[INFO] cloning repository https://github.com/tkmct/db_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkmct/db_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkmct%2Fdb_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkmct%2Fdb_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51eb3b4bef9a58bb57422533521fb17bf685adf1
[INFO] testing tkmct/db_tutorial against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkmct%2Fdb_tutorial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tkmct/db_tutorial
[INFO] finished tweaking git repo https://github.com/tkmct/db_tutorial
[INFO] tweaked toml for git repo https://github.com/tkmct/db_tutorial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tkmct/db_tutorial on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tkmct/db_tutorial 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 564fb7a247f270e3276de92b70489bfecc4e78a9e3cc9370e3334cbc62d8478c
[INFO] running `Command { std: "docker" "start" "-a" "564fb7a247f270e3276de92b70489bfecc4e78a9e3cc9370e3334cbc62d8478c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "564fb7a247f270e3276de92b70489bfecc4e78a9e3cc9370e3334cbc62d8478c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564fb7a247f270e3276de92b70489bfecc4e78a9e3cc9370e3334cbc62d8478c", kill_on_drop: false }`
[INFO] [stdout] 564fb7a247f270e3276de92b70489bfecc4e78a9e3cc9370e3334cbc62d8478c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a4ae0cdd1db105e5eb41e00157ef170c0a6c07c1ffbd6200e0330e43badcace
[INFO] running `Command { std: "docker" "start" "-a" "7a4ae0cdd1db105e5eb41e00157ef170c0a6c07c1ffbd6200e0330e43badcace", kill_on_drop: false }`
[INFO] [stderr]    Compiling db_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/btree.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stdout]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stdout]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/btree.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `table_end` is never used
[INFO] [stdout]   --> src/table.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Table {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stdout]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stdout]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "7a4ae0cdd1db105e5eb41e00157ef170c0a6c07c1ffbd6200e0330e43badcace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4ae0cdd1db105e5eb41e00157ef170c0a6c07c1ffbd6200e0330e43badcace", kill_on_drop: false }`
[INFO] [stdout] 7a4ae0cdd1db105e5eb41e00157ef170c0a6c07c1ffbd6200e0330e43badcace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 813aed7f93d5237e2b9b6dda7f8fed2c0811be0b1d9fdf30668cc3b7a4906f69
[INFO] running `Command { std: "docker" "start" "-a" "813aed7f93d5237e2b9b6dda7f8fed2c0811be0b1d9fdf30668cc3b7a4906f69", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/btree.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling db_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stdout]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stdout]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/btree.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/btree.rs:116:34
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stdout]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `table_end` is never used
[INFO] [stdout]   --> src/table.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Table {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stdout]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stdout]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stdout]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stdout]    |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stdout]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/table.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stdout]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "813aed7f93d5237e2b9b6dda7f8fed2c0811be0b1d9fdf30668cc3b7a4906f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813aed7f93d5237e2b9b6dda7f8fed2c0811be0b1d9fdf30668cc3b7a4906f69", kill_on_drop: false }`
[INFO] [stdout] 813aed7f93d5237e2b9b6dda7f8fed2c0811be0b1d9fdf30668cc3b7a4906f69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 14bcc6258983d0f0cc42dcf3ca8f3b8371054f56a7fa0687b89ae310d3ede073
[INFO] running `Command { std: "docker" "start" "-a" "14bcc6258983d0f0cc42dcf3ca8f3b8371054f56a7fa0687b89ae310d3ede073", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/btree.rs:116:34
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn key_duplicated(&self, key: Key) -> bool {
[INFO] [stderr]     |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/table.rs:32:24
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn table_start(&mut self) -> Cursor {
[INFO] [stderr]    |                        ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn table_start(&mut self) -> Cursor<'_> {
[INFO] [stderr]    |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/table.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stderr]    |                      ^^^^^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn table_end(&mut self) -> Cursor<'_> {
[INFO] [stderr]    |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/table.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor {
[INFO] [stderr]    |                       ^^^^^^^^^               ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn table_find(&mut self, key: u32) -> Cursor<'_> {
[INFO] [stderr]    |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/table.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor {
[INFO] [stderr]    |                           ^^^^^^^^^ the lifetime is elided here    ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn leaf_node_find(&mut self, page_num: usize, key: u32) -> Cursor<'_> {
[INFO] [stderr]    |                                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `db_tutorial` (lib) generated 5 warnings (run `cargo fix --lib -p db_tutorial` to apply 5 suggestions)
[INFO] [stderr] warning: method `table_end` is never used
[INFO] [stderr]   --> src/table.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl Table {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 39 |     pub fn table_end(&mut self) -> Cursor {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `db_tutorial` (bin "db_tutorial" test) generated 6 warnings (5 duplicates)
[INFO] [stderr] warning: `db_tutorial` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/db_tutorial-b5b6fa5799f244bd)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test btree::tests::test_serialize_and_deserialize ... ok
[INFO] [stdout] test row::tests::test_serialize_row ... ok
[INFO] [stdout] test statement::tests::test_insert_fails_with_too_long_string ... ok
[INFO] [stdout] test statement::tests::test_insert_should_sort_keys ... FAILED
[INFO] [stdout] test statement::tests::test_insert_then_select ... FAILED
[INFO] [stdout] test statement::tests::test_insert_with_max_input_length ... FAILED
[INFO] [stdout] test row::tests::test_serialize_length ... ok
[INFO] [stdout] test statement::tests::test_persistence ... ignored
[INFO] [stdout] test btree::tests::test_serialize_to_page ... ok
[INFO] [stdout] test statement::tests::test_table_is_full ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test statement::tests::test_reject_duplicate_key ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- statement::tests::test_insert_should_sort_keys stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- statement::tests::test_insert_then_select stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- statement::tests::test_insert_with_max_input_length stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- statement::tests::test_table_is_full stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- statement::tests::test_reject_duplicate_key stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     statement::tests::test_insert_should_sort_keys
[INFO] [stdout]     statement::tests::test_insert_then_select
[INFO] [stdout]     statement::tests::test_insert_with_max_input_length
[INFO] [stdout]     statement::tests::test_reject_duplicate_key
[INFO] [stdout]     statement::tests::test_table_is_full
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 5 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "14bcc6258983d0f0cc42dcf3ca8f3b8371054f56a7fa0687b89ae310d3ede073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bcc6258983d0f0cc42dcf3ca8f3b8371054f56a7fa0687b89ae310d3ede073", kill_on_drop: false }`
[INFO] [stdout] 14bcc6258983d0f0cc42dcf3ca8f3b8371054f56a7fa0687b89ae310d3ede073
