[INFO] cloning repository https://github.com/simonvandel/fcbf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonvandel/fcbf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08439f0dc2e4d00fb8a3d6391842d47cdfe54178
[INFO] building simonvandel/fcbf against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonvandel/fcbf on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simonvandel/fcbf
[INFO] finished tweaking git repo https://github.com/simonvandel/fcbf
[INFO] tweaked toml for git repo https://github.com/simonvandel/fcbf written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/simonvandel/fcbf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded float-cmp v0.4.0
[INFO] [stderr]   Downloaded env_logger v0.5.9
[INFO] [stderr]   Downloaded serde v1.0.45
[INFO] [stderr]   Downloaded noisy_float v0.1.4
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded csv v1.0.0-beta.5
[INFO] [stderr]   Downloaded ndarray v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ed5400d3212b042422a6157834536c93203e76cc2710160989fc6f18c1205c3
[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" "4ed5400d3212b042422a6157834536c93203e76cc2710160989fc6f18c1205c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed5400d3212b042422a6157834536c93203e76cc2710160989fc6f18c1205c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed5400d3212b042422a6157834536c93203e76cc2710160989fc6f18c1205c3", kill_on_drop: false }`
[INFO] [stdout] 4ed5400d3212b042422a6157834536c93203e76cc2710160989fc6f18c1205c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7334f4c09e5184a0427b09bad98d773abe432c558def35f853ef002af7442f9
[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" "f7334f4c09e5184a0427b09bad98d773abe432c558def35f853ef002af7442f9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling noisy_float v0.1.4
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling csv v1.0.0-beta.5
[INFO] [stderr]    Compiling fcbf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cacher`
[INFO] [stdout]   --> src/main.rs:31:37
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn symmetric_uncertainty_cached<'a>(cacher: &mut MyCacher, x: &'a Col<'a>, y: &'a Col<'a>) -> ValueType {
[INFO] [stdout]    |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cacher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `x` does not live long enough
[INFO] [stdout]    --> src/main.rs:106:26
[INFO] [stdout]     |
[INFO] [stdout] 91  |   pub fn fcbf<'x>(
[INFO] [stdout]     |               -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 106 |       let cols: Vec<Col> = x.gencolumns()
[INFO] [stdout]     |                            ^ borrowed value does not live long enough
[INFO] [stdout] ...
[INFO] [stdout] 110 | /         Col {
[INFO] [stdout] 111 | |             idx,
[INFO] [stdout] 112 | |             values: f_i,
[INFO] [stdout] 113 | |         }}).collect();
[INFO] [stdout]     | |_________- returning this value requires that `x` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 172 |   }
[INFO] [stdout]     |    - `x` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `c` does not live long enough
[INFO] [stdout]    --> src/main.rs:118:64
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 118 |         let su_i_c = symmetric_uncertainty_cached(&mut cacher, &c, &f_y);
[INFO] [stdout]     |                      ------------------------------------------^^-------
[INFO] [stdout]     |                      |                                         |
[INFO] [stdout]     |                      |                                         borrowed value does not live long enough
[INFO] [stdout]     |                      argument requires that `c` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 122 |     }
[INFO] [stdout]     |     - `c` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `f_y` does not live long enough
[INFO] [stdout]    --> src/main.rs:118:68
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 118 |         let su_i_c = symmetric_uncertainty_cached(&mut cacher, &c, &f_y);
[INFO] [stdout]     |                      ----------------------------------------------^^^^-
[INFO] [stdout]     |                      |                                             |
[INFO] [stdout]     |                      |                                             borrowed value does not live long enough
[INFO] [stdout]     |                      argument requires that `f_y` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 172 | }
[INFO] [stdout]     | - `f_y` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0505]: cannot move out of `c` because it is borrowed
[INFO] [stdout]    --> src/main.rs:120:38
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 118 |         let su_i_c = symmetric_uncertainty_cached(&mut cacher, &c, &f_y);
[INFO] [stdout]     |                      ---------------------------------------------------
