[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] checking Berteun/rust-toy-list against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBerteun%2Frust-toy-list" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Berteun/rust-toy-list on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 265d8561d9bc9f2ca191065c7afb21880d9b4f9fd043119a61d5237c937ac4ad [INFO] running `Command { std: "docker" "start" "-a" "265d8561d9bc9f2ca191065c7afb21880d9b4f9fd043119a61d5237c937ac4ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "265d8561d9bc9f2ca191065c7afb21880d9b4f9fd043119a61d5237c937ac4ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "265d8561d9bc9f2ca191065c7afb21880d9b4f9fd043119a61d5237c937ac4ad", kill_on_drop: false }` [INFO] [stdout] 265d8561d9bc9f2ca191065c7afb21880d9b4f9fd043119a61d5237c937ac4ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 651db4d812af918d6a6848bb8780152f15b4632e5a3103b78fc5691544dcbb91 [INFO] running `Command { std: "docker" "start" "-a" "651db4d812af918d6a6848bb8780152f15b4632e5a3103b78fc5691544dcbb91", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking reverse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `Node` is more private than the item `List::::first` [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::first` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::last` [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::last` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = mem::replace(self, new_list); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::first` [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::first` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::last` [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::last` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = mem::replace(self, new_list); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "651db4d812af918d6a6848bb8780152f15b4632e5a3103b78fc5691544dcbb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "651db4d812af918d6a6848bb8780152f15b4632e5a3103b78fc5691544dcbb91", kill_on_drop: false }` [INFO] [stdout] 651db4d812af918d6a6848bb8780152f15b4632e5a3103b78fc5691544dcbb91 [INFO] checking Berteun/rust-toy-list against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBerteun%2Frust-toy-list" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Berteun/rust-toy-list on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 93ed850e395856eccb2c162204c35308f48b8610385628fcb4c993d5ddb57f7b [INFO] running `Command { std: "docker" "start" "-a" "93ed850e395856eccb2c162204c35308f48b8610385628fcb4c993d5ddb57f7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "93ed850e395856eccb2c162204c35308f48b8610385628fcb4c993d5ddb57f7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93ed850e395856eccb2c162204c35308f48b8610385628fcb4c993d5ddb57f7b", kill_on_drop: false }` [INFO] [stdout] 93ed850e395856eccb2c162204c35308f48b8610385628fcb4c993d5ddb57f7b [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 65f1e01f6f1edb59e650d0f61d0cd72c0218cab7b37c7205f63866db8c177c29 [INFO] running `Command { std: "docker" "start" "-a" "65f1e01f6f1edb59e650d0f61d0cd72c0218cab7b37c7205f63866db8c177c29", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking reverse v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `Node` is more private than the item `List::::first` [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::first` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::last` [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::last` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = mem::replace(self, new_list); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::first` [INFO] [stdout] --> src/list/mod.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn first(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::first` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_interfaces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Node` is more private than the item `List::::last` [INFO] [stdout] --> src/list/mod.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | pub fn last(&self) -> Option<&Node> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `List::::last` is reachable at visibility `pub(crate)` [INFO] [stdout] | [INFO] [stdout] note: but type `Node` is only usable at visibility `pub(self)` [INFO] [stdout] --> src/list/mod.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [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: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = mem::replace(self, new_list); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "65f1e01f6f1edb59e650d0f61d0cd72c0218cab7b37c7205f63866db8c177c29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65f1e01f6f1edb59e650d0f61d0cd72c0218cab7b37c7205f63866db8c177c29", kill_on_drop: false }` [INFO] [stdout] 65f1e01f6f1edb59e650d0f61d0cd72c0218cab7b37c7205f63866db8c177c29