[INFO] fetching crate ctchi_codegen 0.2.0...
[INFO] checking ctchi_codegen-0.2.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate ctchi_codegen 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ctchi_codegen 0.2.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ctchi_codegen 0.2.0
[INFO] finished tweaking crates.io crate ctchi_codegen 0.2.0
[INFO] tweaked toml for crates.io crate ctchi_codegen 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db69328d52dc958ba164ec4bae30e86351b1925f2e2a476126f6fa88fb7e2e30
[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" "db69328d52dc958ba164ec4bae30e86351b1925f2e2a476126f6fa88fb7e2e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db69328d52dc958ba164ec4bae30e86351b1925f2e2a476126f6fa88fb7e2e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db69328d52dc958ba164ec4bae30e86351b1925f2e2a476126f6fa88fb7e2e30", kill_on_drop: false }`
[INFO] [stdout] db69328d52dc958ba164ec4bae30e86351b1925f2e2a476126f6fa88fb7e2e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c88844fe13d32f12f34212bd4575779a31f43b4297db4bac3576a850cf2185f5
[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" "c88844fe13d32f12f34212bd4575779a31f43b4297db4bac3576a850cf2185f5", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking syn v1.0.54
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking ctchi_codegen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ParseStream`, `Parse`
[INFO] [stdout]  --> src/lib.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::parse::{ParseStream, Parse};
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::token::Token`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParseStream`, `Parse`
[INFO] [stdout]  --> src/lib.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::parse::{ParseStream, Parse};
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::token::Token`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                  ^^^^^ help: try ignoring the field: `attrs: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `colon_token`
[INFO] [stdout]   --> src/lib.rs:29:46
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                              ^^^^^^^^^^^ help: try ignoring the field: `colon_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/lib.rs:29:59
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                                           ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:33:43
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                           ^^^^^ help: try ignoring the field: `attrs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `by_ref`
[INFO] [stdout]   --> src/lib.rs:33:50
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                  ^^^^^^ help: try ignoring the field: `by_ref: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutability`
[INFO] [stdout]   --> src/lib.rs:33:58
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                          ^^^^^^^^^^ help: try ignoring the field: `mutability: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subpat`
[INFO] [stdout]   --> src/lib.rs:33:77
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                                             ^^^^^^ help: try ignoring the field: `subpat: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:29:34
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                  ^^^^^ help: try ignoring the field: `attrs: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `colon_token`
[INFO] [stdout]   --> src/lib.rs:29:46
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                              ^^^^^^^^^^^ help: try ignoring the field: `colon_token: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ty`
[INFO] [stdout]   --> src/lib.rs:29:59
[INFO] [stdout]    |
[INFO] [stdout] 29 |             FnArg::Typed(PatType{attrs, pat, colon_token, ty}) => pat,
[INFO] [stdout]    |                                                           ^^ help: try ignoring the field: `ty: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/lib.rs:33:43
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                           ^^^^^ help: try ignoring the field: `attrs: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `by_ref`
[INFO] [stdout]   --> src/lib.rs:33:50
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                  ^^^^^^ help: try ignoring the field: `by_ref: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutability`
[INFO] [stdout]   --> src/lib.rs:33:58
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                          ^^^^^^^^^^ help: try ignoring the field: `mutability: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subpat`
[INFO] [stdout]   --> src/lib.rs:33:77
[INFO] [stdout]    |
[INFO] [stdout] 33 |         if let syn::Pat::Ident(PatIdent { attrs, by_ref, mutability, ident, subpat }) = input_pat.as_ref() {
[INFO] [stdout]    |                                                                             ^^^^^^ help: try ignoring the field: `subpat: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
[INFO] running `Command { std: "docker" "inspect" "c88844fe13d32f12f34212bd4575779a31f43b4297db4bac3576a850cf2185f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c88844fe13d32f12f34212bd4575779a31f43b4297db4bac3576a850cf2185f5", kill_on_drop: false }`
[INFO] [stdout] c88844fe13d32f12f34212bd4575779a31f43b4297db4bac3576a850cf2185f5