[INFO] fetching crate rure 0.2.1...
[INFO] testing rure-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rure 0.2.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate rure 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rure 0.2.1
[INFO] finished tweaking crates.io crate rure 0.2.1
[INFO] tweaked toml for crates.io crate rure 0.2.1 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16142fb96f736e8e7621648121924b3b91284d76ef3437d6c00147435e45537d
[INFO] running `Command { std: "docker" "start" "-a" "16142fb96f736e8e7621648121924b3b91284d76ef3437d6c00147435e45537d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16142fb96f736e8e7621648121924b3b91284d76ef3437d6c00147435e45537d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16142fb96f736e8e7621648121924b3b91284d76ef3437d6c00147435e45537d", kill_on_drop: false }`
[INFO] [stdout] 16142fb96f736e8e7621648121924b3b91284d76ef3437d6c00147435e45537d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fda8d322b6c9ab8cf4e576fe13d714ee6ec43c69332fb85051a9855b0f77c1da
[INFO] running `Command { std: "docker" "start" "-a" "fda8d322b6c9ab8cf4e576fe13d714ee6ec43c69332fb85051a9855b0f77c1da", kill_on_drop: false }`
[INFO] [stderr]    Compiling rure v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/rure.rs:260:17
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 CString::from_raw(ptr);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/rure.rs:630:18
[INFO] [stdout]     |
[INFO] [stdout] 630 |         unsafe { CString::from_raw(s); }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "fda8d322b6c9ab8cf4e576fe13d714ee6ec43c69332fb85051a9855b0f77c1da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fda8d322b6c9ab8cf4e576fe13d714ee6ec43c69332fb85051a9855b0f77c1da", kill_on_drop: false }`
[INFO] [stdout] fda8d322b6c9ab8cf4e576fe13d714ee6ec43c69332fb85051a9855b0f77c1da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7bb6fcf35749cfdd3ec3fa5040a547ce40dd7525a608f2107ec23b8c5c05248
[INFO] running `Command { std: "docker" "start" "-a" "e7bb6fcf35749cfdd3ec3fa5040a547ce40dd7525a608f2107ec23b8c5c05248", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rure v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/rure.rs:260:17
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 CString::from_raw(ptr);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stdout]    --> src/rure.rs:630:18
[INFO] [stdout]     |
[INFO] [stdout] 630 |         unsafe { CString::from_raw(s); }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.25s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rure-19941c7a15ca3553)
[INFO] running `Command { std: "docker" "inspect" "e7bb6fcf35749cfdd3ec3fa5040a547ce40dd7525a608f2107ec23b8c5c05248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7bb6fcf35749cfdd3ec3fa5040a547ce40dd7525a608f2107ec23b8c5c05248", kill_on_drop: false }`
[INFO] [stdout] e7bb6fcf35749cfdd3ec3fa5040a547ce40dd7525a608f2107ec23b8c5c05248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e5fec89a9e1d81510db3d777dea8f3f09b362d6cd4f8b0f1b5f7cd668d4c19d
[INFO] running `Command { std: "docker" "start" "-a" "8e5fec89a9e1d81510db3d777dea8f3f09b362d6cd4f8b0f1b5f7cd668d4c19d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stderr]    --> src/rure.rs:260:17
[INFO] [stderr]     |
[INFO] [stderr] 260 |                 CString::from_raw(ptr);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `CString::from_raw` that must be used
[INFO] [stderr]    --> src/rure.rs:630:18
[INFO] [stderr]     |
[INFO] [stderr] 630 |         unsafe { CString::from_raw(s); }
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: call `drop(from_raw(ptr))` if you intend to drop the `CString`
[INFO] [stderr] 
[INFO] [stderr] warning: `rure` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rure-19941c7a15ca3553)
[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" "8e5fec89a9e1d81510db3d777dea8f3f09b362d6cd4f8b0f1b5f7cd668d4c19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e5fec89a9e1d81510db3d777dea8f3f09b362d6cd4f8b0f1b5f7cd668d4c19d", kill_on_drop: false }`
[INFO] [stdout] 8e5fec89a9e1d81510db3d777dea8f3f09b362d6cd4f8b0f1b5f7cd668d4c19d