[INFO] fetching crate rdxl_internals 0.0.10...
[INFO] checking rdxl_internals-0.0.10 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate rdxl_internals 0.0.10 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rdxl_internals 0.0.10 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rdxl_internals 0.0.10
[INFO] finished tweaking crates.io crate rdxl_internals 0.0.10
[INFO] tweaked toml for crates.io crate rdxl_internals 0.0.10 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 1f14a1c685d9d3b279da506b2c456f1a3534058f5e8e8a22148f52c90c26f222
[INFO] running `Command { std: "docker" "start" "-a" "1f14a1c685d9d3b279da506b2c456f1a3534058f5e8e8a22148f52c90c26f222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f14a1c685d9d3b279da506b2c456f1a3534058f5e8e8a22148f52c90c26f222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f14a1c685d9d3b279da506b2c456f1a3534058f5e8e8a22148f52c90c26f222", kill_on_drop: false }`
[INFO] [stdout] 1f14a1c685d9d3b279da506b2c456f1a3534058f5e8e8a22148f52c90c26f222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] ab5b2090a0a08a2982d9817d03522ff05551238521fb5e3f4ce8753d8b7ade84
[INFO] running `Command { std: "docker" "start" "-a" "ab5b2090a0a08a2982d9817d03522ff05551238521fb5e3f4ce8753d8b7ade84", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v1.0.69
[INFO] [stderr]     Checking rdxl_internals v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `quote_spanned`
[INFO] [stdout]  --> src/xtext.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use quote::{quote_spanned, ToTokens};
[INFO] [stdout]   |             ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote_spanned`
[INFO] [stdout]  --> src/xtext.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 | use quote::{quote_spanned, ToTokens};
[INFO] [stdout]   |             ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]   --> src/xtext.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut prev: Option<Span> = None;
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]   --> src/xtext.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut prev: Option<Span> = None;
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/xtext.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut prev: Option<Span> = None;
[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] warning: variable `Xtexts` should have a snake case name
[INFO] [stdout]   --> src/xtext_display_expr.rs:19:26
[INFO] [stdout]    |
[INFO] [stdout] 19 |          XtextDisplay::X(Xtexts) => {
[INFO] [stdout]    |                          ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `xtexts`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Xtext` should have a snake case name
[INFO] [stdout]   --> src/xtext_display_expr.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |        let Xtext: Xtext = input.parse()?;
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to snake case (notice the capitalization): `xtext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/xtext.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut prev: Option<Span> = None;
[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] warning: variable `Xtexts` should have a snake case name
[INFO] [stdout]   --> src/xtext_display_expr.rs:19:26
[INFO] [stdout]    |
[INFO] [stdout] 19 |          XtextDisplay::X(Xtexts) => {
[INFO] [stdout]    |                          ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `xtexts`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Xtext` should have a snake case name
[INFO] [stdout]   --> src/xtext_display_expr.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |        let Xtext: Xtext = input.parse()?;
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to snake case (notice the capitalization): `xtext`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `Command { std: "docker" "inspect" "ab5b2090a0a08a2982d9817d03522ff05551238521fb5e3f4ce8753d8b7ade84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5b2090a0a08a2982d9817d03522ff05551238521fb5e3f4ce8753d8b7ade84", kill_on_drop: false }`
[INFO] [stdout] ab5b2090a0a08a2982d9817d03522ff05551238521fb5e3f4ce8753d8b7ade84