[INFO] fetching crate libc-print 0.1.17...
[INFO] testing libc-print-0.1.17 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate libc-print 0.1.17 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libc-print 0.1.17 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libc-print 0.1.17
[INFO] finished tweaking crates.io crate libc-print 0.1.17
[INFO] tweaked toml for crates.io crate libc-print 0.1.17 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a911858bdf6b17f3d30d6da475545611c8bdb06da90d837f68acabf7f8b4e75
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a911858bdf6b17f3d30d6da475545611c8bdb06da90d837f68acabf7f8b4e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a911858bdf6b17f3d30d6da475545611c8bdb06da90d837f68acabf7f8b4e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a911858bdf6b17f3d30d6da475545611c8bdb06da90d837f68acabf7f8b4e75", kill_on_drop: false }`
[INFO] [stdout] 9a911858bdf6b17f3d30d6da475545611c8bdb06da90d837f68acabf7f8b4e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f433b32d720beb8775352167246f97d7044747afe0d879fd4d3f121f2c15f37c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f433b32d720beb8775352167246f97d7044747afe0d879fd4d3f121f2c15f37c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 | / mod c {
[INFO] [stdout] 21 | |     extern "C" {}
[INFO] [stdout] 22 | | }
[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 0.29s
[INFO] running `Command { std: "docker" "inspect" "f433b32d720beb8775352167246f97d7044747afe0d879fd4d3f121f2c15f37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f433b32d720beb8775352167246f97d7044747afe0d879fd4d3f121f2c15f37c", kill_on_drop: false }`
[INFO] [stdout] f433b32d720beb8775352167246f97d7044747afe0d879fd4d3f121f2c15f37c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 182795c68564c514c487df84d1ef17c96fce9c54e4a4d1cc75287fc62555b0b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "182795c68564c514c487df84d1ef17c96fce9c54e4a4d1cc75287fc62555b0b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc-print v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 | / mod c {
[INFO] [stdout] 21 | |     extern "C" {}
[INFO] [stdout] 22 | | }
[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:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 |   #[link(name="c")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 | / mod c {
[INFO] [stdout] 21 | |     extern "C" {}
[INFO] [stdout] 22 | | }
[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 0.94s
[INFO] running `Command { std: "docker" "inspect" "182795c68564c514c487df84d1ef17c96fce9c54e4a4d1cc75287fc62555b0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182795c68564c514c487df84d1ef17c96fce9c54e4a4d1cc75287fc62555b0b2", kill_on_drop: false }`
[INFO] [stdout] 182795c68564c514c487df84d1ef17c96fce9c54e4a4d1cc75287fc62555b0b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7f88844edeffde38b27709a6f5ec94cd4ca583efbc0ef76635f03d0842c54a6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7f88844edeffde38b27709a6f5ec94cd4ca583efbc0ef76635f03d0842c54a6", kill_on_drop: false }`
[INFO] [stderr] warning: attribute should be applied to an `extern` block
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 |   #[link(name="c")]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 20 | / mod c {
[INFO] [stderr] 21 | |     extern "C" {}
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_- not an `extern` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[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] [stderr] 
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libc_print-2c30c718dadf2ace)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] stdout fd = 1
[INFO] [stderr] stderr fd = 2
[INFO] [stdout] test std_name::tests_std_name::test_stderr ... ok
[INFO] [stdout] test std_name::tests_std_name::test_stdout ... ok
[INFO] [stdout] test tests::test_stderr ... ok
[INFO] [stdout] stdout!
[INFO] [stdout] test tests::test_stdout_write ... ok
[INFO] [stdout] stdout fd = 1
[INFO] [stderr] stderr!
[INFO] [stdout] test tests::test_stdout ... ok
[INFO] [stderr]    Doc-tests libc_print
[INFO] [stdout] test tests::test_stderr_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "e7f88844edeffde38b27709a6f5ec94cd4ca583efbc0ef76635f03d0842c54a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f88844edeffde38b27709a6f5ec94cd4ca583efbc0ef76635f03d0842c54a6", kill_on_drop: false }`
[INFO] [stdout] e7f88844edeffde38b27709a6f5ec94cd4ca583efbc0ef76635f03d0842c54a6