[INFO] fetching crate libmount-sys 0.1.0...
[INFO] testing libmount-sys-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libmount-sys 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libmount-sys 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libmount-sys 0.1.0
[INFO] finished tweaking crates.io crate libmount-sys 0.1.0
[INFO] tweaked toml for crates.io crate libmount-sys 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea5b20f72c89a8a03ccb7fde42e4c9a51ba092447890855eec5bfb393a8a6247
[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" "ea5b20f72c89a8a03ccb7fde42e4c9a51ba092447890855eec5bfb393a8a6247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea5b20f72c89a8a03ccb7fde42e4c9a51ba092447890855eec5bfb393a8a6247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea5b20f72c89a8a03ccb7fde42e4c9a51ba092447890855eec5bfb393a8a6247", kill_on_drop: false }`
[INFO] [stdout] ea5b20f72c89a8a03ccb7fde42e4c9a51ba092447890855eec5bfb393a8a6247
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fe8b191d0346b4b7c86bdecdbd4e3341682004dcda44fd7e84377ec17e101dd
[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" "5fe8b191d0346b4b7c86bdecdbd4e3341682004dcda44fd7e84377ec17e101dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling libmount-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cdir`
[INFO] [stdout]  --> build.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let cdir = std::env::current_dir().unwrap();
[INFO] [stdout]   |       ^^^^ help: if this is intentional, prefix it with an underscore: `_cdir`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.61s
[INFO] running `Command { std: "docker" "inspect" "5fe8b191d0346b4b7c86bdecdbd4e3341682004dcda44fd7e84377ec17e101dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe8b191d0346b4b7c86bdecdbd4e3341682004dcda44fd7e84377ec17e101dd", kill_on_drop: false }`
[INFO] [stdout] 5fe8b191d0346b4b7c86bdecdbd4e3341682004dcda44fd7e84377ec17e101dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba8dcc38c8b2db32b3d22e114c68ac4ef8a86e86e8312097526fe08f82c4ed98
[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" "ba8dcc38c8b2db32b3d22e114c68ac4ef8a86e86e8312097526fe08f82c4ed98", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmount-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cdir`
[INFO] [stdout]  --> build.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |   let cdir = std::env::current_dir().unwrap();
[INFO] [stdout]   |       ^^^^ help: if this is intentional, prefix it with an underscore: `_cdir`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "ba8dcc38c8b2db32b3d22e114c68ac4ef8a86e86e8312097526fe08f82c4ed98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8dcc38c8b2db32b3d22e114c68ac4ef8a86e86e8312097526fe08f82c4ed98", kill_on_drop: false }`
[INFO] [stdout] ba8dcc38c8b2db32b3d22e114c68ac4ef8a86e86e8312097526fe08f82c4ed98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] add1ec4aea467b19d2757edf427f51c004bc5405ca68462fce876cda617e3e87
[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" "add1ec4aea467b19d2757edf427f51c004bc5405ca68462fce876cda617e3e87", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stdout] running 34 tests
[INFO] [stderr]  --> build.rs:1:5
[INFO] [stdout] test bindgen_test_layout__G_fpos64_t ... ok
[INFO] [stderr]   |
[INFO] [stdout] test bindgen_test_layout__G_fpos_t ... ok
[INFO] [stderr] 1 | use std::io::Write;
[INFO] [stdout] test bindgen_test_layout__IO_FILE ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] test bindgen_test_layout___pthread_internal_slist ... ok
[INFO] [stderr]   |
[INFO] [stdout] test bindgen_test_layout___pthread_mutex_s ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test bindgen_test_layout___sigset_t ... ok
[INFO] [stderr] 
[INFO] [stdout] test bindgen_test_layout___va_list_tag ... ok
[INFO] [stderr] warning: unused variable: `cdir`
[INFO] [stdout] test bindgen_test_layout_fd_set ... ok
[INFO] [stderr]  --> build.rs:7:7
[INFO] [stdout] test bindgen_test_layout___pthread_internal_list ... ok
[INFO] [stderr]   |
[INFO] [stdout] test bindgen_test_layout_libmnt_optmap ... ok
[INFO] [stderr] 7 |   let cdir = std::env::current_dir().unwrap();
[INFO] [stdout] test bindgen_test_layout___pthread_cond_s__bindgen_ty_2__bindgen_ty_1 ... ok
[INFO] [stderr]   |       ^^^^ help: if this is intentional, prefix it with an underscore: `_cdir`
[INFO] [stdout] test bindgen_test_layout___pthread_cond_s ... ok
[INFO] [stderr]   |
[INFO] [stdout] test bindgen_test_layout___pthread_cond_s__bindgen_ty_1 ... ok
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] test bindgen_test_layout___mbstate_t__bindgen_ty_1 ... ok
[INFO] [stderr] 
[INFO] [stdout] test bindgen_test_layout_mntent ... ok
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] test bindgen_test_layout_pthread_attr_t ... ok
[INFO] [stderr] 
[INFO] [stdout] test bindgen_test_layout_pthread_barrierattr_t ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] test bindgen_test_layout_pthread_barrier_t ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libmount_sys-acd36d1aeae31ead
[INFO] [stdout] test bindgen_test_layout_pthread_cond_t ... ok
[INFO] [stdout] test bindgen_test_layout_pthread_condattr_t ... ok
[INFO] [stdout] test bindgen_test_layout_pthread_mutex_t ... ok
[INFO] [stdout] test bindgen_test_layout_pthread_mutexattr_t ... ok
[INFO] [stdout] test bindgen_test_layout_termio ... ok
[INFO] [stdout] test bindgen_test_layout_timespec ... ok
[INFO] [stdout] test bindgen_test_layout_timeval ... ok
[INFO] [stdout] test bindgen_test_layout_winsize ... ok
[INFO] [stdout] test test_mnt_new_context ... ok
[INFO] [stdout] test bindgen_test_layout___fsid_t ... ok
[INFO] [stdout] test bindgen_test_layout___mbstate_t ... ok
[INFO] [stdout] test bindgen_test_layout_pthread_rwlock_t ... ok
[INFO] [stdout] test bindgen_test_layout_pthread_rwlockattr_t ... ok
[INFO] [stdout] test bindgen_test_layout___pthread_rwlock_arch_t ... ok
[INFO] [stdout] test bindgen_test_layout___pthread_cond_s__bindgen_ty_2 ... ok
[INFO] [stdout] test bindgen_test_layout___pthread_cond_s__bindgen_ty_1__bindgen_ty_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libmount-sys
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "add1ec4aea467b19d2757edf427f51c004bc5405ca68462fce876cda617e3e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add1ec4aea467b19d2757edf427f51c004bc5405ca68462fce876cda617e3e87", kill_on_drop: false }`
[INFO] [stdout] add1ec4aea467b19d2757edf427f51c004bc5405ca68462fce876cda617e3e87