[INFO] cloning repository https://github.com/GraDje13/termchatty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GraDje13/termchatty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraDje13%2Ftermchatty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraDje13%2Ftermchatty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1374977b7e9ecb07a8770d44405523e615772869
[INFO] checking GraDje13/termchatty against master#bdcb6a99e853732f8ec050ae4986aa3af51d44c5 for 92191_revert
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGraDje13%2Ftermchatty" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GraDje13/termchatty on toolchain bdcb6a99e853732f8ec050ae4986aa3af51d44c5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GraDje13/termchatty
[INFO] finished tweaking git repo https://github.com/GraDje13/termchatty
[INFO] tweaked toml for git repo https://github.com/GraDje13/termchatty written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/GraDje13/termchatty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 704f2fad2b939544149139d70b20e589f88a43420c1761a596e9e88a3b65e5c5
[INFO] running `Command { std: "docker" "start" "-a" "704f2fad2b939544149139d70b20e589f88a43420c1761a596e9e88a3b65e5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "704f2fad2b939544149139d70b20e589f88a43420c1761a596e9e88a3b65e5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "704f2fad2b939544149139d70b20e589f88a43420c1761a596e9e88a3b65e5c5", kill_on_drop: false }`
[INFO] [stdout] 704f2fad2b939544149139d70b20e589f88a43420c1761a596e9e88a3b65e5c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc23910ae9f64b906977f97960b1e221f524701d817c8a4a77050906ecf4263b
[INFO] running `Command { std: "docker" "start" "-a" "cc23910ae9f64b906977f97960b1e221f524701d817c8a4a77050906ecf4263b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking tui v0.12.0
[INFO] [stderr]     Checking termchatty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/bin/network_testing.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 |     net::{TcpListener, TcpStream},
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.26s
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/bin/network_testing.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 |     net::{TcpListener, TcpStream},
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/network_testing.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut message = String::from("hello");
[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: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/network_testing.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut message = String::from("hello");
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/network_testing.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut message = String::from("prok is cool");
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/network_testing.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut message = String::from("prok is cool");
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/network_testing.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut message = String::from("Assuming the necessary assumptions..");
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/network_testing.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut message = String::from("Assuming the necessary assumptions..");
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[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] running `Command { std: "docker" "inspect" "cc23910ae9f64b906977f97960b1e221f524701d817c8a4a77050906ecf4263b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc23910ae9f64b906977f97960b1e221f524701d817c8a4a77050906ecf4263b", kill_on_drop: false }`
[INFO] [stdout] cc23910ae9f64b906977f97960b1e221f524701d817c8a4a77050906ecf4263b