[INFO] cloning repository https://github.com/mtfcd/tutorialdb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtfcd/tutorialdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtfcd%2Ftutorialdb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtfcd%2Ftutorialdb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf1a6d88c614d90e45116afd8f47a3f97e4fa0cf
[INFO] checking mtfcd/tutorialdb against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtfcd%2Ftutorialdb" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mtfcd/tutorialdb on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mtfcd/tutorialdb
[INFO] finished tweaking git repo https://github.com/mtfcd/tutorialdb
[INFO] tweaked toml for git repo https://github.com/mtfcd/tutorialdb written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mtfcd/tutorialdb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 702449b0b2ca7479c015f28f82038309b617f061de669ef0e4056b03450af876
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "702449b0b2ca7479c015f28f82038309b617f061de669ef0e4056b03450af876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "702449b0b2ca7479c015f28f82038309b617f061de669ef0e4056b03450af876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702449b0b2ca7479c015f28f82038309b617f061de669ef0e4056b03450af876", kill_on_drop: false }`
[INFO] [stdout] 702449b0b2ca7479c015f28f82038309b617f061de669ef0e4056b03450af876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22758c47db0cec0eb0a318cfb8768c50ef086307999821041632bd916f7dc8f4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "22758c47db0cec0eb0a318cfb8768c50ef086307999821041632bd916f7dc8f4", kill_on_drop: false }`
[INFO] [stderr]     Checking tutorialdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `IS_ROOT_OFFSET`
[INFO] [stdout]  --> src/btree.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const IS_ROOT_OFFSET: usize = NODE_TYPE_SIZE;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PARENT_POINTER_OFFSET`
[INFO] [stdout]   --> src/btree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const PARENT_POINTER_OFFSET: usize = IS_ROOT_OFFSET + IS_ROOT_SIZE;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IS_ROOT_OFFSET`
[INFO] [stdout]  --> src/btree.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const IS_ROOT_OFFSET: usize = NODE_TYPE_SIZE;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PARENT_POINTER_OFFSET`
[INFO] [stdout]   --> src/btree.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const PARENT_POINTER_OFFSET: usize = IS_ROOT_OFFSET + IS_ROOT_SIZE;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "22758c47db0cec0eb0a318cfb8768c50ef086307999821041632bd916f7dc8f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22758c47db0cec0eb0a318cfb8768c50ef086307999821041632bd916f7dc8f4", kill_on_drop: false }`
[INFO] [stdout] 22758c47db0cec0eb0a318cfb8768c50ef086307999821041632bd916f7dc8f4