[INFO] cloning repository https://github.com/heartyhardy/aoc2015
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heartyhardy/aoc2015" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheartyhardy%2Faoc2015", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheartyhardy%2Faoc2015'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 177e3baa8a42188a7712c0a1446d7a5c0611711d
[INFO] checking heartyhardy/aoc2015 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheartyhardy%2Faoc2015" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heartyhardy/aoc2015 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heartyhardy/aoc2015
[INFO] finished tweaking git repo https://github.com/heartyhardy/aoc2015
[INFO] tweaked toml for git repo https://github.com/heartyhardy/aoc2015 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/heartyhardy/aoc2015 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v1.9.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.13
[INFO] [stderr]   Downloaded regex v1.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45bcc29f7205bc330c6f91c3ff62c5c5bbfc695b38a0ed2dc4825399a87db517
[INFO] running `Command { std: "docker" "start" "-a" "45bcc29f7205bc330c6f91c3ff62c5c5bbfc695b38a0ed2dc4825399a87db517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45bcc29f7205bc330c6f91c3ff62c5c5bbfc695b38a0ed2dc4825399a87db517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45bcc29f7205bc330c6f91c3ff62c5c5bbfc695b38a0ed2dc4825399a87db517", kill_on_drop: false }`
[INFO] [stdout] 45bcc29f7205bc330c6f91c3ff62c5c5bbfc695b38a0ed2dc4825399a87db517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07ef8fa626612872a16ec06aa61d86763c98f2c1e7888d307252e94257e15cc5
[INFO] running `Command { std: "docker" "start" "-a" "07ef8fa626612872a16ec06aa61d86763c98f2c1e7888d307252e94257e15cc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking aoc2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `md5` is imported redundantly
[INFO] [stdout]  --> src/day_04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use md5;
[INFO] [stdout]   |     ^^^ the item `md5` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/day_12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `md5` is imported redundantly
[INFO] [stdout]  --> src/day_04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use md5;
[INFO] [stdout]   |     ^^^ the item `md5` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/day_12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/day_07.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (k,v) in cns.values().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/day_07.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (k,v) in cns.values().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..MATRIX_SIZE{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `l` is never read
[INFO] [stdout]   --> src/day_13.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[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 `r` is never read
[INFO] [stdout]   --> src/day_13.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..MATRIX_SIZE{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `l` is never read
[INFO] [stdout]   --> src/day_13.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[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 `r` is never read
[INFO] [stdout]   --> src/day_13.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn gifts_away_unlimited(gph:i64){
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn gifts_away_limited(gph:i64){
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn gifts_away_unlimited(gph:i64){
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn gifts_away_limited(gph:i64){
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `let_it_race_dep` is never used
[INFO] [stdout]   --> src/day_14.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn let_it_race_dep(racers:Vec<Raindeer>,dt:i32)->(String, i32){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/day_15.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Ingredient<'a>{
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 7 |     name:& 'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ingredient` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/day_16.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AuntSue<'a>{
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     id:i32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AuntSue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Item<'a> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 27 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Item` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct GameObject<'a> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 36 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GameObject` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/day_14.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |             winner = String::from(racers[i].name.clone());
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `let_it_race_dep` is never used
[INFO] [stdout]   --> src/day_14.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn let_it_race_dep(racers:Vec<Raindeer>,dt:i32)->(String, i32){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/day_15.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Ingredient<'a>{
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 7 |     name:& 'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ingredient` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/day_16.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AuntSue<'a>{
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     id:i32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AuntSue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Item<'a> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 27 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Item` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct GameObject<'a> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 36 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GameObject` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/day_14.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |             winner = String::from(racers[i].name.clone());
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.96s
[INFO] running `Command { std: "docker" "inspect" "07ef8fa626612872a16ec06aa61d86763c98f2c1e7888d307252e94257e15cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ef8fa626612872a16ec06aa61d86763c98f2c1e7888d307252e94257e15cc5", kill_on_drop: false }`
[INFO] [stdout] 07ef8fa626612872a16ec06aa61d86763c98f2c1e7888d307252e94257e15cc5
