[INFO] fetching crate wping 0.3.0...
[INFO] checking wping-0.3.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate wping 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate wping 0.3.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wping 0.3.0
[INFO] finished tweaking crates.io crate wping 0.3.0
[INFO] tweaked toml for crates.io crate wping 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d479a4729592640a8b97e23d09afa80b81dbeddf129bc04fc65cd6924fe7fa4
[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" "6d479a4729592640a8b97e23d09afa80b81dbeddf129bc04fc65cd6924fe7fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d479a4729592640a8b97e23d09afa80b81dbeddf129bc04fc65cd6924fe7fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d479a4729592640a8b97e23d09afa80b81dbeddf129bc04fc65cd6924fe7fa4", kill_on_drop: false }`
[INFO] [stdout] 6d479a4729592640a8b97e23d09afa80b81dbeddf129bc04fc65cd6924fe7fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] abd6be0036ac49a63fadb3f4d2435cc8ad87367a64b0f5897a8364a9e9ffa4b5
[INFO] running `Command { std: "docker" "start" "-a" "abd6be0036ac49a63fadb3f4d2435cc8ad87367a64b0f5897a8364a9e9ffa4b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]     Checking pnet_macros_support v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking syntex_pos v0.42.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking pnet_macros_support v0.26.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking syntex_errors v0.42.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking syntex_syntax v0.42.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking resolve v0.1.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking syntex v0.42.2
[INFO] [stderr]     Checking pnet_macros v0.15.0
[INFO] [stderr]    Compiling pnet v0.16.0
[INFO] [stderr]     Checking wping v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:437:25
[INFO] [stdout]     |
[INFO] [stdout] 437 |             let addrs = try!(resolve_host(&s).map_err(|e| String::from(e.description())));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/columnar.rs:67:50
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn format(&'a self, values : Vec<Option<&Display>>) -> String {
[INFO] [stdout]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/columnar.rs:72:50
[INFO] [stdout]    |
[INFO] [stdout] 72 |                  (col, v) : (&'a Column, Option<&Display>)| {
[INFO] [stdout]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:155:77
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn send_ping (mut tx : TransportSender, dst : Ipv4Addr, len : usize) -> Box<FnMut(u16) -> ()> {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u16) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:404:30
[INFO] [stdout]     |
[INFO] [stdout] 404 | fn do_probe(probe : &mut Box<FnMut(u16) -> ()>, stats: &mut Stats,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u16) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:500:60
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn to_display<T : fmt::Display>(v : Option<&T>) -> Option<&fmt::Display> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:501:22
[INFO] [stdout]     |
[INFO] [stdout] 501 |     v.map (|v| v as &fmt::Display)
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:508:39
[INFO] [stdout]     |
[INFO] [stdout] 508 |     let seq = resp.map(|r| &r.seq as &fmt::Display);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:509:46
[INFO] [stdout]     |
[INFO] [stdout] 509 |     let nbytes = resp.map (|r| &r.nbytes as &fmt::Display);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:510:39
[INFO] [stdout]     |
[INFO] [stdout] 510 |     let ttl = resp.map(|r| &r.ttl as &fmt::Display);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:437:25
[INFO] [stdout]     |
[INFO] [stdout] 437 |             let addrs = try!(resolve_host(&s).map_err(|e| String::from(e.description())));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/columnar.rs:67:50
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn format(&'a self, values : Vec<Option<&Display>>) -> String {
[INFO] [stdout]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/columnar.rs:72:50
[INFO] [stdout]    |
[INFO] [stdout] 72 |                  (col, v) : (&'a Column, Option<&Display>)| {
[INFO] [stdout]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:155:77
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn send_ping (mut tx : TransportSender, dst : Ipv4Addr, len : usize) -> Box<FnMut(u16) -> ()> {
[INFO] [stdout]     |                                                                             ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u16) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:404:30
[INFO] [stdout]     |
[INFO] [stdout] 404 | fn do_probe(probe : &mut Box<FnMut(u16) -> ()>, stats: &mut Stats,
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(u16) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:500:60
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn to_display<T : fmt::Display>(v : Option<&T>) -> Option<&fmt::Display> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:501:22
[INFO] [stdout]     |
[INFO] [stdout] 501 |     v.map (|v| v as &fmt::Display)
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:508:39
[INFO] [stdout]     |
[INFO] [stdout] 508 |     let seq = resp.map(|r| &r.seq as &fmt::Display);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:509:46
[INFO] [stdout]     |
[INFO] [stdout] 509 |     let nbytes = resp.map (|r| &r.nbytes as &fmt::Display);
[INFO] [stdout]     |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:510:39
[INFO] [stdout]     |
[INFO] [stdout] 510 |     let ttl = resp.map(|r| &r.ttl as &fmt::Display);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:437:74
[INFO] [stdout]     |
[INFO] [stdout] 437 |             let addrs = try!(resolve_host(&s).map_err(|e| String::from(e.description())));
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let mut ipv4_payload = ipv4.payload_mut();
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/main.rs:339:44
[INFO] [stdout]     |
[INFO] [stdout] 339 |         for (i, unit) in ["s", "ms", "us"].into_iter().enumerate() {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` 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]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:437:74
[INFO] [stdout]     |
[INFO] [stdout] 437 |             let addrs = try!(resolve_host(&s).map_err(|e| String::from(e.description())));
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let mut ipv4_payload = ipv4.payload_mut();
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/main.rs:339:44
[INFO] [stdout]     |
[INFO] [stdout] 339 |         for (i, unit) in ["s", "ms", "us"].into_iter().enumerate() {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` 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]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "abd6be0036ac49a63fadb3f4d2435cc8ad87367a64b0f5897a8364a9e9ffa4b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd6be0036ac49a63fadb3f4d2435cc8ad87367a64b0f5897a8364a9e9ffa4b5", kill_on_drop: false }`
[INFO] [stdout] abd6be0036ac49a63fadb3f4d2435cc8ad87367a64b0f5897a8364a9e9ffa4b5
