[INFO] fetching crate zia 0.5.0... [INFO] checking zia-0.5.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate zia 0.5.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate zia 0.5.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate zia 0.5.0 [INFO] finished tweaking crates.io crate zia 0.5.0 [INFO] tweaked toml for crates.io crate zia 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 137 packages [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding proptest v0.9.6 (latest: v1.4.0) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding regex-syntax v0.6.29 (latest: v0.8.3) [INFO] [stderr] Adding rusty-fork v0.2.2 (latest: v0.3.0) [INFO] [stderr] Adding snafu v0.5.0 (latest: v0.8.2) [INFO] [stderr] Adding snafu-derive v0.5.0 (latest: v0.8.2) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded test_zia v0.5.0 [INFO] [stderr] Downloaded slog-term v2.9.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 192f54adfedc6cce5a9710a03fd6044b25c753583489cf033fe3d179facce600 [INFO] running `Command { std: "docker" "start" "-a" "192f54adfedc6cce5a9710a03fd6044b25c753583489cf033fe3d179facce600", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "192f54adfedc6cce5a9710a03fd6044b25c753583489cf033fe3d179facce600", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "192f54adfedc6cce5a9710a03fd6044b25c753583489cf033fe3d179facce600", kill_on_drop: false }` [INFO] [stdout] 192f54adfedc6cce5a9710a03fd6044b25c753583489cf033fe3d179facce600 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae6366dc1bd5796785c3ec7b0d366e5eb393f3a688e52728c6f95c9ec40118a6 [INFO] running `Command { std: "docker" "start" "-a" "ae6366dc1bd5796785c3ec7b0d366e5eb393f3a688e52728c6f95c9ec40118a6", kill_on_drop: false }` [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling num-conv v0.1.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling time-core v0.1.2 [INFO] [stderr] Checking powerfmt v0.2.0 [INFO] [stderr] Checking gimli v0.28.1 [INFO] [stderr] Compiling slog v2.7.0 [INFO] [stderr] Checking miniz_oxide v0.7.2 [INFO] [stderr] Compiling time-macros v0.2.17 [INFO] [stderr] Checking deranged v0.3.11 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking rustc-demangle v0.1.23 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking is-terminal v0.4.12 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking time v0.3.34 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Checking slog-term v2.9.1 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Compiling snafu-derive v0.5.0 [INFO] [stderr] Checking test_zia v0.5.0 [INFO] [stderr] Checking snafu v0.5.0 [INFO] [stderr] Checking zia v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused attribute `macro_export` [INFO] [stdout] --> src/lib.rs:163:1 [INFO] [stdout] | [INFO] [stdout] 163 | #[macro_export] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the built-in attribute `macro_export` will be ignored, since it's applied to the macro invocation `lazy_static` [INFO] [stdout] --> src/lib.rs:164:1 [INFO] [stdout] | [INFO] [stdout] 164 | lazy_static! { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/context.rs:29:11 [INFO] [stdout] | [INFO] [stdout] 29 | use std::{default::Default, iter::from_fn, mem::swap, rc::Rc}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/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: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:21:25 [INFO] [stdout] | [INFO] [stdout] 21 | fn apply(&mut self, Self::Delta); [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Delta` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | fn diff(&self, Self) -> Self::Delta; [INFO] [stdout] | ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:53:27 [INFO] [stdout] | [INFO] [stdout] 53 | fn combine(&mut self, Self); [INFO] [stdout] | ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused attribute `macro_export` [INFO] [stdout] --> src/lib.rs:163:1 [INFO] [stdout] | [INFO] [stdout] 163 | #[macro_export] [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the built-in attribute `macro_export` will be ignored, since it's applied to the macro invocation `lazy_static` [INFO] [stdout] --> src/lib.rs:164:1 [INFO] [stdout] | [INFO] [stdout] 164 | lazy_static! { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/context.rs:29:11 [INFO] [stdout] | [INFO] [stdout] 29 | use std::{default::Default, iter::from_fn, mem::swap, rc::Rc}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/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: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:21:25 [INFO] [stdout] | [INFO] [stdout] 21 | fn apply(&mut self, Self::Delta); [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Delta` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:22:20 [INFO] [stdout] | [INFO] [stdout] 22 | fn diff(&self, Self) -> Self::Delta; [INFO] [stdout] | ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/delta.rs:53:27 [INFO] [stdout] | [INFO] [stdout] 53 | fn combine(&mut self, Self); [INFO] [stdout] | ^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [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` profile [unoptimized + debuginfo] target(s) in 27.88s [INFO] running `Command { std: "docker" "inspect" "ae6366dc1bd5796785c3ec7b0d366e5eb393f3a688e52728c6f95c9ec40118a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae6366dc1bd5796785c3ec7b0d366e5eb393f3a688e52728c6f95c9ec40118a6", kill_on_drop: false }` [INFO] [stdout] ae6366dc1bd5796785c3ec7b0d366e5eb393f3a688e52728c6f95c9ec40118a6