[INFO] cloning repository https://github.com/beltegeuse/progressive-multijittered
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beltegeuse/progressive-multijittered" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeltegeuse%2Fprogressive-multijittered", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeltegeuse%2Fprogressive-multijittered'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9e8e1682faed186923567955670a59d130fb9fe
[INFO] checking beltegeuse/progressive-multijittered against master#485ec3fbcc12fa14ef6596dabb125ad710499c9e for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeltegeuse%2Fprogressive-multijittered" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beltegeuse/progressive-multijittered
[INFO] finished tweaking git repo https://github.com/beltegeuse/progressive-multijittered
[INFO] tweaked toml for git repo https://github.com/beltegeuse/progressive-multijittered written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beltegeuse/progressive-multijittered on toolchain 485ec3fbcc12fa14ef6596dabb125ad710499c9e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beltegeuse/progressive-multijittered 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" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] [stderr]   Downloaded gnuplot v0.0.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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] ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5
[INFO] running `Command { std: "docker" "start" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5", 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" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5", 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=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking gnuplot v0.0.31
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking seq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |             (self.seq[self.index - 1])
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 273 -             (self.seq[self.index - 1])
[INFO] [stdout] 273 +             self.seq[self.index - 1] 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |             (self.seq[self.index - 1])
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 357 -             (self.seq[self.index - 1])
[INFO] [stdout] 357 +             self.seq[self.index - 1] 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |             (self.seq[self.index - 1])
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 273 -             (self.seq[self.index - 1])
[INFO] [stdout] 273 +             self.seq[self.index - 1] 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:357:13
[INFO] [stdout]     |
[INFO] [stdout] 357 |             (self.seq[self.index - 1])
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 357 -             (self.seq[self.index - 1])
[INFO] [stdout] 357 +             self.seq[self.index - 1] 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:46:39
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut functions: Vec<(&str, Box<Generator>, Vec<(f64, f64)>)> = vec![
[INFO] [stdout]    |                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut functions: Vec<(&str, Box<dyn Generator>, Vec<(f64, f64)>)> = vec![
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:46:39
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut functions: Vec<(&str, Box<Generator>, Vec<(f64, f64)>)> = vec![
[INFO] [stdout]    |                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut functions: Vec<(&str, Box<dyn Generator>, Vec<(f64, f64)>)> = vec![
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5", kill_on_drop: false }`
[INFO] [stdout] ebf01c32ff1e068c8bf21b85db527f69d4079a85e6dac1ace251d4cd94e503f5