[INFO] checking heartyhardy/aoc2015 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheartyhardy%2Faoc2015" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heartyhardy/aoc2015 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heartyhardy/aoc2015
[INFO] finished tweaking git repo https://github.com/heartyhardy/aoc2015
[INFO] tweaked toml for git repo https://github.com/heartyhardy/aoc2015 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/heartyhardy/aoc2015 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfda976c79f2fbe338b27cd3c6c02f9c152d0513bae4cd65d843ec809b1e6f04
[INFO] running `Command { std: "docker" "start" "-a" "dfda976c79f2fbe338b27cd3c6c02f9c152d0513bae4cd65d843ec809b1e6f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfda976c79f2fbe338b27cd3c6c02f9c152d0513bae4cd65d843ec809b1e6f04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfda976c79f2fbe338b27cd3c6c02f9c152d0513bae4cd65d843ec809b1e6f04", kill_on_drop: false }`
[INFO] [stdout] dfda976c79f2fbe338b27cd3c6c02f9c152d0513bae4cd65d843ec809b1e6f04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75202ad9967a1aafeb376a8ebd8b19fde41eb338b2354054d910549304f994fb
[INFO] running `Command { std: "docker" "start" "-a" "75202ad9967a1aafeb376a8ebd8b19fde41eb338b2354054d910549304f994fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking aoc2015 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `md5` is imported redundantly
[INFO] [stdout]  --> src/day_04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use md5;
[INFO] [stdout]   |     ^^^ the item `md5` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/day_12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `md5` is imported redundantly
[INFO] [stdout]  --> src/day_04.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use md5;
[INFO] [stdout]   |     ^^^ the item `md5` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/day_12.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/day_07.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (k,v) in cns.values().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..MATRIX_SIZE{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `l` is never read
[INFO] [stdout]   --> src/day_13.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[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 `r` is never read
[INFO] [stdout]   --> src/day_13.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn gifts_away_unlimited(gph:i64){
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn gifts_away_limited(gph:i64){
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/day_07.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         for (k,v) in cns.values().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `let_it_race_dep` is never used
[INFO] [stdout]   --> src/day_14.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn let_it_race_dep(racers:Vec<Raindeer>,dt:i32)->(String, i32){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/day_15.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Ingredient<'a>{
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 7 |     name:& 'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ingredient` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/day_09.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     for i in 0..MATRIX_SIZE{
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/day_16.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AuntSue<'a>{
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     id:i32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AuntSue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Item<'a> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 27 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Item` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct GameObject<'a> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 36 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GameObject` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/day_14.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |             winner = String::from(racers[i].name.clone());
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `l` is never read
[INFO] [stdout]   --> src/day_13.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[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 `r` is never read
[INFO] [stdout]   --> src/day_13.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (mut l,mut r) = (0,0);
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:46:25
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn gifts_away_unlimited(gph:i64){
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gph`
[INFO] [stdout]   --> src/day_20.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn gifts_away_limited(gph:i64){
[INFO] [stdout]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_gph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `let_it_race_dep` is never used
[INFO] [stdout]   --> src/day_14.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn let_it_race_dep(racers:Vec<Raindeer>,dt:i32)->(String, i32){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/day_15.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Ingredient<'a>{
[INFO] [stdout]   |        ---------- field in this struct
[INFO] [stdout] 7 |     name:& 'a str,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Ingredient` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/day_16.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct AuntSue<'a>{
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 8 |     id:i32,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AuntSue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Item<'a> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 27 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Item` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/day_21.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct GameObject<'a> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 36 |     key: &'a str,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GameObject` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/day_14.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |             winner = String::from(racers[i].name.clone());
[INFO] [stdout]    |                                                 ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "75202ad9967a1aafeb376a8ebd8b19fde41eb338b2354054d910549304f994fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75202ad9967a1aafeb376a8ebd8b19fde41eb338b2354054d910549304f994fb", kill_on_drop: false }`
[INFO] [stdout] 75202ad9967a1aafeb376a8ebd8b19fde41eb338b2354054d910549304f994fb