[INFO] cloning repository https://github.com/AnHaechan/prusti-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnHaechan/prusti-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnHaechan%2Fprusti-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnHaechan%2Fprusti-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a874d47a0ec2f46a49c026fc48c8fe05de399874
[INFO] testing AnHaechan/prusti-test against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnHaechan%2Fprusti-test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AnHaechan/prusti-test
[INFO] finished tweaking git repo https://github.com/AnHaechan/prusti-test
[INFO] tweaked toml for git repo https://github.com/AnHaechan/prusti-test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AnHaechan/prusti-test on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AnHaechan/prusti-test 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prusti-contracts-proc-macros v0.1.8
[INFO] [stderr]   Downloaded prusti-std v0.1.8
[INFO] [stderr]   Downloaded prusti-contracts v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47fe6824da3d00b07de82f1394f00c0cf840aaa3c4a0a6f210fe8faa67ae6d33
[INFO] running `Command { std: "docker" "start" "-a" "47fe6824da3d00b07de82f1394f00c0cf840aaa3c4a0a6f210fe8faa67ae6d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47fe6824da3d00b07de82f1394f00c0cf840aaa3c4a0a6f210fe8faa67ae6d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fe6824da3d00b07de82f1394f00c0cf840aaa3c4a0a6f210fe8faa67ae6d33", kill_on_drop: false }`
[INFO] [stdout] 47fe6824da3d00b07de82f1394f00c0cf840aaa3c4a0a6f210fe8faa67ae6d33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10eebb0e2cdbd7feb942f82d0a7004ed98c5b1354f4d8203438bf7d60ec0a595
[INFO] running `Command { std: "docker" "start" "-a" "10eebb0e2cdbd7feb942f82d0a7004ed98c5b1354f4d8203438bf7d60ec0a595", kill_on_drop: false }`
[INFO] [stderr]    Compiling prusti-contracts-proc-macros v0.1.8
[INFO] [stderr]    Compiling prusti-contracts v0.1.8
[INFO] [stderr]    Compiling prusti-std v0.1.8
[INFO] [stderr]    Compiling prusti-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `prusti`
[INFO] [stdout]    --> src/list_generic_with_peek.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 | #[cfg(prusti)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(prusti)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(prusti)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]  --> src/max.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn max(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max3` is never used
[INFO] [stdout]   --> src/max.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn max3(a: i32, b: i32, c: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `restrictive_square` is never used
[INFO] [stdout]  --> src/testing.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn restrictive_square(x: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs` is never used
[INFO] [stdout]   --> src/testing.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn abs (x: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/list_generic_with_peek.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]  --> src/list_generic_with_peek.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct List<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]   --> src/list_generic_with_peek.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/list_generic_with_peek.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:48:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl<T> List<T> {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48  |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53  |     fn is_empty(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     pub fn lookup(&self, index: usize) -> &T {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73  |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn try_pop(&mut self) -> Option<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn pop(&mut self) -> T {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn peek(&self) -> &T {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn peek_mut(&mut self) -> &mut T {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `link_lookup` is never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:149:4
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn link_lookup<T>(link: &Link<T>, index: usize) -> &T {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `link_len` is never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn link_len<T>(link: &Link<T>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "10eebb0e2cdbd7feb942f82d0a7004ed98c5b1354f4d8203438bf7d60ec0a595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10eebb0e2cdbd7feb942f82d0a7004ed98c5b1354f4d8203438bf7d60ec0a595", kill_on_drop: false }`
[INFO] [stdout] 10eebb0e2cdbd7feb942f82d0a7004ed98c5b1354f4d8203438bf7d60ec0a595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95995af125e040ca0476d82d8def348476a178a1101dc0f0fa18e5ac71463d7
[INFO] running `Command { std: "docker" "start" "-a" "d95995af125e040ca0476d82d8def348476a178a1101dc0f0fa18e5ac71463d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling prusti-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `prusti`
[INFO] [stdout]    --> src/list_generic_with_peek.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 | #[cfg(prusti)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(prusti)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(prusti)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]  --> src/max.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn max(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max3` is never used
[INFO] [stdout]   --> src/max.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn max3(a: i32, b: i32, c: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `restrictive_square` is never used
[INFO] [stdout]  --> src/testing.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn restrictive_square(x: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs` is never used
