.3 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking mime v0.3.7 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Compiling vergen v0.1.1 [INFO] [stderr] Checking odds v0.2.26 [INFO] [stderr] Checking httparse v1.2.4 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking nix v0.9.0 [INFO] [stderr] Checking chrono v0.4.2 [INFO] [stderr] Checking isatty v0.1.7 [INFO] [stderr] Checking atty v0.2.10 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling toyrpc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking bitflags v1.0.3 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking xdg v2.1.0 [INFO] [stderr] Checking arrayvec v0.3.25 [INFO] [stderr] Checking base32 v0.3.1 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Checking tokio-fs v0.1.0 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking crossbeam v0.2.12 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking slab v0.2.0 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tokio v0.1.6 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Checking app_dirs v1.2.1 [INFO] [stderr] Checking number_prefix v0.2.8 [INFO] [stderr] Checking fdlimit v0.1.1 [INFO] [stderr] Checking daemonize v0.2.3 [INFO] [stderr] Checking order-stat v0.1.3 [INFO] [stderr] Checking ansi_term v0.7.5 [INFO] [stderr] Checking target_info v0.1.0 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking rulid v0.3.1 [INFO] [stderr] Checking mio v0.6.1 (https://github.com/ethcore/mio#15a57703) [INFO] [stderr] Compiling serde_derive v1.0.55 [INFO] [stderr] Checking env_logger v0.3.5 [INFO] [stderr] Checking ethcore-logger v1.7.0 (/opt/rustwide/workdir/crates/logger) [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> crates/logger/src/lib.rs:60:1 [INFO] [stdout] | [INFO] [stdout] 60 | / lazy_static! { [INFO] [stdout] 61 | | static ref ROTATING_LOGGER : Mutex> = Mutex::new(Default::default()); [INFO] [stdout] 62 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> crates/logger/src/lib.rs:146:2 [INFO] [stdout] | [INFO] [stdout] 146 | / lazy_static! { [INFO] [stdout] 147 | | static ref RE: Regex = Regex::new("\x1b\\[[^m]+m").unwrap(); [INFO] [stdout] 148 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> crates/logger/src/rotating.rs:26:1 [INFO] [stdout] | [INFO] [stdout] 26 | / lazy_static! { [INFO] [stdout] 27 | | static ref LOG_DUMMY: () = { [INFO] [stdout] 28 | | let mut builder = LogBuilder::new(); [INFO] [stdout] 29 | | builder.filter(None, LogLevelFilter::Info); [INFO] [stdout] ... | [INFO] [stdout] 38 | | }; [INFO] [stdout] 39 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking parity-reactor v0.1.0 (/opt/rustwide/workdir/crates/util/reactor) [INFO] [stderr] Checking globset v0.4.0 [INFO] [stderr] Checking ethcore-io v1.7.0 (/opt/rustwide/workdir/crates/util/io) [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> crates/util/io/src/panics.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:50:16 [INFO] [stdout] | [INFO] [stdout] 50 | handler: Arc+Send>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 50 | handler: Arc+Send>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:185:32 [INFO] [stdout] | [INFO] [stdout] 185 | handlers: Arc>, HandlerId>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 185 | handlers: Arc>, HandlerId>>>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:334:40 [INFO] [stdout] | [INFO] [stdout] 334 | SharedCollection(Weak>, HandlerId>>>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 334 | SharedCollection(Weak>, HandlerId>>>), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:335:14 [INFO] [stdout] | [INFO] [stdout] 335 | Single(Weak>), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 335 | Single(Weak>), [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:423:32 [INFO] [stdout] | [INFO] [stdout] 423 | handlers: Arc>, HandlerId>>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 423 | handlers: Arc>, HandlerId>>>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/worker.rs:49:19 [INFO] [stdout] | [INFO] [stdout] 49 | pub handler: Arc>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 | pub handler: Arc>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/panics.rs:58:27 [INFO] [stdout] | [INFO] [stdout] 58 | listeners: Mutex>> [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 58 | listeners: Mutex>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:196:33 [INFO] [stdout] | [INFO] [stdout] 196 | handlers: Arc>, HandlerId>>> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 196 | handlers: Arc>, HandlerId>>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:403:34 [INFO] [stdout] | [INFO] [stdout] 403 | pub fn to_handler(handler: Weak>) -> IoChannel { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 403 | pub fn to_handler(handler: Weak>) -> IoChannel { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:409:77 [INFO] [stdout] | [INFO] [stdout] 409 | fn new(channel: Sender>, handlers: Weak>, HandlerId>>>) -> IoChannel { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 409 | fn new(channel: Sender>, handlers: Weak>, HandlerId>>>) -> IoChannel { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> crates/util/io/src/service.rs:472:46 [INFO] [stdout] | [INFO] [stdout] 472 | pub fn register_handler(&self, handler: Arc+Send>) -> Result<(), IoError> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 472 | pub fn register_handler(&self, handler: Arc+Send>) -> Result<(), IoError> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> crates/util/io/src/panics.rs:93:7 [INFO] [stdout] | [INFO] [stdout] 93 | for mut listener in &mut **listeners { [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] error: non-binding let on a synchronization lock [INFO] [stdout] --> crates/util/io/src/worker.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | let _ = wait.wait(lock); [INFO] [stdout] | ^ this lock is not assigned to a binding and is immediately dropped [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(let_underscore_lock)]` on by default [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 100 | let _unused = wait.wait(lock); [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 100 | drop(wait.wait(lock)); [INFO] [stdout] | ~~~~~ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: non-binding let on a synchronization lock [INFO] [stdout] --> crates/util/io/src/worker.rs:136:7 [INFO] [stdout] | [INFO] [stdout] 136 | let _ = self.wait_mutex.lock().expect("Poisoned work_loop mutex"); [INFO] [stdout] | ^ this lock is not assigned to a binding and is immediately dropped [INFO] [stdout] | [INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 136 | let _unused = self.wait_mutex.lock().expect("Poisoned work_loop mutex"); [INFO] [stdout] | ~~~~~~~ [INFO] [stdout] help: consider immediately dropping the value [INFO] [stdout] | [INFO] [stdout] 136 | drop(self.wait_mutex.lock().expect("Poisoned work_loop mutex")); [INFO] [stdout] | ~~~~~ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ethcore-io` (lib) due to 3 previous errors; 13 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "1d92fa45f437c1d161f10a3dcf268a09b3de1dc21c0cccbbcc76c9b65efe772c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d92fa45f437c1d161f10a3dcf268a09b3de1dc21c0cccbbcc76c9b65efe772c", kill_on_drop: false }` [INFO] [stdout] 1d92fa45f437c1d161f10a3dcf268a09b3de1dc21c0cccbbcc76c9b65efe772c