[INFO] fetching crate libc-print 0.1.19...
[INFO] testing libc-print-0.1.19 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate libc-print 0.1.19 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate libc-print 0.1.19 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 libc-print 0.1.19
[INFO] finished tweaking crates.io crate libc-print 0.1.19
[INFO] tweaked toml for crates.io crate libc-print 0.1.19 written to /workspace/builds/worker-70/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] 11670868cd650c44ad05f2f081e54637d05bb7cf0e2d08d5434c380d7bed1b6b
[INFO] running `Command { std: "docker" "start" "-a" "11670868cd650c44ad05f2f081e54637d05bb7cf0e2d08d5434c380d7bed1b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11670868cd650c44ad05f2f081e54637d05bb7cf0e2d08d5434c380d7bed1b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11670868cd650c44ad05f2f081e54637d05bb7cf0e2d08d5434c380d7bed1b6b", kill_on_drop: false }`
[INFO] [stdout] 11670868cd650c44ad05f2f081e54637d05bb7cf0e2d08d5434c380d7bed1b6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] 5fee61299315cdad734ed9764cbe9f8853462e899f21160006e1be45a087c480
[INFO] running `Command { std: "docker" "start" "-a" "5fee61299315cdad734ed9764cbe9f8853462e899f21160006e1be45a087c480", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling libc-print v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 | / mod c {
[INFO] [stdout] 24 | |     extern "C" {}
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- not an `extern` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `Command { std: "docker" "inspect" "5fee61299315cdad734ed9764cbe9f8853462e899f21160006e1be45a087c480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fee61299315cdad734ed9764cbe9f8853462e899f21160006e1be45a087c480", kill_on_drop: false }`
[INFO] [stdout] 5fee61299315cdad734ed9764cbe9f8853462e899f21160006e1be45a087c480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] e54e05d158f22103c9836fa4bccb50eb0a08ef3ffdd28198fdb21d47f752b223
[INFO] running `Command { std: "docker" "start" "-a" "e54e05d158f22103c9836fa4bccb50eb0a08ef3ffdd28198fdb21d47f752b223", 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]    Compiling libc-print v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 | / mod c {
[INFO] [stdout] 24 | |     extern "C" {}
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- not an `extern` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 | / mod c {
[INFO] [stdout] 24 | |     extern "C" {}
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- not an `extern` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/libc_print-82a872a5f0cc6290)
[INFO] running `Command { std: "docker" "inspect" "e54e05d158f22103c9836fa4bccb50eb0a08ef3ffdd28198fdb21d47f752b223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54e05d158f22103c9836fa4bccb50eb0a08ef3ffdd28198fdb21d47f752b223", kill_on_drop: false }`
[INFO] [stdout] e54e05d158f22103c9836fa4bccb50eb0a08ef3ffdd28198fdb21d47f752b223
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] 214d9e9e5ad6b0152879f91781a525e3c3c4826c83f26c2ad7ac19b76479c743
[INFO] running `Command { std: "docker" "start" "-a" "214d9e9e5ad6b0152879f91781a525e3c3c4826c83f26c2ad7ac19b76479c743", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: attribute should be applied to an `extern` block
[INFO] [stdout] running 6 tests
[INFO] [stderr]   --> src/lib.rs:22:1
[INFO] [stdout] stdout fd = 1
[INFO] [stderr]    |
[INFO] [stdout] stdout fd = 1
[INFO] [stderr] 22 |   #[link(name="c")]
[INFO] [stdout] test std_name::tests_std_name::test_stderr ... ok
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] test std_name::tests_std_name::test_stdout ... ok
[INFO] [stderr] 23 | / mod c {
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stderr] 24 | |     extern "C" {}
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stderr] 25 | | }
[INFO] [stdout] stdout!
[INFO] [stderr]    | |_- not an `extern` block
[INFO] [stdout] test tests::test_stdout_write ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `libc-print` (lib) generated 1 warning
[INFO] [stderr] warning: `libc-print` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libc_print-82a872a5f0cc6290)
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr fd = 2
[INFO] [stderr] stderr!
[INFO] [stderr]    Doc-tests libc_print
[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" "214d9e9e5ad6b0152879f91781a525e3c3c4826c83f26c2ad7ac19b76479c743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214d9e9e5ad6b0152879f91781a525e3c3c4826c83f26c2ad7ac19b76479c743", kill_on_drop: false }`
[INFO] [stdout] 214d9e9e5ad6b0152879f91781a525e3c3c4826c83f26c2ad7ac19b76479c743