[INFO] cloning repository https://github.com/CohenArthur/ft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CohenArthur/ft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCohenArthur%2Fft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCohenArthur%2Fft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33e6c435b0f69eeb769c9e9a082f973bfe2ede58
[INFO] checking CohenArthur/ft against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCohenArthur%2Fft" "/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/CohenArthur/ft on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CohenArthur/ft
[INFO] finished tweaking git repo https://github.com/CohenArthur/ft
[INFO] tweaked toml for git repo https://github.com/CohenArthur/ft written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/CohenArthur/ft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74ae912109e50a21b9e9d1e251379aa64d0ffc22e6d9a7aaa8783991aa397786
[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" "74ae912109e50a21b9e9d1e251379aa64d0ffc22e6d9a7aaa8783991aa397786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74ae912109e50a21b9e9d1e251379aa64d0ffc22e6d9a7aaa8783991aa397786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ae912109e50a21b9e9d1e251379aa64d0ffc22e6d9a7aaa8783991aa397786", kill_on_drop: false }`
[INFO] [stdout] 74ae912109e50a21b9e9d1e251379aa64d0ffc22e6d9a7aaa8783991aa397786
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6456e4740408033b369fc392a7b813913ccc0a6bf9c8097d5ce34682099e724f
[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" "6456e4740408033b369fc392a7b813913ccc0a6bf9c8097d5ce34682099e724f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking ft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `scheduler`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let scheduler = Scheduler::from_args(&args);
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scheduler`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scheduler`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let scheduler = Scheduler::from_args(&args);
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scheduler`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `binary`
[INFO] [stdout]  --> src/launcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     binary: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]   --> src/launcher.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     args: Option<Vec<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timeout`
[INFO] [stdout]   --> src/launcher.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timeout: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/launcher.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn run() -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/output.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(exit_code: u8, stdout: String, stderr: String, time: Duration) -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `launchers`
[INFO] [stdout]   --> src/scheduler.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     launchers: Vec<Launcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/scheduler.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn run(&self) -> Vec<Output> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `binary`
[INFO] [stdout]  --> src/launcher.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     binary: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `args`
[INFO] [stdout]   --> src/launcher.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     args: Option<Vec<String>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timeout`
[INFO] [stdout]   --> src/launcher.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     timeout: Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/launcher.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn run() -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/output.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(exit_code: u8, stdout: String, stderr: String, time: Duration) -> Output {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `launchers`
[INFO] [stdout]   --> src/scheduler.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     launchers: Vec<Launcher>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/scheduler.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn run(&self) -> Vec<Output> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.02s
[INFO] running `Command { std: "docker" "inspect" "6456e4740408033b369fc392a7b813913ccc0a6bf9c8097d5ce34682099e724f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6456e4740408033b369fc392a7b813913ccc0a6bf9c8097d5ce34682099e724f", kill_on_drop: false }`
[INFO] [stdout] 6456e4740408033b369fc392a7b813913ccc0a6bf9c8097d5ce34682099e724f