[INFO] [stdout]   --> src/testing.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn abs (x: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/list_generic_with_peek.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {}
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]  --> src/list_generic_with_peek.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct List<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]   --> src/list_generic_with_peek.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/list_generic_with_peek.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:48:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl<T> List<T> {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48  |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53  |     fn is_empty(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65  |     pub fn lookup(&self, index: usize) -> &T {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73  |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn try_pop(&mut self) -> Option<T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn pop(&mut self) -> T {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn peek(&self) -> &T {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn peek_mut(&mut self) -> &mut T {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `link_lookup` is never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:149:4
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn link_lookup<T>(link: &Link<T>, index: usize) -> &T {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `link_len` is never used
[INFO] [stdout]    --> src/list_generic_with_peek.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn link_len<T>(link: &Link<T>) -> usize {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "d95995af125e040ca0476d82d8def348476a178a1101dc0f0fa18e5ac71463d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95995af125e040ca0476d82d8def348476a178a1101dc0f0fa18e5ac71463d7", kill_on_drop: false }`
[INFO] [stdout] d95995af125e040ca0476d82d8def348476a178a1101dc0f0fa18e5ac71463d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d8bfd607e7201432b2acf10cd2edaca8b475d60a2ca451fd84aa3bbb17d09b7
[INFO] running `Command { std: "docker" "start" "-a" "4d8bfd607e7201432b2acf10cd2edaca8b475d60a2ca451fd84aa3bbb17d09b7", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `prusti`
[INFO] [stderr]    --> src/list_generic_with_peek.rs:171:7
[INFO] [stderr]     |
[INFO] [stderr] 171 | #[cfg(prusti)]
[INFO] [stderr]     |       ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(prusti)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(prusti)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `max` is never used
[INFO] [stderr]  --> src/max.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn max(a: i32, b: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `max3` is never used
[INFO] [stderr]   --> src/max.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn max3(a: i32, b: i32, c: i32) -> i32 {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `restrictive_square` is never used
[INFO] [stderr]  --> src/testing.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn restrictive_square(x: i32) -> i32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `abs` is never used
[INFO] [stderr]   --> src/testing.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn abs (x: i32) -> i32 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/list_generic_with_peek.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn main() {}
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `List` is never constructed
[INFO] [stderr]  --> src/list_generic_with_peek.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct List<T> {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Link` is never used
[INFO] [stderr]   --> src/list_generic_with_peek.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Link<T> = Option<Box<Node<T>>>;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]   --> src/list_generic_with_peek.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct Node<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/list_generic_with_peek.rs:48:12
[INFO] [stderr]     |
[INFO] [stderr] 44  | impl<T> List<T> {
[INFO] [stderr]     | --------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 48  |     pub fn len(&self) -> usize {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 53  |     fn is_empty(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58  |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 65  |     pub fn lookup(&self, index: usize) -> &T {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 73  |     pub fn push(&mut self, elem: T) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     pub fn try_pop(&mut self) -> Option<T> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     pub fn pop(&mut self) -> T {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |     pub fn peek(&self) -> &T {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn peek_mut(&mut self) -> &mut T {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `link_lookup` is never used
[INFO] [stderr]    --> src/list_generic_with_peek.rs:149:4
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn link_lookup<T>(link: &Link<T>, index: usize) -> &T {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `link_len` is never used
[INFO] [stderr]    --> src/list_generic_with_peek.rs:164:4
[INFO] [stderr]     |
[INFO] [stderr] 164 | fn link_len<T>(link: &Link<T>) -> usize {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `prusti-test` (bin "prusti-test" test) generated 12 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/prusti_test-1bc5b38ae63e5cd3)
[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" "4d8bfd607e7201432b2acf10cd2edaca8b475d60a2ca451fd84aa3bbb17d09b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8bfd607e7201432b2acf10cd2edaca8b475d60a2ca451fd84aa3bbb17d09b7", kill_on_drop: false }`
[INFO] [stdout] 4d8bfd607e7201432b2acf10cd2edaca8b475d60a2ca451fd84aa3bbb17d09b7
