[INFO] updating cached repository https://github.com/raptorswing/tftprust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d66d80b690c561997faea301b345f1f11ff21a5
[INFO] checking raptorswing/tftprust against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraptorswing%2Ftftprust" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raptorswing/tftprust on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/raptorswing/tftprust
[INFO] finished tweaking git repo https://github.com/raptorswing/tftprust
[INFO] tweaked toml for git repo https://github.com/raptorswing/tftprust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/raptorswing/tftprust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1dd3dd55e6df74ba7260b295db9e3a2f431983ce48418596a4a970291654eba7
[INFO] running `"docker" "start" "-a" "1dd3dd55e6df74ba7260b295db9e3a2f431983ce48418596a4a970291654eba7"`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking ascii v0.9.2
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tftprust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/main.rs:284:51
[INFO] [stderr]     |
[INFO] [stderr] 284 |                 TFTPPacket::ReadRequest(filename, mode) => {
[INFO] [stderr]     |                                                   ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WriteRequest`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     WriteRequest(string::String, TFTPMode),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Data`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Data(u16, Vec<u8>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Error(u16, string::String)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/main.rs:284:51
[INFO] [stderr]     |
[INFO] [stderr] 284 |                 TFTPPacket::ReadRequest(filename, mode) => {
[INFO] [stderr]     |                                                   ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WriteRequest`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     WriteRequest(string::String, TFTPMode),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Data`
[INFO] [stderr]   --> src/main.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Data(u16, Vec<u8>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     Error(u16, string::String)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.55s
[INFO] running `"docker" "inspect" "1dd3dd55e6df74ba7260b295db9e3a2f431983ce48418596a4a970291654eba7"`
[INFO] running `"docker" "rm" "-f" "1dd3dd55e6df74ba7260b295db9e3a2f431983ce48418596a4a970291654eba7"`
[INFO] [stdout] 1dd3dd55e6df74ba7260b295db9e3a2f431983ce48418596a4a970291654eba7