[INFO] cloning repository https://github.com/vini2809/mtg_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vini2809/mtg_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvini2809%2Fmtg_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvini2809%2Fmtg_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ecee553b0a9895e1d72ce5f9f9392a39debbf42
[INFO] checking vini2809/mtg_rust against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvini2809%2Fmtg_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vini2809/mtg_rust
[INFO] finished tweaking git repo https://github.com/vini2809/mtg_rust
[INFO] tweaked toml for git repo https://github.com/vini2809/mtg_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vini2809/mtg_rust on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vini2809/mtg_rust 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" "+82310651b93a594a3fd69015e1562186a080d94c" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 786d542bd735ec0b177a2691d3b4a5a35ed13efcecd5728e92c692b36ec9be76
[INFO] running `Command { std: "docker" "start" "-a" "786d542bd735ec0b177a2691d3b4a5a35ed13efcecd5728e92c692b36ec9be76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "786d542bd735ec0b177a2691d3b4a5a35ed13efcecd5728e92c692b36ec9be76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786d542bd735ec0b177a2691d3b4a5a35ed13efcecd5728e92c692b36ec9be76", kill_on_drop: false }`
[INFO] [stdout] 786d542bd735ec0b177a2691d3b4a5a35ed13efcecd5728e92c692b36ec9be76
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7076b5f935b586f6728938d878d45eb493f12196cf116b9f0fc8384254cc133
[INFO] running `Command { std: "docker" "start" "-a" "c7076b5f935b586f6728938d878d45eb493f12196cf116b9f0fc8384254cc133", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mtg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `img_link`
[INFO] [stdout]   --> src/deck.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(id: u32, img_link: &str) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_img_link`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `card`
[INFO] [stdout]   --> src/deck.rs:56:34
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn put_in_xth(&mut self, card: Box<Card>) {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_card`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `img_link`
[INFO] [stdout]   --> src/deck.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(id: u32, img_link: &str) -> Self {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_img_link`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `card`
[INFO] [stdout]   --> src/deck.rs:56:34
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn put_in_xth(&mut self, card: Box<Card>) {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_card`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut me = Player::new(60);
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut me = Player::new(60);
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hand`, `deck`, and `graveyard` are never read
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Player<'a> {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     hand: Vec<Box<Card<'a>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     deck: Deck<'a>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     graveyard: Vec<Box<Card<'a>>>
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Player` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hand`, `deck`, and `graveyard` are never read
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Player<'a> {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     hand: Vec<Box<Card<'a>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     deck: Deck<'a>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     graveyard: Vec<Box<Card<'a>>>
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Player` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `img` are never read
[INFO] [stdout]  --> src/deck.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Card<'a> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 6 |     img: &'a str,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Card` 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 function `new` is never used
[INFO] [stdout]   --> src/deck.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'a> Card<'a> {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: u32, img_link: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cards` and `size` are never read
[INFO] [stdout]   --> src/deck.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Deck<'a> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 21 |     cards: Vec<Box<Card<'a>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 22 |     size: u8,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Deck` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `img` are never read
[INFO] [stdout]  --> src/deck.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Card<'a> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     id: u32,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 6 |     img: &'a str,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Card` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/deck.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a> Deck<'a> {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn put_top(&mut self, card: Box<Card<'a>>) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn put_bottom(&mut self, card: Box<Card<'a>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn put_in_xth(&mut self, card: Box<Card>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card>]> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn shuffle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/deck.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'a> Card<'a> {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(id: u32, img_link: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cards` and `size` are never read
[INFO] [stdout]   --> src/deck.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Deck<'a> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 21 |     cards: Vec<Box<Card<'a>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 22 |     size: u8,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Deck` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/deck.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card>> {
[INFO] [stdout]    |                 ^^^^^^^^^                ---- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card<'_>>> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/deck.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a> Deck<'a> {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn put_top(&mut self, card: Box<Card<'a>>) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn put_bottom(&mut self, card: Box<Card<'a>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn put_in_xth(&mut self, card: Box<Card>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card>]> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn shuffle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/deck.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card>> {
[INFO] [stdout]    |                 ^^^^^^^^^                ---- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn draw(&mut self) -> Option<Box<Card<'_>>> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/deck.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card>]> {
[INFO] [stdout]    |                 ^^^^^^^^^                   ------------
[INFO] [stdout]    |                 |                           |     |
[INFO] [stdout]    |                 |                           |     the same lifetime is hidden here
[INFO] [stdout]    |                 |                           the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card<'_>>]> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/deck.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card>]> {
[INFO] [stdout]    |                 ^^^^^^^^^                   ------------
[INFO] [stdout]    |                 |                           |     |
[INFO] [stdout]    |                 |                           |     the same lifetime is hidden here
[INFO] [stdout]    |                 |                           the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn scry(&mut self, x: u8) -> Option<&[Box<Card<'_>>]> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "c7076b5f935b586f6728938d878d45eb493f12196cf116b9f0fc8384254cc133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7076b5f935b586f6728938d878d45eb493f12196cf116b9f0fc8384254cc133", kill_on_drop: false }`
[INFO] [stdout] c7076b5f935b586f6728938d878d45eb493f12196cf116b9f0fc8384254cc133
