[INFO] cloning repository https://github.com/Eson-Jia/rust-play-ground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eson-Jia/rust-play-ground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Frust-play-ground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Frust-play-ground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dd185b73c3e92aa42d4c73412360dff9e16f1e7c [INFO] checking Eson-Jia/rust-play-ground against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Frust-play-ground" "/workspace/builds/worker-116/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Eson-Jia/rust-play-ground 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/Eson-Jia/rust-play-ground [INFO] finished tweaking git repo https://github.com/Eson-Jia/rust-play-ground [INFO] tweaked toml for git repo https://github.com/Eson-Jia/rust-play-ground written to /workspace/builds/worker-116/source/Cargo.toml [INFO] crate git repo https://github.com/Eson-Jia/rust-play-ground 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 2fbe260f5128c7d3ecdcb476d6cafc630e25638c89836fe7d8eb8f670c44e922 [INFO] running `Command { std: "docker" "start" "-a" "2fbe260f5128c7d3ecdcb476d6cafc630e25638c89836fe7d8eb8f670c44e922", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2fbe260f5128c7d3ecdcb476d6cafc630e25638c89836fe7d8eb8f670c44e922", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2fbe260f5128c7d3ecdcb476d6cafc630e25638c89836fe7d8eb8f670c44e922", kill_on_drop: false }` [INFO] [stdout] 2fbe260f5128c7d3ecdcb476d6cafc630e25638c89836fe7d8eb8f670c44e922 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] dab4dc8c3721262fe80daefa4566de7dabfb8da68cbd1b1ff4b09bc88e0c7290 [INFO] running `Command { std: "docker" "start" "-a" "dab4dc8c3721262fe80daefa4566de7dabfb8da68cbd1b1ff4b09bc88e0c7290", 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 autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking play-ground v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/main.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/vector.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/list.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/match_result.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/functions.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/hash.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/guess_game.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/function_with_return.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/method.rs from 2018 edition to 2021 [INFO] [stderr] Migrating src/bin/data_type.rs from 2018 edition to 2021 [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/vector.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let v: Vec = Vec::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/vector.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let v = vec![123,12]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/bin/vector.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let first = v[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/bin/vector.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let second = v.get(1); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `does_not_exist` [INFO] [stdout] --> src/bin/vector.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let does_not_exist = v[100]; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_does_not_exist` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `does_not_exist` [INFO] [stdout] --> src/bin/vector.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let does_not_exist= v.get(100); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_does_not_exist` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/vector.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut v = vec![1,2,3,4,5]; [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] error[E0502]: cannot borrow `v` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/bin/vector.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | let first = &v[0]; [INFO] [stdout] | - immutable borrow occurs here [INFO] [stdout] 26 | v.push(6); [INFO] [stdout] | ^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 27 | println!("the first element is :{}",first); [INFO] [stdout] | ----- immutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `play-ground` due to 2 previous errors; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] Fixed src/bin/match_result.rs (1 fix) [INFO] [stdout] warning: function is never used: `test1` [INFO] [stdout] --> src/bin/functions.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn test1(a:String){ [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/bin/functions.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn test(){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/match_result.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | f.write(b"hello,world"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/match_result.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | f.read_to_string( & mut buff); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/match_result.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | f.write(b"hello,world"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/match_result.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | f.read_to_string( & mut buff); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `square` [INFO] [stdout] --> src/bin/method.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn square(size:u32) ->Rectangle{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/bin/method.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn size(&self)->(u32,u32){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/vector.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let v: Vec = Vec::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/vector.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let v = vec![123,12]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/bin/vector.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let first = v[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second` [INFO] [stdout] --> src/bin/vector.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let second = v.get(1); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `does_not_exist` [INFO] [stdout] --> src/bin/vector.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let does_not_exist = v[100]; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_does_not_exist` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `does_not_exist` [INFO] [stdout] --> src/bin/vector.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let does_not_exist= v.get(100); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_does_not_exist` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/vector.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut v = vec![1,2,3,4,5]; [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] error[E0502]: cannot borrow `v` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/bin/vector.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | let first = &v[0]; [INFO] [stdout] | - immutable borrow occurs here [INFO] [stdout] 26 | v.push(6); [INFO] [stdout] | ^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 27 | println!("the first element is :{}",first); [INFO] [stdout] | ----- immutable borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] Fixed src/bin/data_type.rs (11 fixes) [INFO] [stdout] warning: associated function is never used: `square` [INFO] [stdout] --> src/bin/method.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn square(size:u32) ->Rectangle{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `size` [INFO] [stdout] --> src/bin/method.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn size(&self)->(u32,u32){ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/bin/functions.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn test(){ [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] [stderr] error: failed to migrate to next edition [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "dab4dc8c3721262fe80daefa4566de7dabfb8da68cbd1b1ff4b09bc88e0c7290", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dab4dc8c3721262fe80daefa4566de7dabfb8da68cbd1b1ff4b09bc88e0c7290", kill_on_drop: false }` [INFO] [stdout] dab4dc8c3721262fe80daefa4566de7dabfb8da68cbd1b1ff4b09bc88e0c7290