[INFO] fetching crate mockiato-codegen 0.9.5...
[INFO] testing mockiato-codegen-0.9.5 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate mockiato-codegen 0.9.5 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate mockiato-codegen 0.9.5 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mockiato-codegen 0.9.5
[INFO] finished tweaking crates.io crate mockiato-codegen 0.9.5
[INFO] tweaked toml for crates.io crate mockiato-codegen 0.9.5 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce1d1989cc0d78b344c1f53992195f40acd5fa3bf02c40a32dbb8783ddf1d9ae
[INFO] running `Command { std: "docker" "start" "-a" "ce1d1989cc0d78b344c1f53992195f40acd5fa3bf02c40a32dbb8783ddf1d9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce1d1989cc0d78b344c1f53992195f40acd5fa3bf02c40a32dbb8783ddf1d9ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1d1989cc0d78b344c1f53992195f40acd5fa3bf02c40a32dbb8783ddf1d9ae", kill_on_drop: false }`
[INFO] [stdout] ce1d1989cc0d78b344c1f53992195f40acd5fa3bf02c40a32dbb8783ddf1d9ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d011ad89719285eee743d92b424272132ffb1c4ed73d2a6d7964bd52c29055d4
[INFO] running `Command { std: "docker" "start" "-a" "d011ad89719285eee743d92b424272132ffb1c4ed73d2a6d7964bd52c29055d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling mockiato-codegen v0.9.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stdout] error: unused extern crate
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate proc_macro;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     rust_2018_idioms,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_extern_crates)]` implied by `#[deny(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attrs`
[INFO] [stdout]   --> src/parse/method_decl.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub(crate) attrs: Vec<Attribute>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/parse/method_decl.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub(crate) span: Span,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/parse/method_inputs.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub(crate) span: Span,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `supertraits`
[INFO] [stdout]   --> src/parse/trait_decl.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub(crate) supertraits: Punctuated<TypeParamBound, Token![+]>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mockiato-codegen` due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d011ad89719285eee743d92b424272132ffb1c4ed73d2a6d7964bd52c29055d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d011ad89719285eee743d92b424272132ffb1c4ed73d2a6d7964bd52c29055d4", kill_on_drop: false }`
[INFO] [stdout] d011ad89719285eee743d92b424272132ffb1c4ed73d2a6d7964bd52c29055d4