[INFO] cloning repository https://github.com/ckauhaus/multiping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ckauhaus/multiping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckauhaus%2Fmultiping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckauhaus%2Fmultiping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c1e2212894ccb8d01b0c4a091097240079c5b38
[INFO] checking ckauhaus/multiping against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckauhaus%2Fmultiping" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ckauhaus/multiping on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ckauhaus/multiping
[INFO] finished tweaking git repo https://github.com/ckauhaus/multiping
[INFO] tweaked toml for git repo https://github.com/ckauhaus/multiping written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/ckauhaus/multiping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-ping v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8363b509c325def7b2d0f71239070786c8190060e24a424026dbe0d3b80a1aaa
[INFO] running `Command { std: "docker" "start" "-a" "8363b509c325def7b2d0f71239070786c8190060e24a424026dbe0d3b80a1aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8363b509c325def7b2d0f71239070786c8190060e24a424026dbe0d3b80a1aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8363b509c325def7b2d0f71239070786c8190060e24a424026dbe0d3b80a1aaa", kill_on_drop: false }`
[INFO] [stdout] 8363b509c325def7b2d0f71239070786c8190060e24a424026dbe0d3b80a1aaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1a9dde6ee945444bb2204b4f010d90e3df42205c465ea4ca023ea3911941c22
[INFO] running `Command { std: "docker" "start" "-a" "f1a9dde6ee945444bb2204b4f010d90e3df42205c465ea4ca023ea3911941c22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.1
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking crossbeam-deque v0.6.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking tokio-timer v0.2.8
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-ping v0.1.2
[INFO] [stderr]     Checking multiping v1.1.2-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         links {
[INFO] [stdout] 18 | |             Ping(::tokio_ping::Error, ::tokio_ping::ErrorKind);
[INFO] [stdout] 19 | |         }
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         }
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/main.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             write!(output, "\nwarning: {}", warning).is_ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/main.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             write!(output, "\nwarning: {}", warning).is_ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.13s
[INFO] running `Command { std: "docker" "inspect" "f1a9dde6ee945444bb2204b4f010d90e3df42205c465ea4ca023ea3911941c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1a9dde6ee945444bb2204b4f010d90e3df42205c465ea4ca023ea3911941c22", kill_on_drop: false }`
[INFO] [stdout] f1a9dde6ee945444bb2204b4f010d90e3df42205c465ea4ca023ea3911941c22