[INFO] fetching crate cxmr-orderbook 0.0.1...
[INFO] checking cxmr-orderbook-0.0.1 against 1.95.0 for pr-155915
[INFO] extracting crate cxmr-orderbook 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cxmr-orderbook 0.0.1
[INFO] finished tweaking crates.io crate cxmr-orderbook 0.0.1
[INFO] tweaked toml for crates.io crate cxmr-orderbook 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cxmr-orderbook 0.0.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxmr-balances v0.0.1
[INFO] [stderr]   Downloaded cxmr-currency v0.0.1
[INFO] [stderr]   Downloaded err-convert-macro v0.0.1
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded hashbrown v0.1.8
[INFO] [stderr]   Downloaded cxmr-feeds v0.0.1
[INFO] [stderr]   Downloaded cxmr-exchanges v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae9947c032ed27ed61bb23a28fb5e64622c9bc9798e1c1bf75d4c725feb7d75c
[INFO] running `Command { std: "docker" "start" "-a" "ae9947c032ed27ed61bb23a28fb5e64622c9bc9798e1c1bf75d4c725feb7d75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae9947c032ed27ed61bb23a28fb5e64622c9bc9798e1c1bf75d4c725feb7d75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9947c032ed27ed61bb23a28fb5e64622c9bc9798e1c1bf75d4c725feb7d75c", kill_on_drop: false }`
[INFO] [stdout] ae9947c032ed27ed61bb23a28fb5e64622c9bc9798e1c1bf75d4c725feb7d75c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a7d72195f249aba361dff65e0ea69c1d61f254b2ae800869b7c23666736e07c
[INFO] running `Command { std: "docker" "start" "-a" "3a7d72195f249aba361dff65e0ea69c1d61f254b2ae800869b7c23666736e07c", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking err-convert-macro v0.0.1
[INFO] [stderr]     Checking cxmr-balances v0.0.1
[INFO] [stderr]     Checking cxmr-currency v0.0.1
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking cxmr-exchanges v0.0.1
[INFO] [stderr]     Checking cxmr-feeds v0.0.1
[INFO] [stderr]     Checking cxmr-orderbook v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:343:21
[INFO] [stdout]     |
[INFO] [stdout] 343 |                 let mut order = self.0.get_unchecked_mut(index);
[INFO] [stdout]     |                     ----^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxmr-orderbook` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:343:21
[INFO] [stdout]     |
[INFO] [stdout] 343 |                 let mut order = self.0.get_unchecked_mut(index);
[INFO] [stdout]     |                     ----^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxmr-orderbook` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3a7d72195f249aba361dff65e0ea69c1d61f254b2ae800869b7c23666736e07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a7d72195f249aba361dff65e0ea69c1d61f254b2ae800869b7c23666736e07c", kill_on_drop: false }`
[INFO] [stdout] 3a7d72195f249aba361dff65e0ea69c1d61f254b2ae800869b7c23666736e07c
