[INFO] fetching crate synco 0.0.0... [INFO] checking synco-0.0.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] extracting crate synco 0.0.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate synco 0.0.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate synco 0.0.0 [INFO] finished tweaking crates.io crate synco 0.0.0 [INFO] tweaked toml for crates.io crate synco 0.0.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate synco 0.0.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a4558171c3e670d507861177f62a1725434d7dd96440e0f6c4b79b58d9e612da [INFO] running `Command { std: "docker" "start" "-a" "a4558171c3e670d507861177f62a1725434d7dd96440e0f6c4b79b58d9e612da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4558171c3e670d507861177f62a1725434d7dd96440e0f6c4b79b58d9e612da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4558171c3e670d507861177f62a1725434d7dd96440e0f6c4b79b58d9e612da", kill_on_drop: false }` [INFO] [stdout] a4558171c3e670d507861177f62a1725434d7dd96440e0f6c4b79b58d9e612da [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0db9f245fec7066bc1de1d1a653dd1ceaf73dcc8165585b59b4523520ca242c4 [INFO] running `Command { std: "docker" "start" "-a" "0db9f245fec7066bc1de1d1a653dd1ceaf73dcc8165585b59b4523520ca242c4", 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] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking bitflags v1.3.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking shrev v1.1.1 [INFO] [stderr] Checking tuple_utils v0.3.0 [INFO] [stderr] Checking anymap v0.12.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking crossbeam-utils v0.8.5 [INFO] [stderr] Checking serde v1.0.127 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking num-traits v0.2.14 [INFO] [stderr] Checking synco v0.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | min_type_alias_impl_trait, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in favor of full type_alias_impl_trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable [INFO] [stdout] --> src/entity.rs:107:27 [INFO] [stdout] | [INFO] [stdout] 107 | pub type EntityIter<'a> = impl Iterator + 'a; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable [INFO] [stdout] --> src/system.rs:93:28 [INFO] [stdout] | [INFO] [stdout] 93 | type System = FnSystem O, Args, O>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/entity.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Ref` [INFO] [stdout] --> src/query.rs:4:24 [INFO] [stdout] | [INFO] [stdout] 4 | cell::{UnsafeCell, Ref}, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/query.rs:156:20 [INFO] [stdout] | [INFO] [stdout] 156 | };);* [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/query.rs:156:20 [INFO] [stdout] | [INFO] [stdout] 156 | };);* [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking crossbeam-epoch v0.9.5 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `synco` due to 4 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "0db9f245fec7066bc1de1d1a653dd1ceaf73dcc8165585b59b4523520ca242c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0db9f245fec7066bc1de1d1a653dd1ceaf73dcc8165585b59b4523520ca242c4", kill_on_drop: false }` [INFO] [stdout] 0db9f245fec7066bc1de1d1a653dd1ceaf73dcc8165585b59b4523520ca242c4