[INFO] updating cached repository PierreLeidbring/AoC-2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PierreLeidbring/AoC-2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PierreLeidbring/AoC-2018" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/PierreLeidbring/AoC-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/PierreLeidbring/AoC-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PierreLeidbring/AoC-2018" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/PierreLeidbring/AoC-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/PierreLeidbring/AoC-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e043268029bc69c0f971a038ccf5e9b82dd3a82
[INFO] sha for GitHub repo PierreLeidbring/AoC-2018: 1e043268029bc69c0f971a038ccf5e9b82dd3a82
[INFO] validating manifest of PierreLeidbring/AoC-2018 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PierreLeidbring/AoC-2018 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PierreLeidbring/AoC-2018
[INFO] finished frobbing PierreLeidbring/AoC-2018
[INFO] frobbed toml for PierreLeidbring/AoC-2018 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/PierreLeidbring/AoC-2018/Cargo.toml
[INFO] started frobbing PierreLeidbring/AoC-2018
[INFO] finished frobbing PierreLeidbring/AoC-2018
[INFO] frobbed toml for PierreLeidbring/AoC-2018 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/PierreLeidbring/AoC-2018/Cargo.toml
[INFO] crate PierreLeidbring/AoC-2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking PierreLeidbring/AoC-2018 against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/PierreLeidbring/AoC-2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 953c00b6004a72e3afc431fbab468fbc8b1ce12b99c66e8178028730d306da36
[INFO] running `"docker" "start" "-a" "953c00b6004a72e3afc431fbab468fbc8b1ce12b99c66e8178028730d306da36"`
[INFO] [stderr]     Checking aoc-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{self, BufRead, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{self, BufRead, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inp`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn faux(inp: Vec<String>) -> String {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_inp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inp`
[INFO] [stderr]   --> src/day2/mod.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn two(inp: Vec<String>) -> String {
[INFO] [stderr]    |        ^^^ help: consider prefixing with an underscore: `_inp`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one`
[INFO] [stderr]  --> src/day2/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn one(inp: Vec<String>) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two`
[INFO] [stderr]   --> src/day2/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn two(inp: Vec<String>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `faux`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn faux(inp: Vec<String>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `collections`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections)]
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `aoc-2018`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `inp`
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn faux(inp: Vec<String>) -> String {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_inp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inp`
[INFO] [stderr]   --> src/day2/mod.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn two(inp: Vec<String>) -> String {
[INFO] [stderr]    |        ^^^ help: consider prefixing with an underscore: `_inp`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one`
[INFO] [stderr]  --> src/day2/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn one(inp: Vec<String>) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two`
[INFO] [stderr]   --> src/day2/mod.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn two(inp: Vec<String>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `faux`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn faux(inp: Vec<String>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `collections`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections)]
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `aoc-2018`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "953c00b6004a72e3afc431fbab468fbc8b1ce12b99c66e8178028730d306da36"`
[INFO] running `"docker" "rm" "-f" "953c00b6004a72e3afc431fbab468fbc8b1ce12b99c66e8178028730d306da36"`
[INFO] [stdout] 953c00b6004a72e3afc431fbab468fbc8b1ce12b99c66e8178028730d306da36