[INFO] fetching crate tokio-icmp-echo 0.4.1...
[INFO] checking tokio-icmp-echo-0.4.1 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate tokio-icmp-echo 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tokio-icmp-echo 0.4.1 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-icmp-echo 0.4.1
[INFO] finished tweaking crates.io crate tokio-icmp-echo 0.4.1
[INFO] tweaked toml for crates.io crate tokio-icmp-echo 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate tokio-icmp-echo 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.89
[INFO] [stderr]   Downloaded libc v0.2.120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95ff058b28bf0c26939fac701d0666ef19d30732e9af0a952eb1274a2283bbe9
[INFO] running `Command { std: "docker" "start" "-a" "95ff058b28bf0c26939fac701d0666ef19d30732e9af0a952eb1274a2283bbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ff058b28bf0c26939fac701d0666ef19d30732e9af0a952eb1274a2283bbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ff058b28bf0c26939fac701d0666ef19d30732e9af0a952eb1274a2283bbe9", kill_on_drop: false }`
[INFO] [stdout] 95ff058b28bf0c26939fac701d0666ef19d30732e9af0a952eb1274a2283bbe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 843cafcaf31ea8542471a06b259073f88d04c1d313c8cddd9dc16586dcd945df
[INFO] running `Command { std: "docker" "start" "-a" "843cafcaf31ea8542471a06b259073f88d04c1d313c8cddd9dc16586dcd945df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-icmp-echo v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ident` and `seq_cnt` are never read
[INFO] [stdout]   --> src/packet/icmp.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct EchoReply<'a> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |     pub ident: u16,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 64 |     pub seq_cnt: u16,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `seq_cnt` are never read
[INFO] [stdout]   --> src/packet/icmp.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct EchoReply<'a> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |     pub ident: u16,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 64 |     pub seq_cnt: u16,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.08s
[INFO] running `Command { std: "docker" "inspect" "843cafcaf31ea8542471a06b259073f88d04c1d313c8cddd9dc16586dcd945df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "843cafcaf31ea8542471a06b259073f88d04c1d313c8cddd9dc16586dcd945df", kill_on_drop: false }`
[INFO] [stdout] 843cafcaf31ea8542471a06b259073f88d04c1d313c8cddd9dc16586dcd945df