[INFO] fetching crate fnmutant 0.1.0...
[INFO] testing fnmutant-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate fnmutant 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fnmutant 0.1.0
[INFO] finished tweaking crates.io crate fnmutant 0.1.0
[INFO] tweaked toml for crates.io crate fnmutant 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fnmutant 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b92ff98c4c2dc750038ff500401e20ffadfcb4944e482812b9ed8c3298a538ce
[INFO] running `Command { std: "docker" "start" "-a" "b92ff98c4c2dc750038ff500401e20ffadfcb4944e482812b9ed8c3298a538ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b92ff98c4c2dc750038ff500401e20ffadfcb4944e482812b9ed8c3298a538ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92ff98c4c2dc750038ff500401e20ffadfcb4944e482812b9ed8c3298a538ce", kill_on_drop: false }`
[INFO] [stdout] b92ff98c4c2dc750038ff500401e20ffadfcb4944e482812b9ed8c3298a538ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f06d9c43d3bfb60aefd5a4006248571e4a4a0e1ec06b33ff549c6cd114944385
[INFO] running `Command { std: "docker" "start" "-a" "f06d9c43d3bfb60aefd5a4006248571e4a4a0e1ec06b33ff549c6cd114944385", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnmutant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f06d9c43d3bfb60aefd5a4006248571e4a4a0e1ec06b33ff549c6cd114944385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f06d9c43d3bfb60aefd5a4006248571e4a4a0e1ec06b33ff549c6cd114944385", kill_on_drop: false }`
[INFO] [stdout] f06d9c43d3bfb60aefd5a4006248571e4a4a0e1ec06b33ff549c6cd114944385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d87a347d9e3f5b19166fa97d447e0b5a9f5739e8ffeda7831292e70414bfc7
[INFO] running `Command { std: "docker" "start" "-a" "f9d87a347d9e3f5b19166fa97d447e0b5a9f5739e8ffeda7831292e70414bfc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling fnmutant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             drop(xs);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `[i32; 6]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 63 -             drop(xs);
[INFO] [stdout] 63 +             let _ = xs;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/lib.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |             drop(xs);
[INFO] [stdout]    |             ^^^^^--^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `[i32; 6]`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 70 -             drop(xs);
[INFO] [stdout] 70 +             let _ = xs;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "f9d87a347d9e3f5b19166fa97d447e0b5a9f5739e8ffeda7831292e70414bfc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d87a347d9e3f5b19166fa97d447e0b5a9f5739e8ffeda7831292e70414bfc7", kill_on_drop: false }`
[INFO] [stdout] f9d87a347d9e3f5b19166fa97d447e0b5a9f5739e8ffeda7831292e70414bfc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db69954fdf2056ca878850eed587b472f683e0afc6170a62b0e1f5bbe0dc648a
[INFO] running `Command { std: "docker" "start" "-a" "db69954fdf2056ca878850eed587b472f683e0afc6170a62b0e1f5bbe0dc648a", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]   --> src/lib.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             drop(xs);
[INFO] [stderr]    |             ^^^^^--^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  argument has type `[i32; 6]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 63 -             drop(xs);
[INFO] [stderr] 63 +             let _ = xs;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]   --> src/lib.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |             drop(xs);
[INFO] [stderr]    |             ^^^^^--^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  argument has type `[i32; 6]`
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 70 -             drop(xs);
[INFO] [stderr] 70 +             let _ = xs;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `fnmutant` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fnmutant-f09f317a2215dee2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fnmutant
[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] running `Command { std: "docker" "inspect" "db69954fdf2056ca878850eed587b472f683e0afc6170a62b0e1f5bbe0dc648a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db69954fdf2056ca878850eed587b472f683e0afc6170a62b0e1f5bbe0dc648a", kill_on_drop: false }`
[INFO] [stdout] db69954fdf2056ca878850eed587b472f683e0afc6170a62b0e1f5bbe0dc648a
