[INFO] cloning repository https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBriggsDev%2FCountdown-Numbers-Game-Solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBriggsDev%2FCountdown-Numbers-Game-Solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fec875f9c005a6bd73462f01e56a402791162310
[INFO] building JamieBriggsDev/Countdown-Numbers-Game-Solver against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBriggsDev%2FCountdown-Numbers-Game-Solver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver
[INFO] finished tweaking git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver
[INFO] tweaked toml for git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[INFO] building JamieBriggsDev/Countdown-Numbers-Game-Solver against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamieBriggsDev%2FCountdown-Numbers-Game-Solver" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver
[INFO] finished tweaking git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver
[INFO] tweaked toml for git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JamieBriggsDev/Countdown-Numbers-Game-Solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 948790411fa786855bfbef1355f95f8f409aa2f2d0d44e93b4e396cb0170d3f4
[INFO] running `Command { std: "docker" "start" "-a" "948790411fa786855bfbef1355f95f8f409aa2f2d0d44e93b4e396cb0170d3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "948790411fa786855bfbef1355f95f8f409aa2f2d0d44e93b4e396cb0170d3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948790411fa786855bfbef1355f95f8f409aa2f2d0d44e93b4e396cb0170d3f4", kill_on_drop: false }`
[INFO] [stdout] 948790411fa786855bfbef1355f95f8f409aa2f2d0d44e93b4e396cb0170d3f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149defdfe6b2c755e4e8b81af643e1532881b7cc06da790491a781af82c9a306
[INFO] running `Command { std: "docker" "start" "-a" "149defdfe6b2c755e4e8b81af643e1532881b7cc06da790491a781af82c9a306", kill_on_drop: false }`
[INFO] [stderr]    Compiling Countdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/input.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Multiply` is never constructed
[INFO] [stdout]  --> src/ops.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Multiply;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Divide` is never constructed
[INFO] [stdout]  --> src/ops.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Divide;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DivideByZero` is never constructed
[INFO] [stdout]   --> src/ops.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum CalcError {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     DivideByZero,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CalcError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `classic_operations` is never used
[INFO] [stdout]    --> src/ops.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn classic_operations() -> Vec<Box<dyn Calculation>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "149defdfe6b2c755e4e8b81af643e1532881b7cc06da790491a781af82c9a306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149defdfe6b2c755e4e8b81af643e1532881b7cc06da790491a781af82c9a306", kill_on_drop: false }`
[INFO] [stdout] 149defdfe6b2c755e4e8b81af643e1532881b7cc06da790491a781af82c9a306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0f9545b3169df5a6214ffae1e0d79bde49e19d4addc0276bf582843fdcfe8da
[INFO] running `Command { std: "docker" "start" "-a" "b0f9545b3169df5a6214ffae1e0d79bde49e19d4addc0276bf582843fdcfe8da", kill_on_drop: false }`
[INFO] [stderr]    Compiling Countdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/input.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Multiply` is never constructed
[INFO] [stdout]  --> src/ops.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Multiply;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Divide` is never constructed
[INFO] [stdout]  --> src/ops.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Divide;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DivideByZero` is never constructed
[INFO] [stdout]   --> src/ops.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum CalcError {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     DivideByZero,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CalcError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `classic_operations` is never used
[INFO] [stdout]    --> src/ops.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn classic_operations() -> Vec<Box<dyn Calculation>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "b0f9545b3169df5a6214ffae1e0d79bde49e19d4addc0276bf582843fdcfe8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f9545b3169df5a6214ffae1e0d79bde49e19d4addc0276bf582843fdcfe8da", kill_on_drop: false }`
[INFO] [stdout] b0f9545b3169df5a6214ffae1e0d79bde49e19d4addc0276bf582843fdcfe8da