[INFO] cloning repository https://github.com/Ramla-I/trusted_linked_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ramla-I/trusted_linked_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamla-I%2Ftrusted_linked_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamla-I%2Ftrusted_linked_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd37b7815ac5423110adfd111630daf7806f40d2
[INFO] checking Ramla-I/trusted_linked_list against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamla-I%2Ftrusted_linked_list" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ramla-I/trusted_linked_list
[INFO] finished tweaking git repo https://github.com/Ramla-I/trusted_linked_list
[INFO] tweaked toml for git repo https://github.com/Ramla-I/trusted_linked_list written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ramla-I/trusted_linked_list on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ramla-I/trusted_linked_list 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d63554a9324c8e333deb08f13095c05a0ae5351eacdc92948b882ceafc6b45a4
[INFO] running `Command { std: "docker" "start" "-a" "d63554a9324c8e333deb08f13095c05a0ae5351eacdc92948b882ceafc6b45a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d63554a9324c8e333deb08f13095c05a0ae5351eacdc92948b882ceafc6b45a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63554a9324c8e333deb08f13095c05a0ae5351eacdc92948b882ceafc6b45a4", kill_on_drop: false }`
[INFO] [stdout] d63554a9324c8e333deb08f13095c05a0ae5351eacdc92948b882ceafc6b45a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efecdae179a00e2f2673b63742b6b20fb6e74de304ab11e8c11bf3059671f9ea
[INFO] running `Command { std: "docker" "start" "-a" "efecdae179a00e2f2673b63742b6b20fb6e74de304ab11e8c11bf3059671f9ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling prusti-contracts-proc-macros v0.1.2
[INFO] [stderr]     Checking prusti-contracts v0.1.2
[INFO] [stderr]     Checking trusted_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `prusti`
[INFO] [stdout]    --> src/main.rs:184:16
[INFO] [stdout]     |
[INFO] [stdout] 184 |     #[cfg_attr(feature="prusti", pure)]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `prusti` as a feature in `Cargo.toml`
[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: unexpected `cfg` condition value: `prusti`
[INFO] [stdout]    --> src/main.rs:184:16
[INFO] [stdout]     |
[INFO] [stdout] 184 |     #[cfg_attr(feature="prusti", pure)]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `prusti` as a feature in `Cargo.toml`
[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: unused variable: `node`
[INFO] [stdout]   --> src/main.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |             Link::More(box node) => false,
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/main.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |             Link::More(box node) => false,
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_len`
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let old_len = self.head.len();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_len`
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let old_len = self.head.len();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_len`
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let old_len = self.head.len();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_len`
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let old_len = self.head.len();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TestStruct` is never constructed
[INFO] [stdout]   --> src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct TestStruct(usize);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]   --> src/main.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<T> Link<T> {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 39 |     #[pure]
[INFO] [stdout] 40 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TestStruct` is never constructed
[INFO] [stdout]   --> src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct TestStruct(usize);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]   --> src/main.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<T> Link<T> {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 39 |     #[pure]
[INFO] [stdout] 40 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `push_unique` and `overlaps` are never used
[INFO] [stdout]    --> src/main.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl<T: PartialEq + UniqueObject> List<T> {
[INFO] [stdout]     | ----------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn push_unique(&mut self, elem: T) -> TrustedOption<T>{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub(crate) fn overlaps(link: &Link<T>, elem: &T) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `push_unique` and `overlaps` are never used
[INFO] [stdout]    --> src/main.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl<T: PartialEq + UniqueObject> List<T> {
[INFO] [stdout]     | ----------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn push_unique(&mut self, elem: T) -> TrustedOption<T>{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 185 |     pub(crate) fn overlaps(link: &Link<T>, elem: &T) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trusted_linked_list` (bin "trusted_linked_list" test) due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `trusted_linked_list` (bin "trusted_linked_list") due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "efecdae179a00e2f2673b63742b6b20fb6e74de304ab11e8c11bf3059671f9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efecdae179a00e2f2673b63742b6b20fb6e74de304ab11e8c11bf3059671f9ea", kill_on_drop: false }`
[INFO] [stdout] efecdae179a00e2f2673b63742b6b20fb6e74de304ab11e8c11bf3059671f9ea
