[INFO] cloning repository https://github.com/gpwclark/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gpwclark/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc02c9b4e669a3865709ba3108457a9e86a8df2b
[INFO] testing gpwclark/learnrust against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpwclark%2Flearnrust" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gpwclark/learnrust on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gpwclark/learnrust
[INFO] finished tweaking git repo https://github.com/gpwclark/learnrust
[INFO] tweaked toml for git repo https://github.com/gpwclark/learnrust written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/gpwclark/learnrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fabafaae03163d2bd2f56cff1c92e75c155c8a969c6388ddc37e03d700c4b30a
[INFO] running `Command { std: "docker" "start" "-a" "fabafaae03163d2bd2f56cff1c92e75c155c8a969c6388ddc37e03d700c4b30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fabafaae03163d2bd2f56cff1c92e75c155c8a969c6388ddc37e03d700c4b30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fabafaae03163d2bd2f56cff1c92e75c155c8a969c6388ddc37e03d700c4b30a", kill_on_drop: false }`
[INFO] [stdout] fabafaae03163d2bd2f56cff1c92e75c155c8a969c6388ddc37e03d700c4b30a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5e5203a25c2bc4a304c2878a0614cdc5da3d39638c2f4a42d3a277faec35aa3
[INFO] running `Command { std: "docker" "start" "-a" "e5e5203a25c2bc4a304c2878a0614cdc5da3d39638c2f4a42d3a277faec35aa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling directories v0.10.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling confy v0.3.1
[INFO] [stderr]    Compiling learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         min: u32,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         max: u32,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `req`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         req: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passwd`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         passwd: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |         pub fn new(line: &str) -> Option<Password> {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_password`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         fn make_password(line: &str) -> Option<Password> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid_new`
[INFO] [stdout]   --> src/advent_of_code/mod.rs:82:16
[INFO] [stdout]    |
[INFO] [stdout] 82 |         pub fn is_valid_new(&self) -> bool {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:101:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |         pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_puzzle_1`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:205:12
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn solve_puzzle_1() -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_puzzle_2`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 217 |     pub fn solve_puzzle_2() -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:242:16
[INFO] [stdout]     |
[INFO] [stdout] 242 |         pub fn new(arr: Vec<u8>) -> CircArr {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:248:16
[INFO] [stdout]     |
[INFO] [stdout] 248 |         pub fn get(&self, idx: usize) -> u8 {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_puzzle_1`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:278:12
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub fn solve_puzzle_1() -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_puzzle_2`
[INFO] [stdout]    --> src/advent_of_code/mod.rs:300:12
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn solve_puzzle_2() {}
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar`
[INFO] [stdout]  --> src/data_structures/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         bar: bool,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tup`
[INFO] [stdout]  --> src/data_structures/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         tup: (u32, u32),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.41s
[INFO] running `Command { std: "docker" "inspect" "e5e5203a25c2bc4a304c2878a0614cdc5da3d39638c2f4a42d3a277faec35aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e5203a25c2bc4a304c2878a0614cdc5da3d39638c2f4a42d3a277faec35aa3", kill_on_drop: false }`
[INFO] [stdout] e5e5203a25c2bc4a304c2878a0614cdc5da3d39638c2f4a42d3a277faec35aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f16ba9be700ecd5b9fab2ae8d460d2b8b3951fe4109b385d1e347dada52189
[INFO] running `Command { std: "docker" "start" "-a" "73f16ba9be700ecd5b9fab2ae8d460d2b8b3951fe4109b385d1e347dada52189", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `bar`
[INFO] [stdout]  --> src/data_structures/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         bar: bool,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tup`
[INFO] [stdout]  --> src/data_structures/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         tup: (u32, u32),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "73f16ba9be700ecd5b9fab2ae8d460d2b8b3951fe4109b385d1e347dada52189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f16ba9be700ecd5b9fab2ae8d460d2b8b3951fe4109b385d1e347dada52189", kill_on_drop: false }`
[INFO] [stdout] 73f16ba9be700ecd5b9fab2ae8d460d2b8b3951fe4109b385d1e347dada52189
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b5b5683c9cf7a56719cdb51f388fd8f3904ff8417b02b908fd7bf175fddb64a
[INFO] running `Command { std: "docker" "start" "-a" "0b5b5683c9cf7a56719cdb51f388fd8f3904ff8417b02b908fd7bf175fddb64a", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `bar`
[INFO] [stderr]  --> src/data_structures/mod.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |         bar: bool,
[INFO] [stderr]   |         ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tup`
[INFO] [stderr]  --> src/data_structures/mod.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |         tup: (u32, u32),
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learn` (bin "learn" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn-b7667e3ddfea6b51)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn-ff2804b7b73d4b38)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test advent_of_code::accounting::tests::pass_closure ... ok
[INFO] [stdout] test advent_of_code::tests::test_infini_arr ... ok
[INFO] [stdout] test advent_of_code::tests::test_matching ... ok
[INFO] [stdout] test advent_of_code::tests::test_sqrt ... ok
[INFO] [stdout] test advent_of_code::tests::test_usze ... ok
[INFO] [stdout] test advent_of_code::accounting::tests::test_password_line_parse ... ok
[INFO] [stdout] test advent_of_code::tests::solve_aoc3 ... ok
[INFO] [stdout] test advent_of_code::accounting::tests::test_bad_password_line_parse - should panic ... ok
[INFO] [stdout] test advent_of_code::tests::solve_aoc1 ... ok
[INFO] [stdout] test advent_of_code::tests::solve_aoc2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.83s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests learn
[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" "0b5b5683c9cf7a56719cdb51f388fd8f3904ff8417b02b908fd7bf175fddb64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5b5683c9cf7a56719cdb51f388fd8f3904ff8417b02b908fd7bf175fddb64a", kill_on_drop: false }`
[INFO] [stdout] 0b5b5683c9cf7a56719cdb51f388fd8f3904ff8417b02b908fd7bf175fddb64a