[INFO] cloning repository https://github.com/jeff-hughes/sqlite_clone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeff-hughes/sqlite_clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-hughes%2Fsqlite_clone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-hughes%2Fsqlite_clone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c072b31fe7cfe280959a9881245c38c104ebfa90
[INFO] checking jeff-hughes/sqlite_clone against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-hughes%2Fsqlite_clone" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeff-hughes/sqlite_clone on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeff-hughes/sqlite_clone
[INFO] finished tweaking git repo https://github.com/jeff-hughes/sqlite_clone
[INFO] tweaked toml for git repo https://github.com/jeff-hughes/sqlite_clone written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jeff-hughes/sqlite_clone 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded positioned-io v0.2.2
[INFO] [stderr]   Downloaded derive-try-from-primitive v1.0.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23edd234a25c47dce00f3986ec0357bb743219022690f66717bc17f9e78021de
[INFO] running `Command { std: "docker" "start" "-a" "23edd234a25c47dce00f3986ec0357bb743219022690f66717bc17f9e78021de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23edd234a25c47dce00f3986ec0357bb743219022690f66717bc17f9e78021de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23edd234a25c47dce00f3986ec0357bb743219022690f66717bc17f9e78021de", kill_on_drop: false }`
[INFO] [stdout] 23edd234a25c47dce00f3986ec0357bb743219022690f66717bc17f9e78021de
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a11e1e6a791b511b301d65f2db80dc37366508dbef9e75949488799da57b9c5
[INFO] running `Command { std: "docker" "start" "-a" "6a11e1e6a791b511b301d65f2db80dc37366508dbef9e75949488799da57b9c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking lru v0.6.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling derive-try-from-primitive v1.0.0
[INFO] [stderr]     Checking sqlite_clone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `db_options` is never read
[INFO] [stdout]   --> src/btree.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Btree<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     db_options: &'a DbOptions,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Btree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_length` is never read
[INFO] [stdout]   --> src/pager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Pager {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 14 |     file_descriptor: File,
[INFO] [stdout] 15 |     file_length: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `db_options` is never read
[INFO] [stdout]   --> src/btree.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Btree<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     db_options: &'a DbOptions,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Btree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_length` is never read
[INFO] [stdout]   --> src/pager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Pager {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 14 |     file_descriptor: File,
[INFO] [stdout] 15 |     file_length: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.07s
[INFO] running `Command { std: "docker" "inspect" "6a11e1e6a791b511b301d65f2db80dc37366508dbef9e75949488799da57b9c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a11e1e6a791b511b301d65f2db80dc37366508dbef9e75949488799da57b9c5", kill_on_drop: false }`
[INFO] [stdout] 6a11e1e6a791b511b301d65f2db80dc37366508dbef9e75949488799da57b9c5
[INFO] checking jeff-hughes/sqlite_clone against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-hughes%2Fsqlite_clone" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeff-hughes/sqlite_clone on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeff-hughes/sqlite_clone
[INFO] finished tweaking git repo https://github.com/jeff-hughes/sqlite_clone
[INFO] tweaked toml for git repo https://github.com/jeff-hughes/sqlite_clone written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jeff-hughes/sqlite_clone 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9633f9a15a73138da5aa45b67558110434b796e5b913c7ba037f2902e4772636
[INFO] running `Command { std: "docker" "start" "-a" "9633f9a15a73138da5aa45b67558110434b796e5b913c7ba037f2902e4772636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9633f9a15a73138da5aa45b67558110434b796e5b913c7ba037f2902e4772636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9633f9a15a73138da5aa45b67558110434b796e5b913c7ba037f2902e4772636", kill_on_drop: false }`
[INFO] [stdout] 9633f9a15a73138da5aa45b67558110434b796e5b913c7ba037f2902e4772636
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93236d474d7245fc5a4930a1a4c82076b874efc4e2ff78ebc87c5d3f8d6e142b
[INFO] running `Command { std: "docker" "start" "-a" "93236d474d7245fc5a4930a1a4c82076b874efc4e2ff78ebc87c5d3f8d6e142b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking lru v0.6.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling derive-try-from-primitive v1.0.0
[INFO] [stderr]     Checking sqlite_clone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `db_options` is never read
[INFO] [stdout]   --> src/btree.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Btree<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     db_options: &'a DbOptions,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Btree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_length` is never read
[INFO] [stdout]   --> src/pager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Pager {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 14 |     file_descriptor: File,
[INFO] [stdout] 15 |     file_length: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `db_options` is never read
[INFO] [stdout]   --> src/btree.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Btree<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     db_options: &'a DbOptions,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Btree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_length` is never read
[INFO] [stdout]   --> src/pager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Pager {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 14 |     file_descriptor: File,
[INFO] [stdout] 15 |     file_length: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.55s
[INFO] running `Command { std: "docker" "inspect" "93236d474d7245fc5a4930a1a4c82076b874efc4e2ff78ebc87c5d3f8d6e142b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93236d474d7245fc5a4930a1a4c82076b874efc4e2ff78ebc87c5d3f8d6e142b", kill_on_drop: false }`
[INFO] [stdout] 93236d474d7245fc5a4930a1a4c82076b874efc4e2ff78ebc87c5d3f8d6e142b