[INFO] cloning repository https://github.com/prajwalprabhu/data_structure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prajwalprabhu/data_structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajwalprabhu%2Fdata_structure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajwalprabhu%2Fdata_structure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8a253e672afd5b6e8ab406ef01b539a2795dcfc
[INFO] testing prajwalprabhu/data_structure against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprajwalprabhu%2Fdata_structure" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/prajwalprabhu/data_structure
[INFO] finished tweaking git repo https://github.com/prajwalprabhu/data_structure
[INFO] tweaked toml for git repo https://github.com/prajwalprabhu/data_structure written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/prajwalprabhu/data_structure on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/prajwalprabhu/data_structure 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7099e19d80003f64e2bbd8fe7567d7cf873fec13f5d8c72597704ca5ee896715
[INFO] running `Command { std: "docker" "start" "-a" "7099e19d80003f64e2bbd8fe7567d7cf873fec13f5d8c72597704ca5ee896715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7099e19d80003f64e2bbd8fe7567d7cf873fec13f5d8c72597704ca5ee896715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7099e19d80003f64e2bbd8fe7567d7cf873fec13f5d8c72597704ca5ee896715", kill_on_drop: false }`
[INFO] [stdout] 7099e19d80003f64e2bbd8fe7567d7cf873fec13f5d8c72597704ca5ee896715
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b39fe8c604c81f1245858fd764c23c47eb0c9822c12f81e160f10882f7c7372
[INFO] running `Command { std: "docker" "start" "-a" "7b39fe8c604c81f1245858fd764c23c47eb0c9822c12f81e160f10882f7c7372", kill_on_drop: false }`
[INFO] [stderr]    Compiling datastructure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]  --> src/infix2.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn eval(eq: String) -> u32 {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/infix2.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn check(eq: String) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_result` is never used
[INFO] [stdout]   --> src/infix2.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn to_result(result: Vec<String>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power` is never used
[INFO] [stdout]   --> src/infix2.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn power(mut eq: Vec<String>) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_vec` is never used
[INFO] [stdout]    --> src/infix2.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn to_vec(eq: String) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_post` is never used
[INFO] [stdout]    --> src/infix2.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn to_post(eq: Vec<String>) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "7b39fe8c604c81f1245858fd764c23c47eb0c9822c12f81e160f10882f7c7372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b39fe8c604c81f1245858fd764c23c47eb0c9822c12f81e160f10882f7c7372", kill_on_drop: false }`
[INFO] [stdout] 7b39fe8c604c81f1245858fd764c23c47eb0c9822c12f81e160f10882f7c7372
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dddb4e2aa389ab5b541990ec31afce6141d186f3af54325be8b8eac9f7952874
[INFO] running `Command { std: "docker" "start" "-a" "dddb4e2aa389ab5b541990ec31afce6141d186f3af54325be8b8eac9f7952874", kill_on_drop: false }`
[INFO] [stderr]    Compiling datastructure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `eval` is never used
[INFO] [stdout]  --> src/infix2.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn eval(eq: String) -> u32 {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/infix2.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn check(eq: String) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_result` is never used
[INFO] [stdout]   --> src/infix2.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn to_result(result: Vec<String>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power` is never used
[INFO] [stdout]   --> src/infix2.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn power(mut eq: Vec<String>) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_vec` is never used
[INFO] [stdout]    --> src/infix2.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn to_vec(eq: String) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_post` is never used
[INFO] [stdout]    --> src/infix2.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn to_post(eq: Vec<String>) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "dddb4e2aa389ab5b541990ec31afce6141d186f3af54325be8b8eac9f7952874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddb4e2aa389ab5b541990ec31afce6141d186f3af54325be8b8eac9f7952874", kill_on_drop: false }`
[INFO] [stdout] dddb4e2aa389ab5b541990ec31afce6141d186f3af54325be8b8eac9f7952874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5fcc7238b643380f64672d4e3c3388ce6b8eb39887168bf2be54a43bbb5e149b
[INFO] running `Command { std: "docker" "start" "-a" "5fcc7238b643380f64672d4e3c3388ce6b8eb39887168bf2be54a43bbb5e149b", kill_on_drop: false }`
[INFO] [stderr] warning: function `eval` is never used
[INFO] [stderr]  --> src/infix2.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn eval(eq: String) -> u32 {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `check` is never used
[INFO] [stderr]  --> src/infix2.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn check(eq: String) {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `to_result` is never used
[INFO] [stderr]   --> src/infix2.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn to_result(result: Vec<String>) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `power` is never used
[INFO] [stderr]   --> src/infix2.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn power(mut eq: Vec<String>) -> Vec<String> {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `to_vec` is never used
[INFO] [stderr]    --> src/infix2.rs:104:4
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn to_vec(eq: String) -> Vec<String> {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `to_post` is never used
[INFO] [stderr]    --> src/infix2.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn to_post(eq: Vec<String>) -> Vec<String> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `datastructure` (lib) generated 6 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/datastructure-b25a724451059476)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test to_binary::test_binary::to_binary ... ok
[INFO] [stdout] test infix2::test_infix::infix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests datastructure
[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" "5fcc7238b643380f64672d4e3c3388ce6b8eb39887168bf2be54a43bbb5e149b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fcc7238b643380f64672d4e3c3388ce6b8eb39887168bf2be54a43bbb5e149b", kill_on_drop: false }`
[INFO] [stdout] 5fcc7238b643380f64672d4e3c3388ce6b8eb39887168bf2be54a43bbb5e149b