[INFO] [stdout]     |                      |                                         |
[INFO] [stdout]     |                      |                                         borrow of `c` occurs here
[INFO] [stdout]     |                      argument requires that `c` is borrowed for `'x`
[INFO] [stdout] 119 |         if su_i_c >= threshold {
[INFO] [stdout] 120 |             s_list.push(Feature{col: c, su_target: su_i_c});
[INFO] [stdout]     |                                      ^ move out of `c` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `s_list` does not live long enough
[INFO] [stdout]    --> src/main.rs:130:27
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 130 |     while let Some(f_p) = s_list.get(cur_feature_idx) {
[INFO] [stdout]     |                           ^^^^^^---------------------
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           borrowed value does not live long enough
[INFO] [stdout]     |                           argument requires that `s_list` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 172 | }
[INFO] [stdout]     | - `s_list` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `s_list` does not live long enough
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 132 |         let unexplored = s_list.iter().skip(cur_feature_idx + 1).filter(|f_q| {
[INFO] [stdout]     |                          ^^^^^^-------
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          borrowed value does not live long enough
[INFO] [stdout]     |                          argument requires that `s_list` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 172 | }
[INFO] [stdout]     | - `s_list` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `f_y` does not live long enough
[INFO] [stdout]    --> src/main.rs:138:86
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 132 |         let unexplored = s_list.iter().skip(cur_feature_idx + 1).filter(|f_q| {
[INFO] [stdout]     |                                                                         ----- value captured here
[INFO] [stdout] ...
[INFO] [stdout] 138 |             let f_q_su_target = symmetric_uncertainty_cached(&mut cacher, &f_q.col, &f_y);
[INFO] [stdout]     |                                 -----------------------------------------------------^^^-
[INFO] [stdout]     |                                 |                                                    |
[INFO] [stdout]     |                                 |                                                    borrowed value does not live long enough
[INFO] [stdout]     |                                 argument requires that `f_y` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 172 | }
[INFO] [stdout]     | - `f_y` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0506]: cannot assign to `s_list` because it is borrowed
[INFO] [stdout]     --> src/main.rs:153:9
[INFO] [stdout]      |
[INFO] [stdout] 91   | pub fn fcbf<'x>(
[INFO] [stdout]      |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 130  |     while let Some(f_p) = s_list.get(cur_feature_idx) {
[INFO] [stdout]      |                           ---------------------------
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           borrow of `s_list` occurs here
[INFO] [stdout]      |                           argument requires that `s_list` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 153  |         s_list = new_s_list.clone();
[INFO] [stdout]      |         ^^^^^^ assignment to borrowed `s_list` occurs here
[INFO] [stdout]      |
[INFO] [stdout]      = note: borrow occurs due to deref coercion to `[Feature]`
[INFO] [stdout] note: deref defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `s_list` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/main.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 91  | pub fn fcbf<'x>(
[INFO] [stdout]     |             -- lifetime `'x` defined here
[INFO] [stdout] ...
[INFO] [stdout] 130 |     while let Some(f_p) = s_list.get(cur_feature_idx) {
[INFO] [stdout]     |                           ---------------------------
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           immutable borrow occurs here
[INFO] [stdout]     |                           argument requires that `s_list` is borrowed for `'x`
[INFO] [stdout] ...
[INFO] [stdout] 159 |     s_list.sort_by(|a, b| {
[INFO] [stdout]     |     ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0502, E0505, E0506, E0597.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fcbf`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f7334f4c09e5184a0427b09bad98d773abe432c558def35f853ef002af7442f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7334f4c09e5184a0427b09bad98d773abe432c558def35f853ef002af7442f9", kill_on_drop: false }`
[INFO] [stdout] f7334f4c09e5184a0427b09bad98d773abe432c558def35f853ef002af7442f9
