[INFO] cloning repository https://github.com/dhruvkjain/orderbook-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhruvkjain/orderbook-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Forderbook-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Forderbook-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be29ef5e045428ce58f3457ca768fab1eab27a61
[INFO] checking dhruvkjain/orderbook-rs against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Forderbook-rs" "/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/dhruvkjain/orderbook-rs
[INFO] finished tweaking git repo https://github.com/dhruvkjain/orderbook-rs
[INFO] tweaked toml for git repo https://github.com/dhruvkjain/orderbook-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dhruvkjain/orderbook-rs on toolchain 3c75d5844aa65b4aa19243ac44ceda49fe4e61ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dhruvkjain/orderbook-rs 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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce3264673e21a7e2bffe52d352f847ef5dbe5e062ce761ac74daafdebf3db79c
[INFO] running `Command { std: "docker" "start" "-a" "ce3264673e21a7e2bffe52d352f847ef5dbe5e062ce761ac74daafdebf3db79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce3264673e21a7e2bffe52d352f847ef5dbe5e062ce761ac74daafdebf3db79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce3264673e21a7e2bffe52d352f847ef5dbe5e062ce761ac74daafdebf3db79c", kill_on_drop: false }`
[INFO] [stdout] ce3264673e21a7e2bffe52d352f847ef5dbe5e062ce761ac74daafdebf3db79c
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7182e05757fa1dda99096683566ad001a75d0149b13390dae509f8e1c791488
[INFO] running `Command { std: "docker" "start" "-a" "b7182e05757fa1dda99096683566ad001a75d0149b13390dae509f8e1c791488", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking ordered-float v5.0.0
[INFO] [stderr]     Checking orderbook-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `should_cancel` is never read
[INFO] [stdout]   --> src/orderbook.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut should_cancel = false;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_id` is never read
[INFO] [stdout]   --> src/orderbook.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let mut order_id = 0;
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_cancel` is never read
[INFO] [stdout]    --> src/orderbook.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut should_cancel = false;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_id` is never read
[INFO] [stdout]    --> src/orderbook.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let mut order_id = 0;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_index` is never read
[INFO] [stdout]    --> src/orderbook.rs:284:17
[INFO] [stdout]     |
[INFO] [stdout] 284 |         let mut order_index:usize = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_cancel` is never read
[INFO] [stdout]   --> src/orderbook.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut should_cancel = false;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_id` is never read
[INFO] [stdout]   --> src/orderbook.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let mut order_id = 0;
[INFO] [stdout]    |                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_cancel` is never read
[INFO] [stdout]    --> src/orderbook.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut should_cancel = false;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_id` is never read
[INFO] [stdout]    --> src/orderbook.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let mut order_id = 0;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `order_index` is never read
[INFO] [stdout]    --> src/orderbook.rs:284:17
[INFO] [stdout]     |
[INFO] [stdout] 284 |         let mut order_index:usize = 0;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "b7182e05757fa1dda99096683566ad001a75d0149b13390dae509f8e1c791488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7182e05757fa1dda99096683566ad001a75d0149b13390dae509f8e1c791488", kill_on_drop: false }`
[INFO] [stdout] b7182e05757fa1dda99096683566ad001a75d0149b13390dae509f8e1c791488