[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 master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBerteun%2Frust-toy-list" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Berteun/rust-toy-list on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-7/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e2aa79860822b9a52d03deabf168bb002f52f908e402a2eb58e3df71e9ade316 [INFO] running `Command { std: "docker" "start" "-a" "e2aa79860822b9a52d03deabf168bb002f52f908e402a2eb58e3df71e9ade316", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2aa79860822b9a52d03deabf168bb002f52f908e402a2eb58e3df71e9ade316", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2aa79860822b9a52d03deabf168bb002f52f908e402a2eb58e3df71e9ade316", kill_on_drop: false }` [INFO] [stdout] e2aa79860822b9a52d03deabf168bb002f52f908e402a2eb58e3df71e9ade316 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 52e2a592edd91c7c1788909681deb265cde61e2d7ba8f516bab1d0540e23de36 [INFO] running `Command { std: "docker" "start" "-a" "52e2a592edd91c7c1788909681deb265cde61e2d7ba8f516bab1d0540e23de36", 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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.63s [INFO] running `Command { std: "docker" "inspect" "52e2a592edd91c7c1788909681deb265cde61e2d7ba8f516bab1d0540e23de36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52e2a592edd91c7c1788909681deb265cde61e2d7ba8f516bab1d0540e23de36", kill_on_drop: false }` [INFO] [stdout] 52e2a592edd91c7c1788909681deb265cde61e2d7ba8f516bab1d0540e23de36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6f134652d6af5848b920f94294539311efcd90adf43c5bf37d1b4a954cf80f4c [INFO] running `Command { std: "docker" "start" "-a" "6f134652d6af5848b920f94294539311efcd90adf43c5bf37d1b4a954cf80f4c", 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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `Command { std: "docker" "inspect" "6f134652d6af5848b920f94294539311efcd90adf43c5bf37d1b4a954cf80f4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f134652d6af5848b920f94294539311efcd90adf43c5bf37d1b4a954cf80f4c", kill_on_drop: false }` [INFO] [stdout] 6f134652d6af5848b920f94294539311efcd90adf43c5bf37d1b4a954cf80f4c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 58962d28347f303de015ef6381c53d48a8ccd07130e6a8c98d0f6e706848f98d [INFO] running `Command { std: "docker" "start" "-a" "58962d28347f303de015ef6381c53d48a8ccd07130e6a8c98d0f6e706848f98d", kill_on_drop: false }` [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: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/reverse-08092cbf6981e2a6) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test list::test_last ... ok [INFO] [stdout] test list::test_drop_singleton ... ok [INFO] [stdout] test list::test_drop ... ok [INFO] [stdout] test list::test_length ... ok [INFO] [stdout] test list::create_node_and_append ... ok [INFO] [stdout] test list::create_node_and_prepend ... ok [INFO] [stdout] test list::test_last_prepend ... ok [INFO] [stdout] test list::test_last_singleton ... ok [INFO] [stdout] test list::test_last_append_prepend ... ok [INFO] [stdout] test list::create_node ... ok [INFO] [stdout] test list::test_reverse_longer ... ok [INFO] [stdout] test list::test_reverse_singleton ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "58962d28347f303de015ef6381c53d48a8ccd07130e6a8c98d0f6e706848f98d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58962d28347f303de015ef6381c53d48a8ccd07130e6a8c98d0f6e706848f98d", kill_on_drop: false }` [INFO] [stdout] 58962d28347f303de015ef6381c53d48a8ccd07130e6a8c98d0f6e706848f98d