[INFO] cloning repository https://github.com/3akur6/braille-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/3akur6/braille-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3akur6%2Fbraille-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3akur6%2Fbraille-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5462389164ab1475a1c2781472d4a99770fa9fc0
[INFO] checking 3akur6/braille-rs against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3akur6%2Fbraille-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/3akur6/braille-rs
[INFO] finished tweaking git repo https://github.com/3akur6/braille-rs
[INFO] tweaked toml for git repo https://github.com/3akur6/braille-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/3akur6/braille-rs on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/3akur6/braille-rs 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v1.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44950bb53d6c37a544a2bb3d08c0759950c3b814101eec08601c809cc288389e
[INFO] running `Command { std: "docker" "start" "-a" "44950bb53d6c37a544a2bb3d08c0759950c3b814101eec08601c809cc288389e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44950bb53d6c37a544a2bb3d08c0759950c3b814101eec08601c809cc288389e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44950bb53d6c37a544a2bb3d08c0759950c3b814101eec08601c809cc288389e", kill_on_drop: false }`
[INFO] [stdout] 44950bb53d6c37a544a2bb3d08c0759950c3b814101eec08601c809cc288389e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fc55c883af45693f09a0348304279589aa3e36d7f6e4ca768fb38bb89b924d7
[INFO] running `Command { std: "docker" "start" "-a" "0fc55c883af45693f09a0348304279589aa3e36d7f6e4ca768fb38bb89b924d7", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking braille-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `from_vec` and `to_vec` are never used
[INFO] [stdout]   --> src/cluster.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait FrameLike {
[INFO] [stdout]    |           --------- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout]  8 |     fn from_vec(vec: Vec<u8>) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn to_vec(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_vec` is never used
[INFO] [stdout]   --> src/cluster.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Frame {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn to_vec(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_vec` is never used
[INFO] [stdout]    --> src/cluster.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout]  98 | pub trait WordLike {
[INFO] [stdout]     |           -------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn from_vec(vec: Vec<Byte>) -> Self;
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gadget` and `msg` are never read
[INFO] [stdout]   --> src/gadget.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 16 |     gadget: Gadget,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_write_like` is never used
[INFO] [stdout]    --> src/gadget.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Gadget {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn is_write_like(&self, braille: &mut Braille) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `craft_write_payload` is never used
[INFO] [stdout]    --> src/payload.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Payload {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn craft_write_payload(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_vec` and `to_vec` are never used
[INFO] [stdout]   --> src/cluster.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub trait FrameLike {
[INFO] [stdout]    |           --------- associated items in this trait
[INFO] [stdout] ...
[INFO] [stdout]  8 |     fn from_vec(vec: Vec<u8>) -> Self
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn to_vec(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_vec` is never used
[INFO] [stdout]   --> src/cluster.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Frame {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn to_vec(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gadget` and `msg` are never read
[INFO] [stdout]   --> src/gadget.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 16 |     gadget: Gadget,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_write_like` is never used
[INFO] [stdout]    --> src/gadget.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Gadget {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn is_write_like(&self, braille: &mut Braille) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `craft_write_payload` is never used
[INFO] [stdout]    --> src/payload.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Payload {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn craft_write_payload(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "0fc55c883af45693f09a0348304279589aa3e36d7f6e4ca768fb38bb89b924d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc55c883af45693f09a0348304279589aa3e36d7f6e4ca768fb38bb89b924d7", kill_on_drop: false }`
[INFO] [stdout] 0fc55c883af45693f09a0348304279589aa3e36d7f6e4ca768fb38bb89b924d7
