[INFO] cloning repository https://github.com/lochbrunner/rust-hacks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lochbrunner/rust-hacks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flochbrunner%2Frust-hacks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flochbrunner%2Frust-hacks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04a14e80469215a2b365dd3d60ca86a6520cd2ad
[INFO] checking lochbrunner/rust-hacks against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flochbrunner%2Frust-hacks" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lochbrunner/rust-hacks 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/lochbrunner/rust-hacks
[INFO] finished tweaking git repo https://github.com/lochbrunner/rust-hacks
[INFO] tweaked toml for git repo https://github.com/lochbrunner/rust-hacks written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/lochbrunner/rust-hacks 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1523a67b8f5e5ec792926bdff7b548458748b85b98ebbdf443b5d37acd0c5487
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1523a67b8f5e5ec792926bdff7b548458748b85b98ebbdf443b5d37acd0c5487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1523a67b8f5e5ec792926bdff7b548458748b85b98ebbdf443b5d37acd0c5487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1523a67b8f5e5ec792926bdff7b548458748b85b98ebbdf443b5d37acd0c5487", kill_on_drop: false }`
[INFO] [stdout] 1523a67b8f5e5ec792926bdff7b548458748b85b98ebbdf443b5d37acd0c5487
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] cac6441a4f6729eacb87058e2dc819b4e451f70a87c554f1a4fb8b0de909f9a3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cac6441a4f6729eacb87058e2dc819b4e451f70a87c554f1a4fb8b0de909f9a3", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust-hacks v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/move_in_map.rs (2 fixes)
[INFO] [stderr]        Fixed src/count_calls.rs (1 fix)
[INFO] [stderr]        Fixed src/sample_map.rs (3 fixes)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cross_join.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(left_iter: L, samples: &'a [R]) -> CrossJoin<'a, R, L> {
[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: `new`
[INFO] [stdout]   --> src/sample_map.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub(super) fn new(iter: I, f: F, s: &'a [S]) -> SampleMap<'a, I, F, S> {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `P`
[INFO] [stdout]   --> src/sample_map.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | type P<S> = dyn FnMut() -> S;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `P`
[INFO] [stdout]   --> src/sample_map.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | type P<S> = dyn FnMut() -> S;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Map` that must be used
[INFO] [stdout]    --> src/cross_join.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         input.iter().map(|s| s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking rust-hacks v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cross_join.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(left_iter: L, samples: &'a [R]) -> CrossJoin<'a, R, L> {
[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: `new`
[INFO] [stdout]   --> src/sample_map.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub(super) fn new(iter: I, f: F, s: &'a [S]) -> SampleMap<'a, I, F, S> {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `P`
[INFO] [stdout]   --> src/sample_map.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | type P<S> = dyn FnMut() -> S;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `P`
[INFO] [stdout]   --> src/sample_map.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | type P<S> = dyn FnMut() -> S;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Map` that must be used
[INFO] [stdout]    --> src/cross_join.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         input.iter().map(|s| s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "cac6441a4f6729eacb87058e2dc819b4e451f70a87c554f1a4fb8b0de909f9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac6441a4f6729eacb87058e2dc819b4e451f70a87c554f1a4fb8b0de909f9a3", kill_on_drop: false }`
[INFO] [stdout] cac6441a4f6729eacb87058e2dc819b4e451f70a87c554f1a4fb8b0de909f9a3