[INFO] cloning repository https://github.com/SHoltzen/rs-perm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SHoltzen/rs-perm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70a9c857f2bc023e2bdae27c9cfafcd2d239c21f
[INFO] building SHoltzen/rs-perm against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSHoltzen%2Frs-perm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SHoltzen/rs-perm on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SHoltzen/rs-perm
[INFO] finished tweaking git repo https://github.com/SHoltzen/rs-perm
[INFO] tweaked toml for git repo https://github.com/SHoltzen/rs-perm written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SHoltzen/rs-perm 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41a5b850eb7c37fd10941680229850ab1a7f3c3e8c476428ef8a838e13c66606
[INFO] running `Command { std: "docker" "start" "-a" "41a5b850eb7c37fd10941680229850ab1a7f3c3e8c476428ef8a838e13c66606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41a5b850eb7c37fd10941680229850ab1a7f3c3e8c476428ef8a838e13c66606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a5b850eb7c37fd10941680229850ab1a7f3c3e8c476428ef8a838e13c66606", kill_on_drop: false }`
[INFO] [stdout] 41a5b850eb7c37fd10941680229850ab1a7f3c3e8c476428ef8a838e13c66606
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f3e80687c22c6613a93c8c8745485ca5102c41b6ae56e6e64399224603ffb5
[INFO] running `Command { std: "docker" "start" "-a" "12f3e80687c22c6613a93c8c8745485ca5102c41b6ae56e6e64399224603ffb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rs-perm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `perm::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use perm::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/group.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GroupRNG {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     id: Perm,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `g` and `base` are never read
[INFO] [stdout]   --> src/group.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct StabView<'a> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 71 |     g: Vec<&'a Perm>,
[INFO] [stdout]    |     ^
[INFO] [stdout] 72 |     /// the set of stabilized points
[INFO] [stdout] 73 |     base: Vec<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StabView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_gen` is never used
[INFO] [stdout]    --> src/group.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 80  | impl<'a> StabView<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn add_gen(&mut self, g: &'a Perm) -> () {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `chooseR` should have a snake case name
[INFO] [stdout]   --> src/group.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let chooseR : bool = self.rng.gen_bool(0.5);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `choose_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "12f3e80687c22c6613a93c8c8745485ca5102c41b6ae56e6e64399224603ffb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f3e80687c22c6613a93c8c8745485ca5102c41b6ae56e6e64399224603ffb5", kill_on_drop: false }`
[INFO] [stdout] 12f3e80687c22c6613a93c8c8745485ca5102c41b6ae56e6e64399224603ffb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06c8e35422df9ebcfbecc0d057291ce5d0ab29cd116b225d630854c09904cb8f
[INFO] running `Command { std: "docker" "start" "-a" "06c8e35422df9ebcfbecc0d057291ce5d0ab29cd116b225d630854c09904cb8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-perm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `perm::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use perm::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/group.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct GroupRNG {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     id: Perm,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `g` and `base` are never read
[INFO] [stdout]   --> src/group.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct StabView<'a> {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 71 |     g: Vec<&'a Perm>,
[INFO] [stdout]    |     ^
[INFO] [stdout] 72 |     /// the set of stabilized points
[INFO] [stdout] 73 |     base: Vec<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StabView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_gen` is never used
[INFO] [stdout]    --> src/group.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 80  | impl<'a> StabView<'a> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn add_gen(&mut self, g: &'a Perm) -> () {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `chooseR` should have a snake case name
[INFO] [stdout]   --> src/group.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let chooseR : bool = self.rng.gen_bool(0.5);
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `choose_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "06c8e35422df9ebcfbecc0d057291ce5d0ab29cd116b225d630854c09904cb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c8e35422df9ebcfbecc0d057291ce5d0ab29cd116b225d630854c09904cb8f", kill_on_drop: false }`
[INFO] [stdout] 06c8e35422df9ebcfbecc0d057291ce5d0ab29cd116b225d630854c09904cb8f