[INFO] cloning repository https://github.com/suzuki-hoge/rust-design-pattern
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suzuki-hoge/rust-design-pattern" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuzuki-hoge%2Frust-design-pattern", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuzuki-hoge%2Frust-design-pattern'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7190ac065f1afd298722e7702d129357c4fc9f84
[INFO] building suzuki-hoge/rust-design-pattern against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuzuki-hoge%2Frust-design-pattern" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suzuki-hoge/rust-design-pattern on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suzuki-hoge/rust-design-pattern
[INFO] finished tweaking git repo https://github.com/suzuki-hoge/rust-design-pattern
[INFO] tweaked toml for git repo https://github.com/suzuki-hoge/rust-design-pattern written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/suzuki-hoge/rust-design-pattern 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea0e9049772ee8028ed03aa94b08be47b7dfa77d849b01858674ca8db012b757
[INFO] running `Command { std: "docker" "start" "-a" "ea0e9049772ee8028ed03aa94b08be47b7dfa77d849b01858674ca8db012b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea0e9049772ee8028ed03aa94b08be47b7dfa77d849b01858674ca8db012b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0e9049772ee8028ed03aa94b08be47b7dfa77d849b01858674ca8db012b757", kill_on_drop: false }`
[INFO] [stdout] ea0e9049772ee8028ed03aa94b08be47b7dfa77d849b01858674ca8db012b757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db59a30e29da8f29f514d9583bac92723935663095142765d93a7971f4ee1bf4
[INFO] running `Command { std: "docker" "start" "-a" "db59a30e29da8f29f514d9583bac92723935663095142765d93a7971f4ee1bf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rust-desgin-pattern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Calculator` is never constructed
[INFO] [stdout]  --> src/behavioral_patterns/command/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Calculator {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `exec_all` and `undo_all` are never used
[INFO] [stdout]   --> src/behavioral_patterns/command/mod.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Calculator {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 9  |     fn exec_all(&self, operand: i64) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn undo_all(&self, operand: i64) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Command` is never used
[INFO] [stdout]   --> src/behavioral_patterns/command/mod.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait Command {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AddCommand` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/command/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct AddCommand {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NegateCommand` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/command/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct NegateCommand;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Noticer` is never used
[INFO] [stdout]  --> src/behavioral_patterns/strategy/mod.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Noticer {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mail` is never constructed
[INFO] [stdout]  --> src/behavioral_patterns/strategy/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Mail {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SMS` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/strategy/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct SMS {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Report` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/strategy/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Report<T: Noticer> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `notice` are never used
[INFO] [stdout]   --> src/behavioral_patterns/strategy/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<T: Noticer> Report<T> {
[INFO] [stdout]    | -------------------------- associated items in this implementation
[INFO] [stdout] 33 |     // 通信手段は交換可能である
[INFO] [stdout] 34 |     pub fn new(noticer: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn notice(&self, message: &str) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TextTemplate` is never used
[INFO] [stdout]  --> src/behavioral_patterns/template/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait TextTemplate {
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimpleText` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/template/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct SimpleText {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Html` is never constructed
[INFO] [stdout]   --> src/behavioral_patterns/template/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Html {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Supplier` is never used
[INFO] [stdout]  --> src/creational_patterns/factory_method/mod.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Supplier {
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Processor` is never used
[INFO] [stdout]  --> src/creational_patterns/factory_method/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Processor {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/creational_patterns/factory_method/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct SagawaSupplier {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 21 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SagawaSupplier` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SagawaProcessor` is never constructed
[INFO] [stdout]   --> src/creational_patterns/factory_method/mod.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct SagawaProcessor {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/creational_patterns/factory_method/mod.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl SagawaProcessor {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 36 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     update_mods(&modules);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let _ = update_mods(&modules);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     update_readme(&modules);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let _ = update_readme(&modules);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "db59a30e29da8f29f514d9583bac92723935663095142765d93a7971f4ee1bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db59a30e29da8f29f514d9583bac92723935663095142765d93a7971f4ee1bf4", kill_on_drop: false }`
[INFO] [stdout] db59a30e29da8f29f514d9583bac92723935663095142765d93a7971f4ee1bf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4becb0434a58ea8be0a1590113fd5bf293c4c31cbde91d9aeae97c30bd0cc7e1
[INFO] running `Command { std: "docker" "start" "-a" "4becb0434a58ea8be0a1590113fd5bf293c4c31cbde91d9aeae97c30bd0cc7e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-desgin-pattern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     update_mods(&modules);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let _ = update_mods(&modules);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     update_readme(&modules);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let _ = update_readme(&modules);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "4becb0434a58ea8be0a1590113fd5bf293c4c31cbde91d9aeae97c30bd0cc7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4becb0434a58ea8be0a1590113fd5bf293c4c31cbde91d9aeae97c30bd0cc7e1", kill_on_drop: false }`
[INFO] [stdout] 4becb0434a58ea8be0a1590113fd5bf293c4c31cbde91d9aeae97c30bd0cc7e1