[INFO] cloning repository https://github.com/lissitz/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lissitz/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissitz%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissitz%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44460dffad73e09790b131364d7140396a6d96d8
[INFO] testing lissitz/aoc-2020 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flissitz%2Faoc-2020" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lissitz/aoc-2020
[INFO] finished tweaking git repo https://github.com/lissitz/aoc-2020
[INFO] tweaked toml for git repo https://github.com/lissitz/aoc-2020 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lissitz/aoc-2020 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lissitz/aoc-2020 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cec3dd9f08e8aaaeb71b494ea299d682a1c84cafc6193287b8bea2033afa972
[INFO] running `Command { std: "docker" "start" "-a" "4cec3dd9f08e8aaaeb71b494ea299d682a1c84cafc6193287b8bea2033afa972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cec3dd9f08e8aaaeb71b494ea299d682a1c84cafc6193287b8bea2033afa972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cec3dd9f08e8aaaeb71b494ea299d682a1c84cafc6193287b8bea2033afa972", kill_on_drop: false }`
[INFO] [stdout] 4cec3dd9f08e8aaaeb71b494ea299d682a1c84cafc6193287b8bea2033afa972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ab4a7d058d904921fff11b175295550cb5c3b6c9094b0c243c2c608f8ef9ef
[INFO] running `Command { std: "docker" "start" "-a" "d3ab4a7d058d904921fff11b175295550cb5c3b6c9094b0c243c2c608f8ef9ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.19s
[INFO] running `Command { std: "docker" "inspect" "d3ab4a7d058d904921fff11b175295550cb5c3b6c9094b0c243c2c608f8ef9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ab4a7d058d904921fff11b175295550cb5c3b6c9094b0c243c2c608f8ef9ef", kill_on_drop: false }`
[INFO] [stdout] d3ab4a7d058d904921fff11b175295550cb5c3b6c9094b0c243c2c608f8ef9ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64f011620e66e1264ebb95f0a243f44643b8e7415bf87cdbad9c0f11b9029060
[INFO] running `Command { std: "docker" "start" "-a" "64f011620e66e1264ebb95f0a243f44643b8e7415bf87cdbad9c0f11b9029060", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> examples/16/main.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |         .map(|_| ((0..fields.len()).collect()))
[INFO] [stdout]    |                  ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -         .map(|_| ((0..fields.len()).collect()))
[INFO] [stdout] 63 +         .map(|_| (0..fields.len()).collect())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> examples/25/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let N = 20201227;
[INFO] [stdout]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timestamp`
[INFO] [stdout]   --> examples/13/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let timestamp = lines.next().unwrap().parse::<u64>().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> examples/20/main.rs:222:44
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/20/main.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn tile_placements(t: &Tile) -> Vec<TilePlacement> {
[INFO] [stdout]    |                       ^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn tile_placements(t: &Tile) -> Vec<TilePlacement<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> examples/24/main.rs:138:44
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "64f011620e66e1264ebb95f0a243f44643b8e7415bf87cdbad9c0f11b9029060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f011620e66e1264ebb95f0a243f44643b8e7415bf87cdbad9c0f11b9029060", kill_on_drop: false }`
[INFO] [stdout] 64f011620e66e1264ebb95f0a243f44643b8e7415bf87cdbad9c0f11b9029060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0291fe87e9052dddd75f4c363aedf5a482d771d56620779f1008e79793d784a7
[INFO] running `Command { std: "docker" "start" "-a" "0291fe87e9052dddd75f4c363aedf5a482d771d56620779f1008e79793d784a7", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `timestamp`
[INFO] [stderr]   --> examples/13/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let timestamp = lines.next().unwrap().parse::<u64>().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> examples/24/main.rs:138:44
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stderr]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `aoc` (example "13") generated 1 warning
[INFO] [stderr] warning: `aoc` (example "24") generated 1 warning
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]  --> examples/25/main.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let N = 20201227;
[INFO] [stderr]   |         ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> examples/20/main.rs:222:44
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn _index(index: [usize; 2], x: usize, y: usize) -> usize {
[INFO] [stderr]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> examples/20/main.rs:83:23
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn tile_placements(t: &Tile) -> Vec<TilePlacement> {
[INFO] [stderr]    |                       ^^^^^         ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn tile_placements(t: &Tile) -> Vec<TilePlacement<'_>> {
[INFO] [stderr]    |                                                  ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> examples/16/main.rs:63:18
[INFO] [stderr]    |
[INFO] [stderr] 63 |         .map(|_| ((0..fields.len()).collect()))
[INFO] [stderr]    |                  ^                           ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 63 -         .map(|_| ((0..fields.len()).collect()))
[INFO] [stderr] 63 +         .map(|_| (0..fields.len()).collect())
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `aoc` (example "25") generated 1 warning
[INFO] [stderr] warning: `aoc` (example "20") generated 2 warnings (run `cargo fix --example "20"` to apply 1 suggestion)
[INFO] [stderr] warning: `aoc` (example "16") generated 1 warning (run `cargo fix --example "16"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/aoc-916497637a88fc31)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0291fe87e9052dddd75f4c363aedf5a482d771d56620779f1008e79793d784a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0291fe87e9052dddd75f4c363aedf5a482d771d56620779f1008e79793d784a7", kill_on_drop: false }`
[INFO] [stdout] 0291fe87e9052dddd75f4c363aedf5a482d771d56620779f1008e79793d784a7