[INFO] cloning repository https://github.com/TheSilvus/buddhabrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheSilvus/buddhabrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSilvus%2Fbuddhabrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSilvus%2Fbuddhabrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfb5613add2f54259f36308137be4b9bc2bbda6c
[INFO] checking TheSilvus/buddhabrot against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheSilvus%2Fbuddhabrot" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheSilvus/buddhabrot on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheSilvus/buddhabrot
[INFO] finished tweaking git repo https://github.com/TheSilvus/buddhabrot
[INFO] tweaked toml for git repo https://github.com/TheSilvus/buddhabrot written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/TheSilvus/buddhabrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7e3733988e0c4d30ba9d8a8e3125a1f6e5479bb4f93f3168a17015cf87aef71
[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" "e7e3733988e0c4d30ba9d8a8e3125a1f6e5479bb4f93f3168a17015cf87aef71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7e3733988e0c4d30ba9d8a8e3125a1f6e5479bb4f93f3168a17015cf87aef71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e3733988e0c4d30ba9d8a8e3125a1f6e5479bb4f93f3168a17015cf87aef71", kill_on_drop: false }`
[INFO] [stdout] e7e3733988e0c4d30ba9d8a8e3125a1f6e5479bb4f93f3168a17015cf87aef71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 208d73cfddc59e7dfdffbf2dad8ae0b2faab447e750ef4069352830105c5188b
[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" "208d73cfddc59e7dfdffbf2dad8ae0b2faab447e750ef4069352830105c5188b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]     Checking libc v0.2.43
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[INFO] [stderr]     Checking mandelbuddha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::OpenOptions`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::OpenOptions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:58:39
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn map_to_image1(&self, map: &Fn(u32, u32) -> u8, color_type: file_image::ColorType) -> Image {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:79:39
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn map_to_image3(&self, map: &Fn(u32, u32) -> [u8; 3], color_type: file_image::ColorType) -> Image {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> [u8; 3]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:99:33
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn map(&mut self, map: &Fn(u32) -> u32) -> &mut ImageData {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32) -> u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/main.rs:399:10
[INFO] [stdout]     |
[INFO] [stdout] 399 | fn image(config: Config) {
[INFO] [stdout]     |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/image.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |         for (i, mut value) in image1.data.iter_mut().enumerate() {
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::OpenOptions`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::OpenOptions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:58:39
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn map_to_image1(&self, map: &Fn(u32, u32) -> u8, color_type: file_image::ColorType) -> Image {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:79:39
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn map_to_image3(&self, map: &Fn(u32, u32) -> [u8; 3], color_type: file_image::ColorType) -> Image {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> [u8; 3]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/image.rs:99:33
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn map(&mut self, map: &Fn(u32) -> u32) -> &mut ImageData {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32) -> u32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/main.rs:399:10
[INFO] [stdout]     |
[INFO] [stdout] 399 | fn image(config: Config) {
[INFO] [stdout]     |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/image.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |         for (i, mut value) in image1.data.iter_mut().enumerate() {
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "208d73cfddc59e7dfdffbf2dad8ae0b2faab447e750ef4069352830105c5188b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "208d73cfddc59e7dfdffbf2dad8ae0b2faab447e750ef4069352830105c5188b", kill_on_drop: false }`
[INFO] [stdout] 208d73cfddc59e7dfdffbf2dad8ae0b2faab447e750ef4069352830105c5188b