[INFO] cloning repository https://github.com/koba-e964/rusthon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koba-e964/rusthon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frusthon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frusthon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f17f55af8ce110a5c303135797e4458bed7693d7
[INFO] checking koba-e964/rusthon against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoba-e964%2Frusthon" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/koba-e964/rusthon on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/koba-e964/rusthon
[INFO] finished tweaking git repo https://github.com/koba-e964/rusthon
[INFO] tweaked toml for git repo https://github.com/koba-e964/rusthon written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/koba-e964/rusthon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 19a21de3cb1fc98e8535a22c0441914b4acd1f3de3adb130c2f9c5a082a80220
[INFO] running `Command { std: "docker" "start" "-a" "19a21de3cb1fc98e8535a22c0441914b4acd1f3de3adb130c2f9c5a082a80220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19a21de3cb1fc98e8535a22c0441914b4acd1f3de3adb130c2f9c5a082a80220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19a21de3cb1fc98e8535a22c0441914b4acd1f3de3adb130c2f9c5a082a80220", kill_on_drop: false }`
[INFO] [stdout] 19a21de3cb1fc98e8535a22c0441914b4acd1f3de3adb130c2f9c5a082a80220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7fa58d446fc2f8b81090bf8ed0f5a0fc393e779b3878a5a4eb3b31e2aca56d61
[INFO] running `Command { std: "docker" "start" "-a" "7fa58d446fc2f8b81090bf8ed0f5a0fc393e779b3878a5a4eb3b31e2aca56d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking rusthon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solver.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / macro_rules! read_value {
[INFO] [stdout] 34 | |     ($next:expr, ( $($t:tt),* )) => {
[INFO] [stdout] 35 | |         ( $(read_value!($next, $t)),* )
[INFO] [stdout] 36 | |     };
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     };
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solver.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / macro_rules! debug {
[INFO] [stdout] 63 | |     ($($format:tt)*) => (
[INFO] [stdout] 64 | |         if DEBUG {
[INFO] [stdout] 65 | |             writeln!(std::io::stderr(), $($format)*).unwrap();
[INFO] [stdout] 66 | |         });
[INFO] [stdout] 67 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/solver.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEBUG`
[INFO] [stdout]   --> src/solver.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | const DEBUG: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solver.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / macro_rules! read_value {
[INFO] [stdout] 34 | |     ($next:expr, ( $($t:tt),* )) => {
[INFO] [stdout] 35 | |         ( $(read_value!($next, $t)),* )
[INFO] [stdout] 36 | |     };
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |     };
[INFO] [stdout] 58 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solver.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / macro_rules! debug {
[INFO] [stdout] 63 | |     ($($format:tt)*) => (
[INFO] [stdout] 64 | |         if DEBUG {
[INFO] [stdout] 65 | |             writeln!(std::io::stderr(), $($format)*).unwrap();
[INFO] [stdout] 66 | |         });
[INFO] [stdout] 67 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/solver.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |                          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEBUG`
[INFO] [stdout]   --> src/solver.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | const DEBUG: bool = true;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn gen<R: Rng>(rng: &mut R) -> Instance {
[INFO] [stdout]   |                ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst`
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let inst = gen(&mut rng);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_inst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]  --> src/main.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn gen<R: Rng>(rng: &mut R) -> Instance {
[INFO] [stdout]   |                ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inst`
[INFO] [stdout]   --> src/main.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let inst = gen(&mut rng);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_inst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "7fa58d446fc2f8b81090bf8ed0f5a0fc393e779b3878a5a4eb3b31e2aca56d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa58d446fc2f8b81090bf8ed0f5a0fc393e779b3878a5a4eb3b31e2aca56d61", kill_on_drop: false }`
[INFO] [stdout] 7fa58d446fc2f8b81090bf8ed0f5a0fc393e779b3878a5a4eb3b31e2aca56d61