[INFO] cloning repository https://github.com/stfdtj/COMP30023-2024---Project-2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stfdtj/COMP30023-2024---Project-2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstfdtj%2FCOMP30023-2024---Project-2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstfdtj%2FCOMP30023-2024---Project-2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a01c3bf1e7490f6a18b4a3064fb53f8c8fc31f5c
[INFO] fixing stfdtj/COMP30023-2024---Project-2 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstfdtj%2FCOMP30023-2024---Project-2" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stfdtj/COMP30023-2024---Project-2
[INFO] finished tweaking git repo https://github.com/stfdtj/COMP30023-2024---Project-2
[INFO] tweaked toml for git repo https://github.com/stfdtj/COMP30023-2024---Project-2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stfdtj/COMP30023-2024---Project-2 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stfdtj/COMP30023-2024---Project-2 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1
[INFO] running `Command { std: "docker" "start" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2021 edition to 2024
[INFO] [stderr]     Checking proj2-wuyues-yuxinr1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/main.rs from 2021 edition to 2024
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]   --> src/connection.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut stream = None;
[INFO] [stdout]    |         ----------
[INFO] [stdout]    |         |
[INFO] [stdout]    |         `stream` calls a custom destructor
[INFO] [stdout]    |         `stream` will be dropped later as of Edition 2024
[INFO] [stdout] 23 |     for addr in addrs {
[INFO] [stdout] 24 |         match TcpStream::connect(&addr) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]    |               up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 31 |     }
[INFO] [stdout]    |     - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]    |
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/std/src/os/fd/owned.rs:196:0
[INFO] [stdout] note: `stream` invokes this custom destructor
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/std/src/os/fd/owned.rs:196:0
[INFO] [stdout]    = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]    = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> src/utility.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |            --------          ^^^^^^^^^^^^^^^^^^^^^^^ this temporary value will be dropped at the end of the block
[INFO] [stdout]     |            |
[INFO] [stdout]     |            borrow later used by call
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/utility.rs:124:31
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]   --> src/connection.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut stream = None;
[INFO] [stdout]    |         ----------
[INFO] [stdout]    |         |
[INFO] [stdout]    |         `stream` calls a custom destructor
[INFO] [stdout]    |         `stream` will be dropped later as of Edition 2024
[INFO] [stdout] 23 |     for addr in addrs {
[INFO] [stdout] 24 |         match TcpStream::connect(&addr) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]    |               up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 31 |     }
[INFO] [stdout]    |     - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]    |
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/std/src/os/fd/owned.rs:196:0
[INFO] [stdout] note: `stream` invokes this custom destructor
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/std/src/os/fd/owned.rs:196:0
[INFO] [stdout]    = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]    = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> src/utility.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |            --------          ^^^^^^^^^^^^^^^^^^^^^^^ this temporary value will be dropped at the end of the block
[INFO] [stdout]     |            |
[INFO] [stdout]     |            borrow later used by call
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]    --> src/utility.rs:124:31
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: `--force-warn static-mut-refs` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] crater-edition-check: proj2-wuyues-yuxinr1 v0.1.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr]     Checking proj2-wuyues-yuxinr1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/utility.rs:124:31
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |            --------           ^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]     |            |                  |                    |
[INFO] [stdout]     |            |                  |                    temporary value is freed at the end of this statement
[INFO] [stdout]     |            |                  creates a temporary value which is freed while still in use
[INFO] [stdout]     |            borrow later used by call
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using a `let` binding to create a longer lived value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/utility.rs:124:31
[INFO] [stdout]     |
[INFO] [stdout] 124 |     result.push_str(unsafe { &TAG_NUMBER.to_string() });
[INFO] [stdout]     |            --------           ^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]     |            |                  |                    |
[INFO] [stdout]     |            |                  |                    temporary value is freed at the end of this statement
[INFO] [stdout]     |            |                  creates a temporary value which is freed while still in use
[INFO] [stdout]     |            borrow later used by call
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using a `let` binding to create a longer lived value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proj2-wuyues-yuxinr1` (bin "fetchmail" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proj2-wuyues-yuxinr1` (bin "fetchmail") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1", kill_on_drop: false }`
[INFO] [stdout] 7f6c39d75743f02d704754f1f62824573c29e343082d64eba29dcdc01a167ed1
