[INFO] cloning repository https://github.com/bryanburgers/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bryanburgers/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0945b912614b500a6fcb640f9ee8dc31cc6fe5c0
[INFO] checking bryanburgers/advent-of-code-2019 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryanburgers%2Fadvent-of-code-2019" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bryanburgers/advent-of-code-2019 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bryanburgers/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/bryanburgers/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/bryanburgers/advent-of-code-2019 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bryanburgers/advent-of-code-2019 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff2560cacf63878c3a7be27d68e3beada43636852b981c034e78c0ca3b32d1ab
[INFO] running `Command { std: "docker" "start" "-a" "ff2560cacf63878c3a7be27d68e3beada43636852b981c034e78c0ca3b32d1ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff2560cacf63878c3a7be27d68e3beada43636852b981c034e78c0ca3b32d1ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2560cacf63878c3a7be27d68e3beada43636852b981c034e78c0ca3b32d1ab", kill_on_drop: false }`
[INFO] [stdout] ff2560cacf63878c3a7be27d68e3beada43636852b981c034e78c0ca3b32d1ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da802660ca28976180b1888e6519f7bf146340014dc77601d83c13af6e2407e4
[INFO] running `Command { std: "docker" "start" "-a" "da802660ca28976180b1888e6519f7bf146340014dc77601d83c13af6e2407e4", kill_on_drop: false }`
[INFO] [stderr]     Checking intcode v0.1.0 (/opt/rustwide/workdir/intcode)
[INFO] [stderr]     Checking day-06 v0.1.0 (/opt/rustwide/workdir/day-06)
[INFO] [stderr]     Checking day-08 v0.1.0 (/opt/rustwide/workdir/day-08)
[INFO] [stderr]     Checking day-03 v0.1.0 (/opt/rustwide/workdir/day-03)
[INFO] [stderr]     Checking day-04 v0.1.0 (/opt/rustwide/workdir/day-04)
[INFO] [stderr]     Checking day-01 v0.1.0 (/opt/rustwide/workdir/day-01)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> day-01/src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl SpaceModule {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 18 |     fn new(mass: usize) -> SpaceModule {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> day-08/src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Layer {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 46 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 47 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> day-08/src/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Layer {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 46 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 47 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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] [stdout] warning: unused variable: `instruction_num`
[INFO] [stdout]    --> intcode/src/lib.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let instruction_num = instruction;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction_num`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `encode`, `encode_input_mode`, and `encode_output_mode` are never used
[INFO] [stdout]    --> intcode/src/lib.rs:94:12
[INFO] [stdout]     |
[INFO] [stdout] 53  | impl Instruction {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94  |     pub fn encode(&self) -> isize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     fn encode_input_mode(mode: &InputParameter, position: u32) -> isize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn encode_output_mode(mode: &OutputParameter, position: u32) -> isize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day-05 v0.1.0 (/opt/rustwide/workdir/day-05)
[INFO] [stderr]     Checking day-09 v0.1.0 (/opt/rustwide/workdir/day-09)
[INFO] [stderr]     Checking day-07 v0.1.0 (/opt/rustwide/workdir/day-07)
[INFO] [stderr]     Checking day-02 v0.1.0 (/opt/rustwide/workdir/day-02)
[INFO] [stdout] warning: unused variable: `instruction_num`
[INFO] [stdout]    --> intcode/src/lib.rs:276:13
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let instruction_num = instruction;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction_num`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_quine` is never used
[INFO] [stdout]    --> intcode/src/lib.rs:777:8
[INFO] [stdout]     |
[INFO] [stdout] 777 |     fn test_quine() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_a` is never read
[INFO] [stdout]   --> day-07/src/main.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut output_a = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_b` is never read
[INFO] [stdout]   --> day-07/src/main.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut output_b = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_c` is never read
[INFO] [stdout]   --> day-07/src/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut output_c = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_d` is never read
[INFO] [stdout]   --> day-07/src/main.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut output_d = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_a` is never read
[INFO] [stdout]   --> day-07/src/main.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut output_a = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_b` is never read
[INFO] [stdout]   --> day-07/src/main.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut output_b = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_c` is never read
[INFO] [stdout]   --> day-07/src/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut output_c = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `output_d` is never read
[INFO] [stdout]   --> day-07/src/main.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut output_d = 0;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "da802660ca28976180b1888e6519f7bf146340014dc77601d83c13af6e2407e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da802660ca28976180b1888e6519f7bf146340014dc77601d83c13af6e2407e4", kill_on_drop: false }`
[INFO] [stdout] da802660ca28976180b1888e6519f7bf146340014dc77601d83c13af6e2407e4