[INFO] cloning repository https://github.com/hasanhaja/rust_book_workthrough [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hasanhaja/rust_book_workthrough" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhasanhaja%2Frust_book_workthrough", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhasanhaja%2Frust_book_workthrough'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fb94a901fa00cfef7e3484d23d28279d003a7cf0 [INFO] building hasanhaja/rust_book_workthrough 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%2Fhasanhaja%2Frust_book_workthrough" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hasanhaja/rust_book_workthrough 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/hasanhaja/rust_book_workthrough [INFO] finished tweaking git repo https://github.com/hasanhaja/rust_book_workthrough [INFO] tweaked toml for git repo https://github.com/hasanhaja/rust_book_workthrough written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hasanhaja/rust_book_workthrough 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a3902a3345c9f124e8a3caa461516943c2b3efd311d9a82020a0e270316ecd3f [INFO] running `Command { std: "docker" "start" "-a" "a3902a3345c9f124e8a3caa461516943c2b3efd311d9a82020a0e270316ecd3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3902a3345c9f124e8a3caa461516943c2b3efd311d9a82020a0e270316ecd3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3902a3345c9f124e8a3caa461516943c2b3efd311d9a82020a0e270316ecd3f", kill_on_drop: false }` [INFO] [stdout] a3902a3345c9f124e8a3caa461516943c2b3efd311d9a82020a0e270316ecd3f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 829b28469ac32432e7236b9b255dde592a51f793f1258df218c9e7cbf4de9bad [INFO] running `Command { std: "docker" "start" "-a" "829b28469ac32432e7236b9b255dde592a51f793f1258df218c9e7cbf4de9bad", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling rand v0.4.3 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling rust_book_workthrough v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::structs::Rectangle` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::structs::Rectangle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Guess` is never constructed [INFO] [stdout] --> src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct Guess { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Guess { [INFO] [stdout] | ---------- associated function in this implementation [INFO] [stdout] 23 | pub fn new(value: i32) -> Guess { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Person` is never constructed [INFO] [stdout] --> src/structs.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Person { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Triangle` is never constructed [INFO] [stdout] --> src/structs.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Triangle { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Triangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `area` is never used [INFO] [stdout] --> src/structs.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Triangle { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] 17 | // Method syntax [INFO] [stdout] 18 | pub fn area(&self) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/structs.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `square`, `area`, and `can_hold` are never used [INFO] [stdout] --> src/structs.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn square(size: u64) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn area(&self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s [INFO] running `Command { std: "docker" "inspect" "829b28469ac32432e7236b9b255dde592a51f793f1258df218c9e7cbf4de9bad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "829b28469ac32432e7236b9b255dde592a51f793f1258df218c9e7cbf4de9bad", kill_on_drop: false }` [INFO] [stdout] 829b28469ac32432e7236b9b255dde592a51f793f1258df218c9e7cbf4de9bad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9b54ac07269f60df6dbc30f733de02eadc7201d5a9b616ddc36dc0d29b106344 [INFO] running `Command { std: "docker" "start" "-a" "9b54ac07269f60df6dbc30f733de02eadc7201d5a9b616ddc36dc0d29b106344", kill_on_drop: false }` [INFO] [stderr] Compiling rust_book_workthrough v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 19 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Person` is never constructed [INFO] [stdout] --> src/structs.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Person { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Triangle` is never constructed [INFO] [stdout] --> src/structs.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Triangle { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Triangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `area` is never used [INFO] [stdout] --> src/structs.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Triangle { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] 17 | // Method syntax [INFO] [stdout] 18 | pub fn area(&self) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `square` and `area` are never used [INFO] [stdout] --> src/structs.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn square(size: u64) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn area(&self) -> u64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "9b54ac07269f60df6dbc30f733de02eadc7201d5a9b616ddc36dc0d29b106344", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b54ac07269f60df6dbc30f733de02eadc7201d5a9b616ddc36dc0d29b106344", kill_on_drop: false }` [INFO] [stdout] 9b54ac07269f60df6dbc30f733de02eadc7201d5a9b616ddc36dc0d29b106344