[INFO] cloning repository https://github.com/lowks/gettingrusty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lowks/gettingrusty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c793a1888c8b5ef702b8ea63e1e91c9084c7e9a
[INFO] testing lowks/gettingrusty against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flowks%2Fgettingrusty" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lowks/gettingrusty
[INFO] finished tweaking git repo https://github.com/lowks/gettingrusty
[INFO] tweaked toml for git repo https://github.com/lowks/gettingrusty written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lowks/gettingrusty on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lowks/gettingrusty 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 699be614b42ed27d02b4111922b97f128a3e35bf54b38952c03165f39584f3c4
[INFO] running `Command { std: "docker" "start" "-a" "699be614b42ed27d02b4111922b97f128a3e35bf54b38952c03165f39584f3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "699be614b42ed27d02b4111922b97f128a3e35bf54b38952c03165f39584f3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "699be614b42ed27d02b4111922b97f128a3e35bf54b38952c03165f39584f3c4", kill_on_drop: false }`
[INFO] [stdout] 699be614b42ed27d02b4111922b97f128a3e35bf54b38952c03165f39584f3c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45fb83b86a44589b11995aae2e45a957d737b3870845ba347486c5eab860947e
[INFO] running `Command { std: "docker" "start" "-a" "45fb83b86a44589b11995aae2e45a957d737b3870845ba347486c5eab860947e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling gettingrusty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/main.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |     assert_eq!("HelloWorld", original_string.clone());
[INFO] [stdout]    |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/semicolons.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |             2 * m;
[INFO] [stdout]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |             let _ = 2 * m;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/functional.rs:101:18
[INFO] [stdout]     |
[INFO] [stdout] 101 |           for x in b.iter()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 102 | |             .max() { 
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 101 -         for x in b.iter()
[INFO] [stdout] 101 +         while let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 101 -         for x in b.iter()
[INFO] [stdout] 101 +         if let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/functional.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |           for x in b.iter()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 107 | |             .min() { 
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 106 -         for x in b.iter()
[INFO] [stdout] 106 +         while let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 106 -         for x in b.iter()
[INFO] [stdout] 106 +         if let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "45fb83b86a44589b11995aae2e45a957d737b3870845ba347486c5eab860947e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45fb83b86a44589b11995aae2e45a957d737b3870845ba347486c5eab860947e", kill_on_drop: false }`
[INFO] [stdout] 45fb83b86a44589b11995aae2e45a957d737b3870845ba347486c5eab860947e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8e05d7c6cdaf4ce1f9a8def0e5e821c5c4c339ec944b513e41fc5c4b584af76
[INFO] running `Command { std: "docker" "start" "-a" "b8e05d7c6cdaf4ce1f9a8def0e5e821c5c4c339ec944b513e41fc5c4b584af76", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling gettingrusty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/main.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |     assert_eq!("HelloWorld", original_string.clone());
[INFO] [stdout]    |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/semicolons.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |             2 * m;
[INFO] [stdout]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |             let _ = 2 * m;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/functional.rs:101:18
[INFO] [stdout]     |
[INFO] [stdout] 101 |           for x in b.iter()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 102 | |             .max() { 
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 101 -         for x in b.iter()
[INFO] [stdout] 101 +         while let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 101 -         for x in b.iter()
[INFO] [stdout] 101 +         if let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/functional.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |           for x in b.iter()
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 107 | |             .min() { 
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 106 -         for x in b.iter()
[INFO] [stdout] 106 +         while let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 106 -         for x in b.iter()
[INFO] [stdout] 106 +         if let Some(x) = b.iter()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "b8e05d7c6cdaf4ce1f9a8def0e5e821c5c4c339ec944b513e41fc5c4b584af76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e05d7c6cdaf4ce1f9a8def0e5e821c5c4c339ec944b513e41fc5c4b584af76", kill_on_drop: false }`
[INFO] [stdout] b8e05d7c6cdaf4ce1f9a8def0e5e821c5c4c339ec944b513e41fc5c4b584af76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b9659f41c7ca58cb907d637e603ad12bd9996d8cf3ca81e66e7c2dbd7a03609
[INFO] running `Command { std: "docker" "start" "-a" "5b9659f41c7ca58cb907d637e603ad12bd9996d8cf3ca81e66e7c2dbd7a03609", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/main.rs:32:45
[INFO] [stderr]    |
[INFO] [stderr] 32 |     assert_eq!("HelloWorld", original_string.clone());
[INFO] [stderr]    |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> src/semicolons.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |             2 * m;
[INFO] [stderr]    |             ^^^^^ the arithmetic operation produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 13 |             let _ = 2 * m;
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/functional.rs:101:18
[INFO] [stderr]     |
[INFO] [stderr] 101 |           for x in b.iter()
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 102 | |             .max() { 
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 101 -         for x in b.iter()
[INFO] [stderr] 101 +         while let Some(x) = b.iter()
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 101 -         for x in b.iter()
[INFO] [stderr] 101 +         if let Some(x) = b.iter()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/functional.rs:106:18
[INFO] [stderr]     |
[INFO] [stderr] 106 |           for x in b.iter()
[INFO] [stderr]     |  __________________^
[INFO] [stderr] 107 | |             .min() { 
[INFO] [stderr]     | |__________________^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 106 -         for x in b.iter()
[INFO] [stderr] 106 +         while let Some(x) = b.iter()
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 106 -         for x in b.iter()
[INFO] [stderr] 106 +         if let Some(x) = b.iter()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `gettingrusty` (bin "gettingrusty" test) generated 4 warnings (run `cargo fix --bin "gettingrusty" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/gettingrusty-dbaba3c068cee771)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test matching::test_matching ... ok
[INFO] [stdout] test guard_clause::test_pattern_m ... ok
[INFO] [stdout] test pattern_match::test_pattern_m ... ok
[INFO] [stdout] test functional::test_functional ... ok
[INFO] [stdout] test string::test_push_string ... ok
[INFO] [stdout] test conditionals::test_conditionals ... ok
[INFO] [stdout] test string::test_replace ... ok
[INFO] [stdout] test string::test_string_capacity ... ok
[INFO] [stdout] test semicolons::test_expr ... ok
[INFO] [stdout] test string::test_truncate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b9659f41c7ca58cb907d637e603ad12bd9996d8cf3ca81e66e7c2dbd7a03609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9659f41c7ca58cb907d637e603ad12bd9996d8cf3ca81e66e7c2dbd7a03609", kill_on_drop: false }`
[INFO] [stdout] 5b9659f41c7ca58cb907d637e603ad12bd9996d8cf3ca81e66e7c2dbd7a03609