[INFO] cloning repository https://github.com/kevin-nel/rust_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevin-nel/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin-nel%2Frust_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin-nel%2Frust_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e79b185455ee5ff67da684f998b3567f5de3800a
[INFO] checking kevin-nel/rust_book against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin-nel%2Frust_book" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevin-nel/rust_book on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevin-nel/rust_book
[INFO] finished tweaking git repo https://github.com/kevin-nel/rust_book
[INFO] tweaked toml for git repo https://github.com/kevin-nel/rust_book written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kevin-nel/rust_book 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b94283562c764cbb9c0be5ebd18569d84eb61cf8a1e3039bdfb8ffbb6ae903c5
[INFO] running `Command { std: "docker" "start" "-a" "b94283562c764cbb9c0be5ebd18569d84eb61cf8a1e3039bdfb8ffbb6ae903c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b94283562c764cbb9c0be5ebd18569d84eb61cf8a1e3039bdfb8ffbb6ae903c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b94283562c764cbb9c0be5ebd18569d84eb61cf8a1e3039bdfb8ffbb6ae903c5", kill_on_drop: false }`
[INFO] [stdout] b94283562c764cbb9c0be5ebd18569d84eb61cf8a1e3039bdfb8ffbb6ae903c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca28291ee38a3b28d5d4fdad6ae8230d4bfd0b58f61250ca62859a86053ea85d
[INFO] running `Command { std: "docker" "start" "-a" "ca28291ee38a3b28d5d4fdad6ae8230d4bfd0b58f61250ca62859a86053ea85d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "ca28291ee38a3b28d5d4fdad6ae8230d4bfd0b58f61250ca62859a86053ea85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca28291ee38a3b28d5d4fdad6ae8230d4bfd0b58f61250ca62859a86053ea85d", kill_on_drop: false }`
[INFO] [stdout] ca28291ee38a3b28d5d4fdad6ae8230d4bfd0b58f61250ca62859a86053ea85d
[INFO] checking kevin-nel/rust_book against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevin-nel%2Frust_book" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevin-nel/rust_book on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevin-nel/rust_book
[INFO] finished tweaking git repo https://github.com/kevin-nel/rust_book
[INFO] tweaked toml for git repo https://github.com/kevin-nel/rust_book written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kevin-nel/rust_book 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 206abf3357762b7a4c0fae64046842ebe282d027e7dd690177a92324e65a9e84
[INFO] running `Command { std: "docker" "start" "-a" "206abf3357762b7a4c0fae64046842ebe282d027e7dd690177a92324e65a9e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "206abf3357762b7a4c0fae64046842ebe282d027e7dd690177a92324e65a9e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206abf3357762b7a4c0fae64046842ebe282d027e7dd690177a92324e65a9e84", kill_on_drop: false }`
[INFO] [stdout] 206abf3357762b7a4c0fae64046842ebe282d027e7dd690177a92324e65a9e84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ff0b64e1bec6a9d70b38037ad20210d072bb6d36b69891d6c1451be44b5e961
[INFO] running `Command { std: "docker" "start" "-a" "7ff0b64e1bec6a9d70b38037ad20210d072bb6d36b69891d6c1451be44b5e961", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/chapter_nine.rs:99:11
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let username_file_result = File::open("hello.txt");
[INFO] [stdout]    |         -------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 91 |     let mut username_file = match username_file_result {
[INFO] [stdout]    |             ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 92 |         Ok(file) => file,
[INFO] [stdout]    |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 93 |         // return early from function with error from file opening issue
[INFO] [stdout] 94 |         Err(e) => return Err(e),
[INFO] [stdout]    |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 99 |     match username_file.read_to_string(&mut username) {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_book` (bin "rust_book" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/chapter_nine.rs:99:11
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let username_file_result = File::open("hello.txt");
[INFO] [stdout]    |         -------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 91 |     let mut username_file = match username_file_result {
[INFO] [stdout]    |             ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 92 |         Ok(file) => file,
[INFO] [stdout]    |            ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 93 |         // return early from function with error from file opening issue
[INFO] [stdout] 94 |         Err(e) => return Err(e),
[INFO] [stdout]    |             - these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 99 |     match username_file.read_to_string(&mut username) {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_book` (bin "rust_book") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7ff0b64e1bec6a9d70b38037ad20210d072bb6d36b69891d6c1451be44b5e961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff0b64e1bec6a9d70b38037ad20210d072bb6d36b69891d6c1451be44b5e961", kill_on_drop: false }`
[INFO] [stdout] 7ff0b64e1bec6a9d70b38037ad20210d072bb6d36b69891d6c1451be44b5e961