[INFO] cloning repository https://github.com/cocomoff/open-data-structure-rust-basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cocomoff/open-data-structure-rust-basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcocomoff%2Fopen-data-structure-rust-basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcocomoff%2Fopen-data-structure-rust-basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 047e43c947706f0666b1e0732609a3a4d1854e5c
[INFO] checking cocomoff/open-data-structure-rust-basic against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcocomoff%2Fopen-data-structure-rust-basic" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cocomoff/open-data-structure-rust-basic on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cocomoff/open-data-structure-rust-basic
[INFO] finished tweaking git repo https://github.com/cocomoff/open-data-structure-rust-basic
[INFO] tweaked toml for git repo https://github.com/cocomoff/open-data-structure-rust-basic written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/cocomoff/open-data-structure-rust-basic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a26940e90ff0b452db63d184ba26f3c268a8274df32e27c03b4218918c1e0046
[INFO] running `Command { std: "docker" "start" "-a" "a26940e90ff0b452db63d184ba26f3c268a8274df32e27c03b4218918c1e0046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26940e90ff0b452db63d184ba26f3c268a8274df32e27c03b4218918c1e0046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26940e90ff0b452db63d184ba26f3c268a8274df32e27c03b4218918c1e0046", kill_on_drop: false }`
[INFO] [stdout] a26940e90ff0b452db63d184ba26f3c268a8274df32e27c03b4218918c1e0046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca884a7ad4b8e342c2bdc31d29012aa57af16249f7de1c4b63626d72099013d7
[INFO] running `Command { std: "docker" "start" "-a" "ca884a7ad4b8e342c2bdc31d29012aa57af16249f7de1c4b63626d72099013d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking IntroDS v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `IntroDS` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `intro_ds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `IntroDS` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `intro_ds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.83s
[INFO] running `Command { std: "docker" "inspect" "ca884a7ad4b8e342c2bdc31d29012aa57af16249f7de1c4b63626d72099013d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca884a7ad4b8e342c2bdc31d29012aa57af16249f7de1c4b63626d72099013d7", kill_on_drop: false }`
[INFO] [stdout] ca884a7ad4b8e342c2bdc31d29012aa57af16249f7de1c4b63626d72099013d7