[INFO] fetching crate mockers 0.23.0...
[INFO] checking mockers-0.23.0 against master#be181dd75c83d72fcc95538e235768bc367b76b9 for pr-140208
[INFO] extracting crate mockers 0.23.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mockers 0.23.0 on toolchain be181dd75c83d72fcc95538e235768bc367b76b9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mockers 0.23.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mockers 0.23.0
[INFO] tweaked toml for crates.io crate mockers 0.23.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 57 packages to latest compatible versions
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded contracts v0.4.0
[INFO] [stderr]   Downloaded vector-map v1.0.1
[INFO] [stderr]   Downloaded no_deadlocks v1.3.2
[INFO] [stderr]   Downloaded mockers_derive v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb723daaa3fd12b62a4e0591b9c7d51fc228895a569ebcf5dd866deae86b266a
[INFO] running `Command { std: "docker" "start" "-a" "cb723daaa3fd12b62a4e0591b9c7d51fc228895a569ebcf5dd866deae86b266a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb723daaa3fd12b62a4e0591b9c7d51fc228895a569ebcf5dd866deae86b266a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb723daaa3fd12b62a4e0591b9c7d51fc228895a569ebcf5dd866deae86b266a", kill_on_drop: false }`
[INFO] [stdout] cb723daaa3fd12b62a4e0591b9c7d51fc228895a569ebcf5dd866deae86b266a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaedec166c3307a668590b3376a4338e4d43393b8a7e401d32fd6a7cffac2b9b
[INFO] running `Command { std: "docker" "start" "-a" "eaedec166c3307a668590b3376a4338e4d43393b8a7e401d32fd6a7cffac2b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking send_wrapper v0.6.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking mockers v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stdout] warning: trait `MaybeDebug` is never used
[INFO] [stdout]  --> src/dbg.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait MaybeDebug {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]    Compiling proc-quote v0.4.0
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling mockers_derive v0.23.0
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stdout] warning: method `foo` is never used
[INFO] [stdout]  --> tests/nested.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait A {
[INFO] [stdout]   |               - method in this trait
[INFO] [stdout] 7 |         fn foo(&self);
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]   --> tests/impl_trait.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |         #[mocked(return_type=u32)]
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 24 |         fn foo(&self) -> impl Sized;
[INFO] [stdout]    |                          ---------- return type from trait method defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]    = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]    = note: `#[warn(refining_impl_trait_internal)]` on by default
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]    |
[INFO] [stdout] 23 -         #[mocked(return_type=u32)]
[INFO] [stdout] 23 +         #[mocked(return_type=impl Sized)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foo` is never used
[INFO] [stdout]    --> tests/multi_trait.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub trait A {
[INFO] [stdout]     |               - method in this trait
[INFO] [stdout] 164 |         fn foo(&self, a: u32);
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bar` is never used
[INFO] [stdout]    --> tests/multi_trait.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub trait B: A {
[INFO] [stdout]     |               - method in this trait
[INFO] [stdout] 168 |         fn bar(&self, b: u32);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MaybeDebug` is never used
[INFO] [stdout]  --> src/dbg.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait MaybeDebug {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.30s
[INFO] running `Command { std: "docker" "inspect" "eaedec166c3307a668590b3376a4338e4d43393b8a7e401d32fd6a7cffac2b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaedec166c3307a668590b3376a4338e4d43393b8a7e401d32fd6a7cffac2b9b", kill_on_drop: false }`
[INFO] [stdout] eaedec166c3307a668590b3376a4338e4d43393b8a7e401d32fd6a7cffac2b9b