[INFO] fetching crate dairy 0.2.2...
[INFO] testing dairy-0.2.2 against 1.64.0 for beta-1.65-2
[INFO] extracting crate dairy 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dairy 0.2.2 on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dairy 0.2.2
[INFO] finished tweaking crates.io crate dairy 0.2.2
[INFO] tweaked toml for crates.io crate dairy 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded walkdir v2.3.2
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.6
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded tinytemplate v1.2.1
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded oorandom v11.1.3
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded itoa v0.4.8
[INFO] [stderr]   Downloaded itertools v0.10.5
[INFO] [stderr]   Downloaded lazy_static v1.4.0
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded bitflags v1.3.2
[INFO] [stderr]   Downloaded cast v0.3.0
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.83
[INFO] [stderr]   Downloaded clap v2.34.0
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] [stderr]   Downloaded rayon-core v1.9.3
[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.83
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.83
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded js-sys v0.3.60
[INFO] [stderr]   Downloaded bumpalo v3.11.0
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded beef v0.5.2
[INFO] [stderr]   Downloaded unicode-width v0.1.10
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded regex-automata v0.1.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.2
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded bstr v0.2.17
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded csv v1.1.6
[INFO] [stderr]   Downloaded web-sys v0.3.60
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.47
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.83
[INFO] [stderr]   Downloaded ryu v1.0.11
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.83
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded num_cpus v1.13.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded memoffset v0.6.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa1f570e5cb4f49b223eb56cf6c4a3041e32908b64eb91948b8edf7e330226fa
[INFO] running `Command { std: "docker" "start" "-a" "fa1f570e5cb4f49b223eb56cf6c4a3041e32908b64eb91948b8edf7e330226fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1f570e5cb4f49b223eb56cf6c4a3041e32908b64eb91948b8edf7e330226fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1f570e5cb4f49b223eb56cf6c4a3041e32908b64eb91948b8edf7e330226fa", kill_on_drop: false }`
[INFO] [stdout] fa1f570e5cb4f49b223eb56cf6c4a3041e32908b64eb91948b8edf7e330226fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ec364f1808f1b9a96e30c39dbed373a75c884a693fd3b500c4cad793d812ed5
[INFO] running `Command { std: "docker" "start" "-a" "3ec364f1808f1b9a96e30c39dbed373a75c884a693fd3b500c4cad793d812ed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling dairy v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "3ec364f1808f1b9a96e30c39dbed373a75c884a693fd3b500c4cad793d812ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec364f1808f1b9a96e30c39dbed373a75c884a693fd3b500c4cad793d812ed5", kill_on_drop: false }`
[INFO] [stdout] 3ec364f1808f1b9a96e30c39dbed373a75c884a693fd3b500c4cad793d812ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45928b259f1a13faef066d5e7500de9f3f8d0a8c611d5a0df2b371c88f797114
[INFO] running `Command { std: "docker" "start" "-a" "45928b259f1a13faef066d5e7500de9f3f8d0a8c611d5a0df2b371c88f797114", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling dairy v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/c_str.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     CString::from(T::borrowed(c_str()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/c_str.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     CString::from(T::owned(c_string()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/c_str.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     Box::<CStr>::from(T::borrowed(c_str()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/c_str.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     Box::<CStr>::from(T::owned(c_string()));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/path.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     PathBuf::from(T::borrowed(Path::new("/hello/world")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/path.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     PathBuf::from(T::owned(PathBuf::from("/hello/world")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/path.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Box::<Path>::from(T::borrowed(Path::new("/hello/world")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/path.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Box::<Path>::from(T::owned(PathBuf::from("/hello/world")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/str.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     String::from(T::borrowed("Hello World!"));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/str.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     String::from(T::owned(String::from("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/str.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     Box::<str>::from(T::borrowed("Hello World!"));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/str.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Box::<str>::from(T::owned(String::from("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/slice.