[INFO] fetching crate sysctl 0.4.0...
[INFO] testing sysctl-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sysctl 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sysctl 0.4.0 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 sysctl 0.4.0
[INFO] finished tweaking crates.io crate sysctl 0.4.0
[INFO] tweaked toml for crates.io crate sysctl 0.4.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8e28e26d6efe8c571987a5e4a3efc13460b11ef5dba65d24b5b433046741217
[INFO] running `Command { std: "docker" "start" "-a" "a8e28e26d6efe8c571987a5e4a3efc13460b11ef5dba65d24b5b433046741217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8e28e26d6efe8c571987a5e4a3efc13460b11ef5dba65d24b5b433046741217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e28e26d6efe8c571987a5e4a3efc13460b11ef5dba65d24b5b433046741217", kill_on_drop: false }`
[INFO] [stdout] a8e28e26d6efe8c571987a5e4a3efc13460b11ef5dba65d24b5b433046741217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6f3da5ad74e68c1d5960be56ea6467cf8c431ae2dee3fdfdb9dbb8b3b9496780
[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" "6f3da5ad74e68c1d5960be56ea6467cf8c431ae2dee3fdfdb9dbb8b3b9496780", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysctl v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "6f3da5ad74e68c1d5960be56ea6467cf8c431ae2dee3fdfdb9dbb8b3b9496780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3da5ad74e68c1d5960be56ea6467cf8c431ae2dee3fdfdb9dbb8b3b9496780", kill_on_drop: false }`
[INFO] [stdout] 6f3da5ad74e68c1d5960be56ea6467cf8c431ae2dee3fdfdb9dbb8b3b9496780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3e7df3ffe1ed60fe9e20af8cfa499210dd6c6b2a553f45b17ccb3defefea3c76
[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" "3e7df3ffe1ed60fe9e20af8cfa499210dd6c6b2a553f45b17ccb3defefea3c76", kill_on_drop: false }`
[INFO] [stderr]    Compiling sysctl v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let ctl = try!(sysctl::Ctl::new(ctlname));
[INFO] [stdout]    |               ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let desc = try!(ctl.description());
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let val = try!(ctl.value());
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value_string.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let ctl = try!(sysctl::Ctl::new(ctlname));
[INFO] [stdout]    |               ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value_string.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let description = try!(ctl.description());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/value_string.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let val_string = try!(ctl.value_string());
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "3e7df3ffe1ed60fe9e20af8cfa499210dd6c6b2a553f45b17ccb3defefea3c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7df3ffe1ed60fe9e20af8cfa499210dd6c6b2a553f45b17ccb3defefea3c76", kill_on_drop: false }`
[INFO] [stdout] 3e7df3ffe1ed60fe9e20af8cfa499210dd6c6b2a553f45b17ccb3defefea3c76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] daf84fe5185065be523cfdfa12126253b1f8faafec8614ac22ba17d2e92d0cec
[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" "daf84fe5185065be523cfdfa12126253b1f8faafec8614ac22ba17d2e92d0cec", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value.rs:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let ctl = try!(sysctl::Ctl::new(ctlname));
[INFO] [stderr]    |               ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let desc = try!(ctl.description());
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value.rs:20:15
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let val = try!(ctl.value());
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value_string.rs:18:15
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let ctl = try!(sysctl::Ctl::new(ctlname));
[INFO] [stderr]    |               ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value_string.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let description = try!(ctl.description());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/value_string.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let val_string = try!(ctl.value_string());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sysctl-d15f337039614e45
[INFO] [stdout] running 5 tests
[INFO] [stdout] test sys::ctl::tests::ctl_new ... ok
[INFO] [stdout] test ctl_flags::tests::ctl_flags ... ok
[INFO] [stdout] test ctl_value::tests_linux::ctl_value_string ... ok
[INFO] [stdout] test sys::ctl_iter::tests::ctl_iter_below_compare_outputs ... ok
[INFO] [stdout] test sys::ctl_iter::tests::ctl_iter_iterate_all ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sysctl
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/ctl_type.rs - ctl_type::CtlType (line 9) ... ignored
[INFO] [stdout] test src/ctl_value.rs - ctl_value::CtlValue (line 11) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::description (line 71) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::flags (line 174) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::info (line 190) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::name (line 43) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::set_value (line 135) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::set_value_string (line 155) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::value (line 84) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::value_as (line 98) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::value_string (line 122) ... ignored
[INFO] [stdout] test src/traits.rs - traits::Sysctl::value_type (line 57) ... ignored
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/traits.rs - traits::Sysctl::new (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/traits.rs - traits::Sysctl::new (line 24) ... ok
[INFO] [stdout] test src/linux/ctl_iter.rs - sys::ctl_iter::Ctl (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 12 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "daf84fe5185065be523cfdfa12126253b1f8faafec8614ac22ba17d2e92d0cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf84fe5185065be523cfdfa12126253b1f8faafec8614ac22ba17d2e92d0cec", kill_on_drop: false }`
[INFO] [stdout] daf84fe5185065be523cfdfa12126253b1f8faafec8614ac22ba17d2e92d0cec