[INFO] cloning repository https://github.com/spebern/rate-delay-simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spebern/rate-delay-simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspebern%2Frate-delay-simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspebern%2Frate-delay-simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be892ecf188f05edc8a315fe5c742dd00af6b4a0
[INFO] checking spebern/rate-delay-simulation against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspebern%2Frate-delay-simulation" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spebern/rate-delay-simulation on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spebern/rate-delay-simulation
[INFO] finished tweaking git repo https://github.com/spebern/rate-delay-simulation
[INFO] tweaked toml for git repo https://github.com/spebern/rate-delay-simulation written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/spebern/rate-delay-simulation 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-trait v0.1.21
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 549a7b367088f8b75f076e3b9864c6e504e317e1e4b52cfd5d5a8ea49daf0f99
[INFO] running `Command { std: "docker" "start" "-a" "549a7b367088f8b75f076e3b9864c6e504e317e1e4b52cfd5d5a8ea49daf0f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "549a7b367088f8b75f076e3b9864c6e504e317e1e4b52cfd5d5a8ea49daf0f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549a7b367088f8b75f076e3b9864c6e504e317e1e4b52cfd5d5a8ea49daf0f99", kill_on_drop: false }`
[INFO] [stdout] 549a7b367088f8b75f076e3b9864c6e504e317e1e4b52cfd5d5a8ea49daf0f99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a47a3ebf9d4499b1c96fc70b189075feffc62eaf2d22bb92ec74cda53b90649
[INFO] running `Command { std: "docker" "start" "-a" "5a47a3ebf9d4499b1c96fc70b189075feffc62eaf2d22bb92ec74cda53b90649", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]     Checking structopt v0.3.5
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[INFO] [stderr]     Checking rate-delay-simulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `chrono` is imported redundantly
[INFO] [stdout]  --> src/base_station.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono;
[INFO] [stdout]   |     ^^^^^^ the item `chrono` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `chrono` is imported redundantly
[INFO] [stdout]  --> src/transmitter.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use chrono;
[INFO] [stdout]   |     ^^^^^^ the item `chrono` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use csv;
[INFO] [stdout]    |     ^^^ the item `csv` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `chrono` is imported redundantly
[INFO] [stdout]  --> src/base_station.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono;
[INFO] [stdout]   |     ^^^^^^ the item `chrono` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `chrono` is imported redundantly
[INFO] [stdout]  --> src/transmitter.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use chrono;
[INFO] [stdout]   |     ^^^^^^ the item `chrono` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use csv;
[INFO] [stdout]    |     ^^^ the item `csv` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NACK` is never constructed
[INFO] [stdout]   --> src/channel.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Response {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 14 |     ACK(u32),
[INFO] [stdout] 15 |     NACK(u32),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Response` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NACK` is never constructed
[INFO] [stdout]   --> src/channel.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Response {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 14 |     ACK(u32),
[INFO] [stdout] 15 |     NACK(u32),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Response` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.18s
[INFO] running `Command { std: "docker" "inspect" "5a47a3ebf9d4499b1c96fc70b189075feffc62eaf2d22bb92ec74cda53b90649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a47a3ebf9d4499b1c96fc70b189075feffc62eaf2d22bb92ec74cda53b90649", kill_on_drop: false }`
[INFO] [stdout] 5a47a3ebf9d4499b1c96fc70b189075feffc62eaf2d22bb92ec74cda53b90649