[INFO] cloning repository https://github.com/dave20874/rs_aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dave20874/rs_aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave20874%2Frs_aoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave20874%2Frs_aoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82c6dc8ebc43f147cd968c27fcb98c93de3bc0c3
[INFO] checking dave20874/rs_aoc2020 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdave20874%2Frs_aoc2020" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dave20874/rs_aoc2020 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dave20874/rs_aoc2020
[INFO] finished tweaking git repo https://github.com/dave20874/rs_aoc2020
[INFO] tweaked toml for git repo https://github.com/dave20874/rs_aoc2020 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dave20874/rs_aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusttype v0.4.3
[INFO] [stderr]   Downloaded stb_truetype v0.2.8
[INFO] [stderr]   Downloaded ordered-float v0.5.2
[INFO] [stderr]   Downloaded array2d v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dde4e0064d065609aa17d8c1affe7ed61420c78fcde8c7979d3d1c7b48189a92
[INFO] running `Command { std: "docker" "start" "-a" "dde4e0064d065609aa17d8c1affe7ed61420c78fcde8c7979d3d1c7b48189a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dde4e0064d065609aa17d8c1affe7ed61420c78fcde8c7979d3d1c7b48189a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde4e0064d065609aa17d8c1affe7ed61420c78fcde8c7979d3d1c7b48189a92", kill_on_drop: false }`
[INFO] [stdout] dde4e0064d065609aa17d8c1affe7ed61420c78fcde8c7979d3d1c7b48189a92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f39136311b0408103aec5f4e9f5e7591f6462601028e931904fb5dda8de5bf9
[INFO] running `Command { std: "docker" "start" "-a" "6f39136311b0408103aec5f4e9f5e7591f6462601028e931904fb5dda8de5bf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking array2d v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rs_aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/ticket_translation.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         for n in 0..self.my_ticket.values.len() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fieldname`
[INFO] [stdout]    --> src/ticket_translation.rs:198:18
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for (fieldname, rule) in &self.fields {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fieldname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> src/ticket_translation.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for (fieldname, rule) in &self.fields {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/ticket_translation.rs:196:13
[INFO] [stdout]     |
[INFO] [stdout] 196 |         for n in 0..self.my_ticket.values.len() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fieldname`
[INFO] [stdout]    --> src/ticket_translation.rs:198:18
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for (fieldname, rule) in &self.fields {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fieldname`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> src/ticket_translation.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for (fieldname, rule) in &self.fields {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.17s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f39136311b0408103aec5f4e9f5e7591f6462601028e931904fb5dda8de5bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f39136311b0408103aec5f4e9f5e7591f6462601028e931904fb5dda8de5bf9", kill_on_drop: false }`
[INFO] [stdout] 6f39136311b0408103aec5f4e9f5e7591f6462601028e931904fb5dda8de5bf9