[INFO] cloning repository https://github.com/LironHazan/rusty-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LironHazan/rusty-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1ad54bf14f4bde13310a62f95c905848405f864
[INFO] checking LironHazan/rusty-playground against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LironHazan/rusty-playground on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LironHazan/rusty-playground
[INFO] finished tweaking git repo https://github.com/LironHazan/rusty-playground
[INFO] tweaked toml for git repo https://github.com/LironHazan/rusty-playground written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/LironHazan/rusty-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 669bd8e361161f7d0e15951324be0f52996156cfdcada30af91fef8298d4066b
[INFO] running `Command { std: "docker" "start" "-a" "669bd8e361161f7d0e15951324be0f52996156cfdcada30af91fef8298d4066b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "669bd8e361161f7d0e15951324be0f52996156cfdcada30af91fef8298d4066b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "669bd8e361161f7d0e15951324be0f52996156cfdcada30af91fef8298d4066b", kill_on_drop: false }`
[INFO] [stdout] 669bd8e361161f7d0e15951324be0f52996156cfdcada30af91fef8298d4066b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94fe3dc9426f95c6cdd388a69f1466c548a03966654da1acc755f1241ed3490e
[INFO] running `Command { std: "docker" "start" "-a" "94fe3dc9426f95c6cdd388a69f1466c548a03966654da1acc755f1241ed3490e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusty-playgraound v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stdout] warning: function is never used: `take_ownwership_sum`
[INFO] [stdout]  --> src/lang_stuff/borrows.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn take_ownwership_sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn borrow_sum(v: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `imperative_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn imperative_sum() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn make_noises(animals: Vec<Box<dyn NoisyAnimal>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises_with_constraints`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn make_noises_with_constraints<T: NoisyAnimal>(animal: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_make_noises() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_ownwership_sum`
[INFO] [stdout]  --> src/lang_stuff/borrows.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn take_ownwership_sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn borrow_sum(v: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `imperative_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn imperative_sum() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn make_noises(animals: Vec<Box<dyn NoisyAnimal>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises_with_constraints`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn make_noises_with_constraints<T: NoisyAnimal>(animal: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_make_noises() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.88s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rusty-playgraound v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `take_ownwership_sum`
[INFO] [stdout]  --> src/lang_stuff/borrows.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn take_ownwership_sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn borrow_sum(v: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `imperative_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn imperative_sum() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn make_noises(animals: Vec<Box<dyn NoisyAnimal>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises_with_constraints`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn make_noises_with_constraints<T: NoisyAnimal>(animal: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_make_noises() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_ownwership_sum`
[INFO] [stdout]  --> src/lang_stuff/borrows.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn take_ownwership_sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn borrow_sum(v: &Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `imperative_sum`
[INFO] [stdout]   --> src/lang_stuff/borrows.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn imperative_sum() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn make_noises(animals: Vec<Box<dyn NoisyAnimal>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_noises_with_constraints`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn make_noises_with_constraints<T: NoisyAnimal>(animal: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_make_noises`
[INFO] [stdout]   --> src/lang_stuff/trait_obj.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_make_noises() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "94fe3dc9426f95c6cdd388a69f1466c548a03966654da1acc755f1241ed3490e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94fe3dc9426f95c6cdd388a69f1466c548a03966654da1acc755f1241ed3490e", kill_on_drop: false }`
[INFO] [stdout] 94fe3dc9426f95c6cdd388a69f1466c548a03966654da1acc755f1241ed3490e