[INFO] cloning repository https://github.com/Berteun/rust-toy-list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Berteun/rust-toy-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBerteun%2Frust-toy-list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBerteun%2Frust-toy-list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8c02b9732a93b89c6528d053069dafac7f7b6bfe [INFO] testing Berteun/rust-toy-list 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%2FBerteun%2Frust-toy-list" "/workspace/builds/worker-76/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Berteun/rust-toy-list 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/Berteun/rust-toy-list [INFO] finished tweaking git repo https://github.com/Berteun/rust-toy-list [INFO] tweaked toml for git repo https://github.com/Berteun/rust-toy-list written to /workspace/builds/worker-76/source/Cargo.toml [INFO] crate git repo https://github.com/Berteun/rust-toy-list 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-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 96c28c88595da1d5a1bfc116b30577b589649cb874b17d5a5d430a6c922c5052 [INFO] running `Command { std: "docker" "start" "-a" "96c28c88595da1d5a1bfc116b30577b589649cb874b17d5a5d430a6c922c5052", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96c28c88595da1d5a1bfc116b30577b589649cb874b17d5a5d430a6c922c5052", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96c28c88595da1d5a1bfc116b30577b589649cb874b17d5a5d430a6c922c5052", kill_on_drop: false }` [INFO] [stdout] 96c28c88595da1d5a1bfc116b30577b589649cb874b17d5a5d430a6c922c5052 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 5cae050f109fe54035ef21c57b1c7d0cf861a7c733fff424a3105c57530f3aad [INFO] running `Command { std: "docker" "start" "-a" "5cae050f109fe54035ef21c57b1c7d0cf861a7c733fff424a3105c57530f3aad", kill_on_drop: false }` [INFO] [stderr] Compiling reverse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: private type `Node` in public interface (error E0446) [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `Node` in public interface (error E0446) [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/list/mod.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | mem::replace(self, new_list); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5cae050f109fe54035ef21c57b1c7d0cf861a7c733fff424a3105c57530f3aad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cae050f109fe54035ef21c57b1c7d0cf861a7c733fff424a3105c57530f3aad", kill_on_drop: false }` [INFO] [stdout] 5cae050f109fe54035ef21c57b1c7d0cf861a7c733fff424a3105c57530f3aad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 07530920a5671696c0c8d69b3b5d911d5268a9246734cb47e798011639c76cf6 [INFO] running `Command { std: "docker" "start" "-a" "07530920a5671696c0c8d69b3b5d911d5268a9246734cb47e798011639c76cf6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling reverse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: private type `Node` in public interface (error E0446) [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(private_in_public)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private type `Node` in public interface (error E0446) [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #34537 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/list/mod.rs:110:9 [INFO] [stdout] | [INFO] [stdout] 110 | mem::replace(self, new_list); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 21.42s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/reverse-01e51440a4ffb6fa) [INFO] running `Command { std: "docker" "inspect" "07530920a5671696c0c8d69b3b5d911d5268a9246734cb47e798011639c76cf6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07530920a5671696c0c8d69b3b5d911d5268a9246734cb47e798011639c76cf6", kill_on_drop: false }` [INFO] [stdout] 07530920a5671696c0c8d69b3b5d911d5268a9246734cb47e798011639c76cf6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 3fbb5f67645a0efd20dcfe6a332577eb364b700704eb51dab26f379aa945a83c [INFO] running `Command { std: "docker" "start" "-a" "3fbb5f67645a0efd20dcfe6a332577eb364b700704eb51dab26f379aa945a83c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: private type `Node` in public interface (error E0446) [INFO] [stderr] --> src/list/mod.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(private_in_public)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: private type `Node` in public interface (error E0446) [INFO] [stderr] --> src/list/mod.rs:74:5 [INFO] [stderr] | [INFO] [stderr] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #34537 [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/list/mod.rs:110:9 [INFO] [stderr] | [INFO] [stderr] 110 | mem::replace(self, new_list); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: `reverse` (bin "reverse" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.78s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/reverse-01e51440a4ffb6fa) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test list::create_node ... ok [INFO] [stdout] test list::test_last ... ok [INFO] [stdout] test list::create_node_and_prepend ... ok [INFO] [stdout] test list::test_drop ... ok [INFO] [stdout] test list::create_node_and_append ... ok [INFO] [stdout] test list::test_length ... ok [INFO] [stdout] test list::test_last_append_prepend ... ok [INFO] [stdout] test list::test_last_prepend ... ok [INFO] [stdout] test list::test_drop_singleton ... ok [INFO] [stdout] test list::test_last_singleton ... ok [INFO] [stdout] test list::test_reverse_singleton ... ok [INFO] [stdout] test list::test_reverse_longer ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3fbb5f67645a0efd20dcfe6a332577eb364b700704eb51dab26f379aa945a83c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fbb5f67645a0efd20dcfe6a332577eb364b700704eb51dab26f379aa945a83c", kill_on_drop: false }` [INFO] [stdout] 3fbb5f67645a0efd20dcfe6a332577eb364b700704eb51dab26f379aa945a83c