[INFO] cloning repository https://github.com/mitchgollub/rust-dynamic-programming
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitchgollub/rust-dynamic-programming" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchgollub%2Frust-dynamic-programming", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchgollub%2Frust-dynamic-programming'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b6c8d5716fd6f10e567174829e766a9f9a63cdd
[INFO] testing mitchgollub/rust-dynamic-programming against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchgollub%2Frust-dynamic-programming" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitchgollub/rust-dynamic-programming on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mitchgollub/rust-dynamic-programming
[INFO] finished tweaking git repo https://github.com/mitchgollub/rust-dynamic-programming
[INFO] tweaked toml for git repo https://github.com/mitchgollub/rust-dynamic-programming written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/mitchgollub/rust-dynamic-programming already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fbfe3463f972c82e89513abe8a433ddc2314787283ae1945de9309c4d16186a
[INFO] running `Command { std: "docker" "start" "-a" "8fbfe3463f972c82e89513abe8a433ddc2314787283ae1945de9309c4d16186a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fbfe3463f972c82e89513abe8a433ddc2314787283ae1945de9309c4d16186a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fbfe3463f972c82e89513abe8a433ddc2314787283ae1945de9309c4d16186a", kill_on_drop: false }`
[INFO] [stdout] 8fbfe3463f972c82e89513abe8a433ddc2314787283ae1945de9309c4d16186a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a01f526f197886ca271ff2bd63a8baeb1859fb507c25d6192a147d466ff693a9
[INFO] running `Command { std: "docker" "start" "-a" "a01f526f197886ca271ff2bd63a8baeb1859fb507c25d6192a147d466ff693a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling dynamic-programming-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fib_example`
[INFO] [stdout]  --> src/memoization/fib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn fib_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fib`
[INFO] [stdout]  --> src/memoization/fib.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fib(n: usize, map: &mut HashMap<usize, usize>) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grid_traveler_example`
[INFO] [stdout]  --> src/memoization/grid_traveler.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn grid_traveler_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grid_traveler`
[INFO] [stdout]   --> src/memoization/grid_traveler.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn grid_traveler(m: usize, n: usize, map: &mut HashMap<(usize, usize), usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_sum_example`
[INFO] [stdout]  --> src/memoization/can_sum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn can_sum_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_sum`
[INFO] [stdout]   --> src/memoization/can_sum.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn can_sum(target_sum: i32, numbers: &Vec<i32>, map: &mut HashMap<i32, bool>) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "a01f526f197886ca271ff2bd63a8baeb1859fb507c25d6192a147d466ff693a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01f526f197886ca271ff2bd63a8baeb1859fb507c25d6192a147d466ff693a9", kill_on_drop: false }`
[INFO] [stdout] a01f526f197886ca271ff2bd63a8baeb1859fb507c25d6192a147d466ff693a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1ecf3efd4eb276b7b38cf8c68cb585a17530e28fb7e6a893263457157f5d4e3
[INFO] running `Command { std: "docker" "start" "-a" "d1ecf3efd4eb276b7b38cf8c68cb585a17530e28fb7e6a893263457157f5d4e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling dynamic-programming-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fib_example`
[INFO] [stdout]  --> src/memoization/fib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn fib_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fib`
[INFO] [stdout]  --> src/memoization/fib.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn fib(n: usize, map: &mut HashMap<usize, usize>) -> usize {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grid_traveler_example`
[INFO] [stdout]  --> src/memoization/grid_traveler.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn grid_traveler_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grid_traveler`
[INFO] [stdout]   --> src/memoization/grid_traveler.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn grid_traveler(m: usize, n: usize, map: &mut HashMap<(usize, usize), usize>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_sum_example`
[INFO] [stdout]  --> src/memoization/can_sum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn can_sum_example() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_sum`
[INFO] [stdout]   --> src/memoization/can_sum.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn can_sum(target_sum: i32, numbers: &Vec<i32>, map: &mut HashMap<i32, bool>) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/dynamic_programming_examples-cd668f9ef24dad24)
[INFO] running `Command { std: "docker" "inspect" "d1ecf3efd4eb276b7b38cf8c68cb585a17530e28fb7e6a893263457157f5d4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ecf3efd4eb276b7b38cf8c68cb585a17530e28fb7e6a893263457157f5d4e3", kill_on_drop: false }`
[INFO] [stdout] d1ecf3efd4eb276b7b38cf8c68cb585a17530e28fb7e6a893263457157f5d4e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a9e960dffaa88bfcfae870f90695708c1b628edb9711ffb2f3fc864f6095915
[INFO] running `Command { std: "docker" "start" "-a" "4a9e960dffaa88bfcfae870f90695708c1b628edb9711ffb2f3fc864f6095915", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `fib_example`
[INFO] [stderr]  --> src/memoization/fib.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn fib_example() {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fib`
[INFO] [stderr]  --> src/memoization/fib.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn fib(n: usize, map: &mut HashMap<usize, usize>) -> usize {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grid_traveler_example`
[INFO] [stderr]  --> src/memoization/grid_traveler.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn grid_traveler_example() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grid_traveler`
[INFO] [stderr]   --> src/memoization/grid_traveler.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn grid_traveler(m: usize, n: usize, map: &mut HashMap<(usize, usize), usize>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `can_sum_example`
[INFO] [stderr]  --> src/memoization/can_sum.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn can_sum_example() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `can_sum`
[INFO] [stderr]   --> src/memoization/can_sum.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn can_sum(target_sum: i32, numbers: &Vec<i32>, map: &mut HashMap<i32, bool>) -> bool {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dynamic-programming-examples` (bin "dynamic-programming-examples" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dynamic_programming_examples-cd668f9ef24dad24)
[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" "4a9e960dffaa88bfcfae870f90695708c1b628edb9711ffb2f3fc864f6095915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9e960dffaa88bfcfae870f90695708c1b628edb9711ffb2f3fc864f6095915", kill_on_drop: false }`
[INFO] [stdout] 4a9e960dffaa88bfcfae870f90695708c1b628edb9711ffb2f3fc864f6095915