[INFO] cloning repository https://github.com/smashedtoatoms/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smashedtoatoms/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmashedtoatoms%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmashedtoatoms%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9bec7fb012e317b905ae35b68562c4095fbda4c8
[INFO] checking smashedtoatoms/aoc2020 against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmashedtoatoms%2Faoc2020" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/smashedtoatoms/aoc2020 on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smashedtoatoms/aoc2020
[INFO] finished tweaking git repo https://github.com/smashedtoatoms/aoc2020
[INFO] tweaked toml for git repo https://github.com/smashedtoatoms/aoc2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smashedtoatoms/aoc2020 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11a6b82f2f47881d9d14c09636dd9d4073f3f860d52ecd5919bc00823ea1ddde
[INFO] running `Command { std: "docker" "start" "-a" "11a6b82f2f47881d9d14c09636dd9d4073f3f860d52ecd5919bc00823ea1ddde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11a6b82f2f47881d9d14c09636dd9d4073f3f860d52ecd5919bc00823ea1ddde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a6b82f2f47881d9d14c09636dd9d4073f3f860d52ecd5919bc00823ea1ddde", kill_on_drop: false }`
[INFO] [stdout] 11a6b82f2f47881d9d14c09636dd9d4073f3f860d52ecd5919bc00823ea1ddde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b21854eab13436ad94e9fa9e51b078d5cdf24dbef23ec136f084ffeb316f132
[INFO] running `Command { std: "docker" "start" "-a" "7b21854eab13436ad94e9fa9e51b078d5cdf24dbef23ec136f084ffeb316f132", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]     Checking input_file v0.1.0 (/opt/rustwide/workdir/lib/input-file)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> lib/input-file/src/lib.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn strings<'a>(&'a self, delimiter: &'a str) -> impl Iterator<Item = &str> + 'a {
[INFO] [stdout]    |                         ^^                   ^^                              ----    -- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                         |                    |                               |
[INFO] [stdout]    |                         |                    |                               the lifetimes get resolved as `'a`
[INFO] [stdout]    |                         |                    these lifetimes flow to the output
[INFO] [stdout]    |                         these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn strings<'a>(&'a self, delimiter: &'a str) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]    |                                                                               ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> lib/input-file/src/lib.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn strings<'a>(&'a self, delimiter: &'a str) -> impl Iterator<Item = &str> + 'a {
[INFO] [stdout]    |                         ^^                   ^^                              ----    -- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                         |                    |                               |
[INFO] [stdout]    |                         |                    |                               the lifetimes get resolved as `'a`
[INFO] [stdout]    |                         |                    these lifetimes flow to the output
[INFO] [stdout]    |                         these lifetimes flow to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn strings<'a>(&'a self, delimiter: &'a str) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]    |                                                                               ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day-3 v0.1.0 (/opt/rustwide/workdir/src/day-3)
[INFO] [stderr]     Checking day-2 v0.1.0 (/opt/rustwide/workdir/src/day-2)
[INFO] [stderr]     Checking day-6 v0.1.0 (/opt/rustwide/workdir/src/day-6)
[INFO] [stderr]     Checking day-1 v0.1.0 (/opt/rustwide/workdir/src/day-1)
[INFO] [stderr]     Checking day-8 v0.1.0 (/opt/rustwide/workdir/src/day-8)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "7b21854eab13436ad94e9fa9e51b078d5cdf24dbef23ec136f084ffeb316f132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b21854eab13436ad94e9fa9e51b078d5cdf24dbef23ec136f084ffeb316f132", kill_on_drop: false }`
[INFO] [stdout] 7b21854eab13436ad94e9fa9e51b078d5cdf24dbef23ec136f084ffeb316f132