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     Vec::from(T::borrowed(&["Hello", "World!"]));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/slice.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Vec::from(T::owned(vec!["Hello", "World!"]));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/slice.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Box::<[&str]>::from(T::borrowed(&["Hello", "World!"]));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/slice.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     Box::<[&str]>::from(T::owned(vec!["Hello", "World!"]));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/os_str.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     OsString::from(T::borrowed(OsStr::new("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/os_str.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     OsString::from(T::owned(OsString::from("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/os_str.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Box::<OsStr>::from(T::borrowed(OsStr::new("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> tests/os_str.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     Box::<OsStr>::from(T::owned(OsString::from("Hello World!")));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "45928b259f1a13faef066d5e7500de9f3f8d0a8c611d5a0df2b371c88f797114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45928b259f1a13faef066d5e7500de9f3f8d0a8c611d5a0df2b371c88f797114", kill_on_drop: false }`
[INFO] [stdout] 45928b259f1a13faef066d5e7500de9f3f8d0a8c611d5a0df2b371c88f797114
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4fac3f5cc50b34eb1a90d1c2f76f61602452ccf2aa6a891e40a326e0e91a300b
[INFO] running `Command { std: "docker" "start" "-a" "4fac3f5cc50b34eb1a90d1c2f76f61602452ccf2aa6a891e40a326e0e91a300b", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/c_str.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     CString::from(T::borrowed(c_str()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/c_str.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     CString::from(T::owned(c_string()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/c_str.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     Box::<CStr>::from(T::borrowed(c_str()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/c_str.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     Box::<CStr>::from(T::owned(c_string()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dairy` (test "c_str") generated 4 warnings
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/path.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     PathBuf::from(T::borrowed(Path::new("/hello/world")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/path.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     PathBuf::from(T::owned(PathBuf::from("/hello/world")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/path.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     Box::<Path>::from(T::borrowed(Path::new("/hello/world")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/path.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     Box::<Path>::from(T::owned(PathBuf::from("/hello/world")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dairy` (test "path") generated 4 warnings
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/str.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     String::from(T::borrowed("Hello World!"));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/str.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     String::from(T::owned(String::from("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/str.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     Box::<str>::from(T::borrowed("Hello World!"));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/str.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     Box::<str>::from(T::owned(String::from("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dairy` (test "str") generated 4 warnings
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/slice.rs:99:5
[INFO] [stderr]    |
[INFO] [stderr] 99 |     Vec::from(T::borrowed(&["Hello", "World!"]));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/slice.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     Vec::from(T::owned(vec!["Hello", "World!"]));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/slice.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     Box::<[&str]>::from(T::borrowed(&["Hello", "World!"]));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/slice.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     Box::<[&str]>::from(T::owned(vec!["Hello", "World!"]));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dairy` (test "slice") generated 4 warnings
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/os_str.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     OsString::from(T::borrowed(OsStr::new("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/os_str.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     OsString::from(T::owned(OsString::from("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/os_str.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     Box::<OsStr>::from(T::borrowed(OsStr::new("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> tests/os_str.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     Box::<OsStr>::from(T::owned(OsString::from("Hello World!")));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dairy` (test "os_str") generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dairy-a91bb99c4d88a383)
