[INFO] cloning repository https://github.com/volyx/advent2020-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volyx/advent2020-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolyx%2Fadvent2020-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolyx%2Fadvent2020-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2d22a37e8967a675e57273445a8e7c702e15f6d
[INFO] checking volyx/advent2020-rust against master#9a42c6509d399fd205917ebce474b31315c5d3e9 for pr-97427
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolyx%2Fadvent2020-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/volyx/advent2020-rust on toolchain 9a42c6509d399fd205917ebce474b31315c5d3e9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/volyx/advent2020-rust
[INFO] finished tweaking git repo https://github.com/volyx/advent2020-rust
[INFO] tweaked toml for git repo https://github.com/volyx/advent2020-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/volyx/advent2020-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4375cfb48052ee338b3248dc5d0688b0a9923e084d401c2fbe9dec87553c0be
[INFO] running `Command { std: "docker" "start" "-a" "e4375cfb48052ee338b3248dc5d0688b0a9923e084d401c2fbe9dec87553c0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4375cfb48052ee338b3248dc5d0688b0a9923e084d401c2fbe9dec87553c0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4375cfb48052ee338b3248dc5d0688b0a9923e084d401c2fbe9dec87553c0be", kill_on_drop: false }`
[INFO] [stdout] e4375cfb48052ee338b3248dc5d0688b0a9923e084d401c2fbe9dec87553c0be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ff6280a0f1cf9cd754408adddd47477c4189b3ebf6e460f241e302e5e96d1be
[INFO] running `Command { std: "docker" "start" "-a" "4ff6280a0f1cf9cd754408adddd47477c4189b3ebf6e460f241e302e5e96d1be", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `row_mid` is never read
[INFO] [stdout]   --> src/advent5/mod.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut row_mid = 0;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `row_mid` is never read
[INFO] [stdout]   --> src/advent5/mod.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut row_mid = 0;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col_mid` is never read
[INFO] [stdout]   --> src/advent5/mod.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut col_mid = 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 `program` is never read
[INFO] [stdout]   --> src/advent8/mod.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut program: Vec<String> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_index` is never read
[INFO] [stdout]   --> src/advent9/mod.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut current_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent1/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent2/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent3/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent4/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent5/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent6/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col_mid` is never read
[INFO] [stdout]   --> src/advent5/mod.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut col_mid = 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 `program` is never read
[INFO] [stdout]   --> src/advent8/mod.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut program: Vec<String> = Vec::new();
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_index` is never read
[INFO] [stdout]   --> src/advent9/mod.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut current_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent1/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent7/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent2/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/advent7/mod.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part_2(bags: Vec<Bag>) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent3/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent4/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `topological_find`
[INFO] [stdout]   --> src/advent7/mod.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn topological_find(bags: &Vec<Bag>, current_bag: &str, count: & mut Cell<i32>, level: usize, multiplier: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent5/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]   --> src/advent7/mod.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn part_1(bags: Vec<Bag>) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent6/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_bag`
[INFO] [stdout]   --> src/advent7/mod.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn find_bag(bag: &Bag, bags_map: &Vec<Bag>, name: &str, level: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent7/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_2`
[INFO] [stdout]   --> src/advent7/mod.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn part_2(bags: Vec<Bag>) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `topological_find`
[INFO] [stdout]   --> src/advent7/mod.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn topological_find(bags: &Vec<Bag>, current_bag: &str, count: & mut Cell<i32>, level: usize, multiplier: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children`
[INFO] [stdout]    --> src/advent7/mod.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 |     children: Vec<Bag>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Bag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/advent7/mod.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 | #[derive(Debug, Clone)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `part_1`
[INFO] [stdout]   --> src/advent7/mod.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn part_1(bags: Vec<Bag>) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent8/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_bag`
[INFO] [stdout]   --> src/advent7/mod.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn find_bag(bag: &Bag, bags_map: &Vec<Bag>, name: &str, level: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_program`
[INFO] [stdout]   --> src/advent8/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn check_program(lines: Vec<String>) -> (i32, bool) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `children`
[INFO] [stdout]    --> src/advent7/mod.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 |     children: Vec<Bag>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `Bag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/advent7/mod.rs:125:10
[INFO] [stdout]     |
[INFO] [stdout] 125 | #[derive(Debug, Clone)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solution`
[INFO] [stdout]  --> src/advent8/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn solution() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_program`
[INFO] [stdout]   --> src/advent8/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn check_program(lines: Vec<String>) -> (i32, bool) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.66s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "4ff6280a0f1cf9cd754408adddd47477c4189b3ebf6e460f241e302e5e96d1be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff6280a0f1cf9cd754408adddd47477c4189b3ebf6e460f241e302e5e96d1be", kill_on_drop: false }`
[INFO] [stdout] 4ff6280a0f1cf9cd754408adddd47477c4189b3ebf6e460f241e302e5e96d1be