[INFO] fetching crate shoulda_core 0.2.1...
[INFO] building shoulda_core-0.2.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate shoulda_core 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate shoulda_core 0.2.1
[INFO] finished tweaking crates.io crate shoulda_core 0.2.1
[INFO] tweaked toml for crates.io crate shoulda_core 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shoulda_core 0.2.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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 9 packages to latest compatible versions
[INFO] [stderr]       Adding const_env_impl v0.1.2 (available: v0.1.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_env v0.1.2
[INFO] [stderr]   Downloaded const_env_impl v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb1bf94b5f9d8b0b947429aa11312c582f9c730f9fe56bd03a43eacb5b01a861
[INFO] running `Command { std: "docker" "start" "-a" "cb1bf94b5f9d8b0b947429aa11312c582f9c730f9fe56bd03a43eacb5b01a861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb1bf94b5f9d8b0b947429aa11312c582f9c730f9fe56bd03a43eacb5b01a861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1bf94b5f9d8b0b947429aa11312c582f9c730f9fe56bd03a43eacb5b01a861", kill_on_drop: false }`
[INFO] [stdout] cb1bf94b5f9d8b0b947429aa11312c582f9c730f9fe56bd03a43eacb5b01a861
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e6c38cf141ae802af6693ad155352fcf96cb47ab5f8ff9b995c794bdc5f2c3
[INFO] running `Command { std: "docker" "start" "-a" "86e6c38cf141ae802af6693ad155352fcf96cb47ab5f8ff9b995c794bdc5f2c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling const_env_impl v0.1.2
[INFO] [stderr]    Compiling const_env v0.1.2
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling shoulda_core v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:130:15
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<Self>
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<'_, Self>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs:312:1: 312:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs" }) }
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/wrapper_types.rs:72:47
[INFO] [stdout]    |
[INFO] [stdout] 72 |         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout]    |                                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Cell<T>` does not implement `Borrow`, so calling `borrow` on `&Cell<T>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 72 -         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout] 72 +         self.get().should_eq::<Epsilon>(&other.get())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "86e6c38cf141ae802af6693ad155352fcf96cb47ab5f8ff9b995c794bdc5f2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e6c38cf141ae802af6693ad155352fcf96cb47ab5f8ff9b995c794bdc5f2c3", kill_on_drop: false }`
[INFO] [stdout] 86e6c38cf141ae802af6693ad155352fcf96cb47ab5f8ff9b995c794bdc5f2c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00289a4f738056dfff770aac9c8bb1b36a6d03719f7625f8753746a626d3a8b9
[INFO] running `Command { std: "docker" "start" "-a" "00289a4f738056dfff770aac9c8bb1b36a6d03719f7625f8753746a626d3a8b9", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:130:15
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<Self>
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<'_, Self>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs:312:1: 312:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs" }) }
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/wrapper_types.rs:72:47
[INFO] [stdout]    |
[INFO] [stdout] 72 |         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout]    |                                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Cell<T>` does not implement `Borrow`, so calling `borrow` on `&Cell<T>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 72 -         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout] 72 +         self.get().should_eq::<Epsilon>(&other.get())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling shoulda_core v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:130:15
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<Self>
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn should(&self) -> Should<'_, Self>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  WARN rustc_errors::emitter Invalid span /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs:312:1: 312:1 (#0), error=SourceNotAvailable { filename: Real(Remapped { local_path: None, virtual_name: "/rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/core/src/cell.rs" }) }
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/wrapper_types.rs:72:47
[INFO] [stdout]    |
[INFO] [stdout] 72 |         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout]    |                                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Cell<T>` does not implement `Borrow`, so calling `borrow` on `&Cell<T>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 72 -         self.get().should_eq::<Epsilon>(&other.borrow().get())
[INFO] [stdout] 72 +         self.get().should_eq::<Epsilon>(&other.get())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "00289a4f738056dfff770aac9c8bb1b36a6d03719f7625f8753746a626d3a8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00289a4f738056dfff770aac9c8bb1b36a6d03719f7625f8753746a626d3a8b9", kill_on_drop: false }`
[INFO] [stdout] 00289a4f738056dfff770aac9c8bb1b36a6d03719f7625f8753746a626d3a8b9
