[INFO] cloning repository https://github.com/diohabara/obs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diohabara/obs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiohabara%2Fobs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiohabara%2Fobs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1fa7b208ee5810c910935135da3e4370f8dffc4c
[INFO] checking diohabara/obs against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiohabara%2Fobs" "/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/diohabara/obs on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/diohabara/obs
[INFO] finished tweaking git repo https://github.com/diohabara/obs
[INFO] tweaked toml for git repo https://github.com/diohabara/obs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/diohabara/obs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df16c06d5c61c5e1533ea63b070e95bb8bb6b41f1d6cf50a46852af37da0001b
[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" "df16c06d5c61c5e1533ea63b070e95bb8bb6b41f1d6cf50a46852af37da0001b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df16c06d5c61c5e1533ea63b070e95bb8bb6b41f1d6cf50a46852af37da0001b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df16c06d5c61c5e1533ea63b070e95bb8bb6b41f1d6cf50a46852af37da0001b", kill_on_drop: false }`
[INFO] [stdout] df16c06d5c61c5e1533ea63b070e95bb8bb6b41f1d6cf50a46852af37da0001b
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c68db0e2d06e7cc4677cbec2921451dfbb19f8681d2fd377be7c138be04bbbc6
[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" "c68db0e2d06e7cc4677cbec2921451dfbb19f8681d2fd377be7c138be04bbbc6", kill_on_drop: false }`
[INFO] [stderr]     Checking ods v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cmp`, `iter`
[INFO] [stdout]  --> src/rootish_array_stack.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp, iter};
[INFO] [stdout]   |           ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `iter`
[INFO] [stdout]  --> src/rootish_array_stack.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp, iter};
[INFO] [stdout]   |           ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/rootish_array_stack.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn add(&mut self, i: usize, x: T) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/rootish_array_stack.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn add(&mut self, i: usize, x: T) {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/rootish_array_stack.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn remove(&mut self, i: usize) -> Option<T> {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/rootish_array_stack.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn add(&mut self, i: usize, x: T) {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/rootish_array_stack.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn add(&mut self, i: usize, x: T) {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/rootish_array_stack.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn remove(&mut self, i: usize) -> Option<T> {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c68db0e2d06e7cc4677cbec2921451dfbb19f8681d2fd377be7c138be04bbbc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68db0e2d06e7cc4677cbec2921451dfbb19f8681d2fd377be7c138be04bbbc6", kill_on_drop: false }`
[INFO] [stdout] c68db0e2d06e7cc4677cbec2921451dfbb19f8681d2fd377be7c138be04bbbc6