[INFO] cloning repository https://github.com/chakflying/CS3700-Project3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chakflying/CS3700-Project3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchakflying%2FCS3700-Project3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchakflying%2FCS3700-Project3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7dd15c8ebc6dcd4c4e787df623d530e6dcf1915f
[INFO] checking chakflying/CS3700-Project3 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchakflying%2FCS3700-Project3" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chakflying/CS3700-Project3 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chakflying/CS3700-Project3
[INFO] finished tweaking git repo https://github.com/chakflying/CS3700-Project3
[INFO] tweaked toml for git repo https://github.com/chakflying/CS3700-Project3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/chakflying/CS3700-Project3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cute v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.64
[INFO] [stderr]   Downloaded bincode v1.2.0
[INFO] [stderr]   Downloaded serde_with_macros v1.0.1
[INFO] [stderr]   Downloaded serde_with v1.3.1
[INFO] [stderr]   Downloaded bitflags_serde_shim v0.2.1
[INFO] [stderr]   Downloaded integer-encoding v1.0.7
[INFO] [stderr]   Downloaded serde_bytes v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", 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] ef49f81016f7dfbfb52fd6914f7f4e75aa44b5873a6c7724cda99853984c2fda
[INFO] running `Command { std: "docker" "start" "-a" "ef49f81016f7dfbfb52fd6914f7f4e75aa44b5873a6c7724cda99853984c2fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef49f81016f7dfbfb52fd6914f7f4e75aa44b5873a6c7724cda99853984c2fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef49f81016f7dfbfb52fd6914f7f4e75aa44b5873a6c7724cda99853984c2fda", kill_on_drop: false }`
[INFO] [stdout] ef49f81016f7dfbfb52fd6914f7f4e75aa44b5873a6c7724cda99853984c2fda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b08030c74f68ec05239ff171b9245e7a9df602f60d9f605b761b2a41fcd9dfe7
[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" "b08030c74f68ec05239ff171b9245e7a9df602f60d9f605b761b2a41fcd9dfe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking integer-encoding v1.0.7
[INFO] [stderr]     Checking cute v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling serde_with_macros v1.0.1
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking serde_with v1.3.1
[INFO] [stderr]     Checking serde_bytes v0.11.2
[INFO] [stderr]     Checking bitflags_serde_shim v0.2.1
[INFO] [stderr]     Checking PROJECT3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/protocol.rs:255:38
[INFO] [stdout]     |
[INFO] [stdout] 255 |             acks.extend(c![flip, for x in 0..*range]);
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/protocol.rs:255:38
[INFO] [stdout]     |
[INFO] [stdout] 255 |             acks.extend(c![flip, for x in 0..*range]);
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `PROJECT3` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `project3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `PROJECT3` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `project3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> src/bin/3700recv.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/bin/3700recv.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str`
[INFO] [stdout]  --> src/bin/3700recv.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{str, cmp};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `while` condition
[INFO] [stdout]   --> src/bin/3700recv.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |         while {state.receive_packet()} {}
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> src/bin/3700recv.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/bin/3700recv.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `str`
[INFO] [stdout]  --> src/bin/3700recv.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{str, cmp};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `while` condition
[INFO] [stdout]   --> src/bin/3700recv.rs:96:15
[INFO] [stdout]    |
[INFO] [stdout] 96 |         while {state.receive_packet()} {}
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `while` condition
[INFO] [stdout]    --> src/bin/3700send.rs:136:15
[INFO] [stdout]     |
[INFO] [stdout] 136 |         while {state.receive_packet()} {}
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `while` condition
[INFO] [stdout]    --> src/bin/3700send.rs:136:15
[INFO] [stdout]     |
[INFO] [stdout] 136 |         while {state.receive_packet()} {}
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[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 [unoptimized + debuginfo] target(s) in 35.24s
[INFO] running `Command { std: "docker" "inspect" "b08030c74f68ec05239ff171b9245e7a9df602f60d9f605b761b2a41fcd9dfe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08030c74f68ec05239ff171b9245e7a9df602f60d9f605b761b2a41fcd9dfe7", kill_on_drop: false }`
[INFO] [stdout] b08030c74f68ec05239ff171b9245e7a9df602f60d9f605b761b2a41fcd9dfe7