[INFO] cloning repository https://github.com/whossname/basic-db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whossname/basic-db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhossname%2Fbasic-db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhossname%2Fbasic-db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f65503f0404e2c090ef809365bd7ea0b5fb0263e
[INFO] checking whossname/basic-db against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhossname%2Fbasic-db" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whossname/basic-db on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whossname/basic-db
[INFO] finished tweaking git repo https://github.com/whossname/basic-db
[INFO] tweaked toml for git repo https://github.com/whossname/basic-db written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/whossname/basic-db already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded backtrace v0.3.15
[INFO] [stderr]   Downloaded dirs-sys v0.3.4
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded bitflags v1.0.5
[INFO] [stderr]   Downloaded bincode v1.2.1
[INFO] [stderr]   Downloaded num-bigint v0.2.5
[INFO] [stderr]   Downloaded num v0.2.1
[INFO] [stderr]   Downloaded rustyline v6.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded utf8parse v0.1.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded num-iter v0.1.40
[INFO] [stderr]   Downloaded syn v0.15.33
[INFO] [stderr]   Downloaded sysconf v0.3.4
[INFO] [stderr]   Downloaded num-rational v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b7d7245b5eb8008f24fa437d326b8d34b7f2cb4c94aa1d9d5acecfb7ad8a65c
[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" "0b7d7245b5eb8008f24fa437d326b8d34b7f2cb4c94aa1d9d5acecfb7ad8a65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b7d7245b5eb8008f24fa437d326b8d34b7f2cb4c94aa1d9d5acecfb7ad8a65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7d7245b5eb8008f24fa437d326b8d34b7f2cb4c94aa1d9d5acecfb7ad8a65c", kill_on_drop: false }`
[INFO] [stdout] 0b7d7245b5eb8008f24fa437d326b8d34b7f2cb4c94aa1d9d5acecfb7ad8a65c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cafaa672d082c118f3e7be5bdc7f9d4a74def48cb1a3f85b9b54dff5a28c69de
[INFO] running `Command { std: "docker" "start" "-a" "cafaa672d082c118f3e7be5bdc7f9d4a74def48cb1a3f85b9b54dff5a28c69de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking sysconf v0.3.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking basic_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `page_content`
[INFO] [stdout]   --> src/backend/record.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |             page: page_content,
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_content`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interior`
[INFO] [stdout]   --> src/backend/record.rs:52:48
[INFO] [stdout]    |
[INFO] [stdout] 52 |             page_type: PageType::TableInterior(interior),
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interior`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page_content`
[INFO] [stdout]   --> src/backend/record.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |             page: page_content,
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_content`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interior`
[INFO] [stdout]   --> src/backend/record.rs:52:48
[INFO] [stdout]    |
[INFO] [stdout] 52 |             page_type: PageType::TableInterior(interior),
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interior`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page_content`
[INFO] [stdout]    --> src/backend/record.rs:350:19
[INFO] [stdout]     |
[INFO] [stdout] 350 |             page: page_content,
[INFO] [stdout]     |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interior`
[INFO] [stdout]    --> src/backend/record.rs:351:48
[INFO] [stdout]     |
[INFO] [stdout] 351 |             page_type: PageType::TableInterior(interior),
[INFO] [stdout]     |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interior`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page_content`
[INFO] [stdout]    --> src/backend/record.rs:350:19
[INFO] [stdout]     |
[INFO] [stdout] 350 |             page: page_content,
[INFO] [stdout]     |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_page_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interior`
[INFO] [stdout]    --> src/backend/record.rs:351:48
[INFO] [stdout]     |
[INFO] [stdout] 351 |             page_type: PageType::TableInterior(interior),
[INFO] [stdout]     |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interior`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/backend/record.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut page_number = rootpage;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/backend/record.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |     let mut page_number = rootpage;
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/repl.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             sql::parse(&line);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/repl.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             sql::parse(&line);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.72s
[INFO] running `Command { std: "docker" "inspect" "cafaa672d082c118f3e7be5bdc7f9d4a74def48cb1a3f85b9b54dff5a28c69de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cafaa672d082c118f3e7be5bdc7f9d4a74def48cb1a3f85b9b54dff5a28c69de", kill_on_drop: false }`
[INFO] [stdout] cafaa672d082c118f3e7be5bdc7f9d4a74def48cb1a3f85b9b54dff5a28c69de