[INFO] cloning repository https://github.com/yagince/programming-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yagince/programming-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fprogramming-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fprogramming-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fb11ea3e31e1d7584b541293cb56108d4b4ac0f
[INFO] fixing yagince/programming-rust against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fprogramming-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yagince/programming-rust
[INFO] finished tweaking git repo https://github.com/yagince/programming-rust
[INFO] tweaked toml for git repo https://github.com/yagince/programming-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yagince/programming-rust on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yagince/programming-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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `samples` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988
[INFO] running `Command { std: "docker" "start" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `samples` (manifest) generated 1 warning
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/bin/5_2_4_return_references.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/5_2_2_references_static.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/4_4_rc_arc.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/4_3_copy.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/5_2_6_lifetime_parameter.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/6_5_loop.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/5_2_7_self_lifetime.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/6_4_1_if_let.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/6_7_loop.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/5_3_share_refenrence.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/main.rs from 2015 edition to 2018
[INFO] [stderr]    Migrating src/bin/6_13_cast.rs from 2015 edition to 2018
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] [stderr] crater-edition-check: samples v0.1.0 (/opt/rustwide/workdir) updating edition from 2015 to 2018
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a_2`
[INFO] [stdout]  --> src/bin/4_3_copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let a_2 = a;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_2`
[INFO] [stdout]  --> src/bin/4_3_copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let a_2 = a;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut s = Rc::new("hoge".to_string());
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/4_4_rc_arc.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let u = s.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut s = Rc::new("hoge".to_string());
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/4_4_rc_arc.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let u = s.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S<'a, 'b> {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 2 |     x: &'a i32,
[INFO] [stdout] 3 |     y: &'b i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S<'a, 'b> {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 2 |     x: &'a i32,
[INFO] [stdout] 3 |     y: &'b i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.44s
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/bin/5_2_4_return_references.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/6_13_cast.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/6_5_loop.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/5_3_share_refenrence.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/5_2_7_self_lifetime.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/6_7_loop.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/6_4_1_if_let.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/5_2_6_lifetime_parameter.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/4_4_rc_arc.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/4_3_copy.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/5_2_2_references_static.rs from 2018 edition to 2021
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.32s
[INFO] [stderr] crater-edition-check: samples v0.1.0 (/opt/rustwide/workdir) updating edition from 2018 to 2021
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut s = Rc::new("hoge".to_string());
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/4_4_rc_arc.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let u = s.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut s = Rc::new("hoge".to_string());
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/4_4_rc_arc.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let u = s.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_2`
[INFO] [stdout]  --> src/bin/4_3_copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let a_2 = a;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S<'a, 'b> {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 2 |     x: &'a i32,
[INFO] [stdout] 3 |     y: &'b i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S<'a, 'b> {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 2 |     x: &'a i32,
[INFO] [stdout] 3 |     y: &'b i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_2`
[INFO] [stdout]  --> src/bin/4_3_copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let a_2 = a;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.26s
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2015 edition to 2018
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/bin/4_4_rc_arc.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/5_2_6_lifetime_parameter.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/6_7_loop.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/5_3_share_refenrence.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/6_4_1_if_let.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/5_2_2_references_static.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/bin/5_2_4_return_references.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/5_2_7_self_lifetime.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/4_3_copy.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/6_13_cast.rs from 2021 edition to 2024
[INFO] [stderr]    Migrating src/bin/6_5_loop.rs from 2021 edition to 2024
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.76s
[INFO] [stderr] crater-edition-check: samples v0.1.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]     Checking samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> src/bin/6_4_1_if_let.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aside`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let aside = v;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_aside`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]   --> src/bin/5_3_share_refenrence.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut s = Rc::new("hoge".to_string());
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/bin/4_4_rc_arc.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/4_4_rc_arc.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let u = s.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a shared reference to mutable static
[INFO] [stdout]  --> src/bin/5_2_2_references_static.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |         println!("{:?}", STASH);
[INFO] [stdout]   |                          ^^^^^ shared reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `samples` (bin "5_2_2_references_static" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `a_2`
[INFO] [stdout]  --> src/bin/4_3_copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let a_2 = a;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_a_2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S<'a, 'b> {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 2 |     x: &'a i32,
[INFO] [stdout] 3 |     y: &'b i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988", kill_on_drop: false }`
[INFO] [stdout] 6ec18982833f09e15a28282808c9407dda54c4a44f52483bf68bdef982045988
