[INFO] cloning repository https://github.com/mattiast/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattiast/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiast%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiast%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f18c56517075423b6754a0b973aa889079c81b2d
[INFO] checking mattiast/aoc2020 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiast%2Faoc2020" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattiast/aoc2020 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattiast/aoc2020
[INFO] finished tweaking git repo https://github.com/mattiast/aoc2020
[INFO] tweaked toml for git repo https://github.com/mattiast/aoc2020 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mattiast/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3d46d7b92e23785235e154f9d67c00a91517e5d7ed01d2d359b89c98d044aaae
[INFO] running `Command { std: "docker" "start" "-a" "3d46d7b92e23785235e154f9d67c00a91517e5d7ed01d2d359b89c98d044aaae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d46d7b92e23785235e154f9d67c00a91517e5d7ed01d2d359b89c98d044aaae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d46d7b92e23785235e154f9d67c00a91517e5d7ed01d2d359b89c98d044aaae", kill_on_drop: false }`
[INFO] [stdout] 3d46d7b92e23785235e154f9d67c00a91517e5d7ed01d2d359b89c98d044aaae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57abdb4761f0976d217e7070f44b76a23471c434e33a08ca3450374f16fe6aba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "57abdb4761f0976d217e7070f44b76a23471c434e33a08ca3450374f16fe6aba", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling eyre v0.6.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking owo-colors v1.2.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking indenter v0.3.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking sharded-slab v0.1.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking color-eyre v0.5.10
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]   --> src/day19.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let rules: HashMap<usize, Rule> = rules.into_iter().map(|r| (r.number, r)).collect();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]   --> src/day19.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let rules: HashMap<usize, Rule> = rules.into_iter().map(|r| (r.number, r)).collect();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Mask` in public interface (error E0446)
[INFO] [stdout]   --> src/day14.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Mask(Mask),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]   --> src/day18.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 |     enum Op {
[INFO] [stdout]    |          ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operator`
[INFO] [stdout]   --> src/day18.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn operator<'a>(input: &'a str) -> IResult<&'a str, Op> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_pat`
[INFO] [stdout]   --> src/day19.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn match_pat<'a>(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_term`
[INFO] [stdout]   --> src/day19.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn match_term<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_token`
[INFO] [stdout]   --> src/day19.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn match_token<'a>(t: &Token, rules: &'a HashMap<usize, Rule>, input: &'a str) -> Option<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Mask` in public interface (error E0446)
[INFO] [stdout]   --> src/day14.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Mask(Mask),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]   --> src/day18.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 |     enum Op {
[INFO] [stdout]    |          ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operator`
[INFO] [stdout]   --> src/day18.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn operator<'a>(input: &'a str) -> IResult<&'a str, Op> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_pat`
[INFO] [stdout]   --> src/day19.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn match_pat<'a>(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_term`
[INFO] [stdout]   --> src/day19.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn match_term<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_token`
[INFO] [stdout]   --> src/day19.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn match_token<'a>(t: &Token, rules: &'a HashMap<usize, Rule>, input: &'a str) -> Option<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.66s
[INFO] running `Command { std: "docker" "inspect" "57abdb4761f0976d217e7070f44b76a23471c434e33a08ca3450374f16fe6aba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57abdb4761f0976d217e7070f44b76a23471c434e33a08ca3450374f16fe6aba", kill_on_drop: false }`
[INFO] [stdout] 57abdb4761f0976d217e7070f44b76a23471c434e33a08ca3450374f16fe6aba