[INFO] cloning repository https://github.com/rusty-peep/Activity-3-Struct-and-enum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rusty-peep/Activity-3-Struct-and-enum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frusty-peep%2FActivity-3-Struct-and-enum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frusty-peep%2FActivity-3-Struct-and-enum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95d93fad7c0294c5410517a58dd0a607628d0e6e
[INFO] building rusty-peep/Activity-3-Struct-and-enum 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%2Frusty-peep%2FActivity-3-Struct-and-enum" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rusty-peep/Activity-3-Struct-and-enum 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/rusty-peep/Activity-3-Struct-and-enum
[INFO] finished tweaking git repo https://github.com/rusty-peep/Activity-3-Struct-and-enum
[INFO] tweaked toml for git repo https://github.com/rusty-peep/Activity-3-Struct-and-enum written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rusty-peep/Activity-3-Struct-and-enum 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 45f3532624f41b9ae8b5381d8e281117022725863950cb080061f6d7c39cb41c
[INFO] running `Command { std: "docker" "start" "-a" "45f3532624f41b9ae8b5381d8e281117022725863950cb080061f6d7c39cb41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f3532624f41b9ae8b5381d8e281117022725863950cb080061f6d7c39cb41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f3532624f41b9ae8b5381d8e281117022725863950cb080061f6d7c39cb41c", kill_on_drop: false }`
[INFO] [stdout] 45f3532624f41b9ae8b5381d8e281117022725863950cb080061f6d7c39cb41c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f0ba8a5de869ad190879f8f55a32c6c0e86432158692fdc9a3c9c2b74718bccd
[INFO] running `Command { std: "docker" "start" "-a" "f0ba8a5de869ad190879f8f55a32c6c0e86432158692fdc9a3c9c2b74718bccd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling Activity-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `author`
[INFO] [stdout]   --> src/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn new(author: i32, isbn: i32) -> Book {
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_author`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isbn`
[INFO] [stdout]   --> src/main.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn new(author: i32, isbn: i32) -> Book {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_isbn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_of_days`
[INFO] [stdout]   --> src/main.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn issue_book(&self, no_of_days: u8) -> Book {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_of_days`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Available`, `Issued`, and `Reserved` are never constructed
[INFO] [stdout]   --> src/main.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | enum BookStatus {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 6  |     // The book is available to be issued or reserved
[INFO] [stdout] 7  |     Available,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     Issued(u8, i32),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Reserved,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `author`, `isbn`, and `status` are never read
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Book {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 17 |     id: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     author: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 19 |     isbn: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 20 |     status: BookStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_book_id` is never used
[INFO] [stdout]   --> src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_book_id() -> i32 { 
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_current_timestamp` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn get_current_timestamp() -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "f0ba8a5de869ad190879f8f55a32c6c0e86432158692fdc9a3c9c2b74718bccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ba8a5de869ad190879f8f55a32c6c0e86432158692fdc9a3c9c2b74718bccd", kill_on_drop: false }`
[INFO] [stdout] f0ba8a5de869ad190879f8f55a32c6c0e86432158692fdc9a3c9c2b74718bccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1df2a1ce561eac605cb0960ebee87031ae8e298d86da807fcfdd4c5678a56c36
[INFO] running `Command { std: "docker" "start" "-a" "1df2a1ce561eac605cb0960ebee87031ae8e298d86da807fcfdd4c5678a56c36", kill_on_drop: false }`
[INFO] [stderr]    Compiling Activity-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/tests.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `author`
[INFO] [stdout]   --> src/main.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn new(author: i32, isbn: i32) -> Book {
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_author`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isbn`
[INFO] [stdout]   --> src/main.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn new(author: i32, isbn: i32) -> Book {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_isbn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_of_days`
[INFO] [stdout]   --> src/main.rs:45:26
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn issue_book(&self, no_of_days: u8) -> Book {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_of_days`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Available`, `Issued`, and `Reserved` are never constructed
[INFO] [stdout]   --> src/main.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | enum BookStatus {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 6  |     // The book is available to be issued or reserved
[INFO] [stdout] 7  |     Available,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     Issued(u8, i32),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Reserved,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Book {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 17 |     id: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_book_id` is never used
[INFO] [stdout]   --> src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn get_book_id() -> i32 { 
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_current_timestamp` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn get_current_timestamp() -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "1df2a1ce561eac605cb0960ebee87031ae8e298d86da807fcfdd4c5678a56c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df2a1ce561eac605cb0960ebee87031ae8e298d86da807fcfdd4c5678a56c36", kill_on_drop: false }`
[INFO] [stdout] 1df2a1ce561eac605cb0960ebee87031ae8e298d86da807fcfdd4c5678a56c36