[INFO] fetching crate tracers-codegen 0.1.0...
[INFO] checking tracers-codegen-0.1.0 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate tracers-codegen 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tracers-codegen 0.1.0 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracers-codegen 0.1.0
[INFO] finished tweaking crates.io crate tracers-codegen 0.1.0
[INFO] tweaked toml for crates.io crate tracers-codegen 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0764427ac0fd6f27b3cd3315cf9738b0f2dd781516671a06765e8929ae1bd17e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0764427ac0fd6f27b3cd3315cf9738b0f2dd781516671a06765e8929ae1bd17e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0764427ac0fd6f27b3cd3315cf9738b0f2dd781516671a06765e8929ae1bd17e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0764427ac0fd6f27b3cd3315cf9738b0f2dd781516671a06765e8929ae1bd17e", kill_on_drop: false }`
[INFO] [stdout] 0764427ac0fd6f27b3cd3315cf9738b0f2dd781516671a06765e8929ae1bd17e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 292d2e850587103ec1a59b962815dbc1fc9bf4406930f877f0d8cbb078acd909
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "292d2e850587103ec1a59b962815dbc1fc9bf4406930f877f0d8cbb078acd909", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking cc v1.0.60
[INFO] [stderr]     Checking pkg-config v0.3.18
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking darling v0.10.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling tracers-core v0.1.0
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking serde_str v0.1.0
[INFO] [stderr]     Checking askama_shared v0.8.0
[INFO] [stderr]     Checking proc-macro-crate v0.1.5
[INFO] [stderr]     Checking cargo_metadata v0.9.1
[INFO] [stderr]    Compiling askama_derive v0.8.0
[INFO] [stderr]     Checking askama v0.8.0
[INFO] [stderr]     Checking tracers-codegen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/gen/static/native_code/mod.rs:296:44
[INFO] [stdout]     |
[INFO] [stdout] 296 |             for first_run in [true, false].into_iter() {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(array_into_iter)]` implied by `#[deny(warnings)]`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracers-codegen`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "292d2e850587103ec1a59b962815dbc1fc9bf4406930f877f0d8cbb078acd909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "292d2e850587103ec1a59b962815dbc1fc9bf4406930f877f0d8cbb078acd909", kill_on_drop: false }`
[INFO] [stdout] 292d2e850587103ec1a59b962815dbc1fc9bf4406930f877f0d8cbb078acd909