[INFO] [stderr]      Running tests/c_str.rs (/opt/rustwide/target/debug/deps/c_str-c8e16b2a051af700)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test cow_c_str_borrowed_as_ref ... ok
[INFO] [stdout] test cow_c_str_borrowed_ref ... ok
[INFO] [stdout] test cow_c_str_from ... ok
[INFO] [stdout] test cow_c_str_borrowed_into_owned ... ok
[INFO] [stdout] test cow_c_str_is_borrowed ... ok
[INFO] [stdout] test cow_c_str_borrowed_clone ... ok
[INFO] [stdout] test cow_c_str_borrowed_partial_eq ... ok
[INFO] [stdout] test cow_c_str_owned_clone ... ok
[INFO] [stdout] test cow_c_str_owned_ref ... ok
[INFO] [stdout] test cow_c_str_owned_into_owned ... ok
[INFO] [stdout] test cow_c_str_is_owned ... ok
[INFO] [stdout] test cow_c_str_owned_as_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/os_str.rs (/opt/rustwide/target/debug/deps/os_str-0cbf1ad1c4cb44cf)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test cow_os_str_borrowed_clone ... ok
[INFO] [stdout] test cow_os_str_borrowed_partial_eq ... ok
[INFO] [stdout] test cow_os_str_from_iter ... ok
[INFO] [stdout] test cow_os_str_borrowed_ref ... ok
[INFO] [stdout] test cow_os_str_borrowed_into_owned ... ok
[INFO] [stdout] test cow_os_str_from_str ... ok
[INFO] [stdout] test cow_os_str_is_owned ... ok
[INFO] [stdout] test cow_os_str_is_borrowed ... ok
[INFO] [stdout] test cow_os_str_extend ... ok
[INFO] [stdout] test cow_os_str_owned_into_owned ... ok
[INFO] [stdout] test cow_os_str_owned_ref ... ok
[INFO] [stdout] test cow_os_str_from ... ok
[INFO] [stdout] test cow_os_str_owned_clone ... ok
[INFO] [stdout] test cow_os_str_borrowed_as_ref ... ok
[INFO] [stdout] test cow_os_str_owned_as_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/path.rs (/opt/rustwide/target/debug/deps/path-9abd72d1b65a04af)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test cow_path_borrowed_as_ref ... ok
[INFO] [stdout] test cow_path_borrowed_into_owned ... ok
[INFO] [stdout] test cow_path_from ... ok
[INFO] [stdout] test cow_path_borrowed_clone ... ok
[INFO] [stdout] test cow_path_from_str ... ok
[INFO] [stdout] test cow_path_extend ... ok
[INFO] [stdout] test cow_path_is_owned ... ok
[INFO] [stdout] test cow_path_owned_clone ... ok
[INFO] [stdout] test cow_path_owned_into_owned ... ok
[INFO] [stdout] test cow_path_is_borrowed ... ok
[INFO] [stdout] test cow_path_borrowed_partial_eq ... ok
[INFO] [stdout] test cow_path_from_iter ... ok
[INFO] [stdout] test cow_path_borrowed_ref ... ok
[INFO] [stdout] test cow_path_owned_as_ref ... ok
[INFO] [stdout] test cow_path_owned_ref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/size.rs (/opt/rustwide/target/debug/deps/size-8235fedbcedefd45)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test size_os_str ... ok
[INFO] [stdout] test size_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/slice.rs (/opt/rustwide/target/debug/deps/slice-559ae413097d65e7)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test cow_slice_borrowed_clone ... ok
[INFO] [stdout] test cow_slice_from ... ok
[INFO] [stdout] test cow_slice_borrowed_partial_eq ... ok
[INFO] [stdout] test cow_slice_from_iter ... ok
[INFO] [stdout] test cow_slice_is_borrowed ... ok
[INFO] [stdout] test cow_slice_is_owned ... ok
[INFO] [stdout] test cow_slice_owned_as_ref ... ok
[INFO] [stdout] test cow_slice_owned_clone ... ok
[INFO] [stdout] test cow_slice_owned_ref ... ok
[INFO] [stdout] test cow_slice_borrowed_as_ref ... ok
[INFO] [stderr]      Running tests/str.rs (/opt/rustwide/target/debug/deps/str-fcc638b6c42559ac)
[INFO] [stdout] test cow_slice_borrowed_ref ... ok
[INFO] [stdout] test cow_slice_owned_into_owned ... ok
[INFO] [stdout] test cow_slice_extend ... ok
[INFO] [stdout] test cow_slice_borrowed_into_owned ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test cow_str_borrowed_as_ref ... ok
[INFO] [stdout] test cow_str_borrowed_clone ... ok
[INFO] [stdout] test cow_str_borrowed_partial_eq ... ok
[INFO] [stdout] test cow_str_borrowed_into_owned ... ok
[INFO] [stdout] test cow_str_borrowed_ref ... ok
[INFO] [stdout] test cow_str_from_iter ... ok
[INFO] [stdout] test cow_str_owned_clone ... ok
[INFO] [stdout] test cow_str_from ... ok
[INFO] [stdout] test cow_str_owned_into_owned ... ok
[INFO] [stdout] test cow_str_owned_as_ref ... ok
[INFO] [stdout] test cow_str_is_owned ... ok
[INFO] [stdout] test cow_str_owned_ref ... ok
[INFO] [stdout] test cow_str_is_borrowed ... ok
[INFO] [stdout] test cow_str_from_str ... ok
[INFO] [stdout] test cow_str_extend ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dairy
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - Cow::borrowed (line 120) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] test src/lib.rs - Cow::into_owned (line 204) ... ok
[INFO] [stdout] test src/lib.rs - Cow::is_borrowed (line 150) ... ok
[INFO] [stdout] test src/lib.rs - Cow::into_owned (line 195) ... ok
[INFO] [stdout] test src/lib.rs - Cow::apply (line 255) ... ok
[INFO] [stdout] test src/lib.rs - Cow::into_boxed (line 223) ... ok
[INFO] [stdout] test src/lib.rs - Cow::owned (line 135) ... ok
[INFO] [stdout] test src/lib.rs - Cow::into_boxed (line 232) ... ok
[INFO] [stdout] test src/lib.rs - Cow::is_owned (line 168) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.86s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4fac3f5cc50b34eb1a90d1c2f76f61602452ccf2aa6a891e40a326e0e91a300b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fac3f5cc50b34eb1a90d1c2f76f61602452ccf2aa6a891e40a326e0e91a300b", kill_on_drop: false }`
[INFO] [stdout] 4fac3f5cc50b34eb1a90d1c2f76f61602452ccf2aa6a891e40a326e0e91a300b