[INFO] cloning repository https://github.com/mmmpa/rust_lifegame
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmmpa/rust_lifegame" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Frust_lifegame", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Frust_lifegame'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f2f6db58f7463ab520fe75bf09dedef1b2a8413
[INFO] checking mmmpa/rust_lifegame against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Frust_lifegame" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmmpa/rust_lifegame 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/mmmpa/rust_lifegame
[INFO] finished tweaking git repo https://github.com/mmmpa/rust_lifegame
[INFO] tweaked toml for git repo https://github.com/mmmpa/rust_lifegame written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mmmpa/rust_lifegame 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 06e4a5b15965ebf400fd1004863f5b8fd95970cdaa0f7efef91b60c5a08c13ca
[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" "06e4a5b15965ebf400fd1004863f5b8fd95970cdaa0f7efef91b60c5a08c13ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06e4a5b15965ebf400fd1004863f5b8fd95970cdaa0f7efef91b60c5a08c13ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e4a5b15965ebf400fd1004863f5b8fd95970cdaa0f7efef91b60c5a08c13ca", kill_on_drop: false }`
[INFO] [stdout] 06e4a5b15965ebf400fd1004863f5b8fd95970cdaa0f7efef91b60c5a08c13ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f152fe5a92378563a93d541e5a3cc2114737481dc9f005f40e8a231b8ccf0b2d
[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" "f152fe5a92378563a93d541e5a3cc2114737481dc9f005f40e8a231b8ccf0b2d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking lifegame v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:15:94
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_file(filename: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[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/rle.rs:20:92
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_string(body: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn split(raw: String) -> Result<(String, String), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:70:62
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_setting(line: String) -> Result<(usize, usize), Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:15:94
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_file(filename: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[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/rle.rs:20:92
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_string(body: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn split(raw: String) -> Result<(String, String), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:70:62
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_setting(line: String) -> Result<(usize, usize), Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:15:94
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_file(filename: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[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/rle.rs:20:92
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_string(body: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn split(raw: String) -> Result<(String, String), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:70:62
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_setting(line: String) -> Result<(usize, usize), Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:61
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn prepare(game: &Game, delay: u16, output: &String) -> Box<FnMut(Vec<bool>) -> ()> {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Vec<bool>) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:15:94
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_file(filename: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[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/rle.rs:20:92
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from_string(body: &str, margin: usize) -> Result<(usize, usize, Vec<bool>), Box<Error>> {
[INFO] [stdout]    |                                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn split(raw: String) -> Result<(String, String), Box<Error>> {
[INFO] [stdout]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rle.rs:70:62
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_setting(line: String) -> Result<(usize, usize), Box<Error>> {
[INFO] [stdout]    |                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:61
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn prepare(game: &Game, delay: u16, output: &String) -> Box<FnMut(Vec<bool>) -> ()> {
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Vec<bool>) -> ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `work`
[INFO] [stdout]  --> src/benchmark.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn work() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.21s
[INFO] running `Command { std: "docker" "inspect" "f152fe5a92378563a93d541e5a3cc2114737481dc9f005f40e8a231b8ccf0b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f152fe5a92378563a93d541e5a3cc2114737481dc9f005f40e8a231b8ccf0b2d", kill_on_drop: false }`
[INFO] [stdout] f152fe5a92378563a93d541e5a3cc2114737481dc9f005f40e8a231b8ccf0b2d