[INFO] cloning repository https://github.com/0xcaff/icmp-measure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xcaff/icmp-measure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcaff%2Ficmp-measure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcaff%2Ficmp-measure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ea6ec94e94412f883f67cbd54e57505db7e183b
[INFO] checking 0xcaff/icmp-measure against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xcaff%2Ficmp-measure" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xcaff/icmp-measure on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xcaff/icmp-measure
[INFO] finished tweaking git repo https://github.com/0xcaff/icmp-measure
[INFO] tweaked toml for git repo https://github.com/0xcaff/icmp-measure written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/0xcaff/icmp-measure already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio v0.2.19
[INFO] [stderr]   Downloaded internet-checksum v0.2.0
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb104386b3062276eb167d887224040067737930bbc2d1355a293c30279e9658
[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" "cb104386b3062276eb167d887224040067737930bbc2d1355a293c30279e9658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb104386b3062276eb167d887224040067737930bbc2d1355a293c30279e9658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb104386b3062276eb167d887224040067737930bbc2d1355a293c30279e9658", kill_on_drop: false }`
[INFO] [stdout] cb104386b3062276eb167d887224040067737930bbc2d1355a293c30279e9658
[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=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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 951af5e4a5d3738c25d67e14d8ea35fce4f8b1f15451cb74277371bc9a9a0197
[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" "951af5e4a5d3738c25d67e14d8ea35fce4f8b1f15451cb74277371bc9a9a0197", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking internet-checksum v0.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking icmp-encoding v0.1.0 (/opt/rustwide/workdir/icmp-encoding)
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.19
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-icmp v0.1.0 (/opt/rustwide/workdir/tokio-icmp)
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> tokio-icmp/tests/ping_pong.rs:86:30
[INFO] [stdout]    |
[INFO] [stdout] 86 |             let (bytes_read, from) = match timeout_result {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip_header`
[INFO] [stdout]   --> tokio-icmp/tests/ping_pong.rs:91:18
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let (ip_header, body) = IpV4PacketHeader::decode(&recv_buffer[..bytes_read]).unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ip_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `icmp_header`
[INFO] [stdout]   --> tokio-icmp/tests/ping_pong.rs:92:18
[INFO] [stdout]    |
[INFO] [stdout] 92 |             let (icmp_header, data) = IcmpV4Header::decode(body).unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_icmp_header`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> tokio-icmp/tests/ping_pong.rs:92:31
[INFO] [stdout]    |
[INFO] [stdout] 92 |             let (icmp_header, data) = IcmpV4Header::decode(body).unwrap();
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.05s
[INFO] running `Command { std: "docker" "inspect" "951af5e4a5d3738c25d67e14d8ea35fce4f8b1f15451cb74277371bc9a9a0197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "951af5e4a5d3738c25d67e14d8ea35fce4f8b1f15451cb74277371bc9a9a0197", kill_on_drop: false }`
[INFO] [stdout] 951af5e4a5d3738c25d67e14d8ea35fce4f8b1f15451cb74277371bc9a9a0197