[INFO] cloning repository https://github.com/Louis-Saglio/RustSandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Louis-Saglio/RustSandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLouis-Saglio%2FRustSandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLouis-Saglio%2FRustSandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1c61f6a4d0ec773b9c21d063f2d14e38ebe152f
[INFO] building Louis-Saglio/RustSandbox against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLouis-Saglio%2FRustSandbox" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Louis-Saglio/RustSandbox on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Louis-Saglio/RustSandbox
[INFO] finished tweaking git repo https://github.com/Louis-Saglio/RustSandbox
[INFO] tweaked toml for git repo https://github.com/Louis-Saglio/RustSandbox written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Louis-Saglio/RustSandbox 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f380bd636bda29411b593335c966ad3240b38066fff3dae8e879475da780831
[INFO] running `Command { std: "docker" "start" "-a" "8f380bd636bda29411b593335c966ad3240b38066fff3dae8e879475da780831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f380bd636bda29411b593335c966ad3240b38066fff3dae8e879475da780831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f380bd636bda29411b593335c966ad3240b38066fff3dae8e879475da780831", kill_on_drop: false }`
[INFO] [stdout] 8f380bd636bda29411b593335c966ad3240b38066fff3dae8e879475da780831
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c008ff44613e1299e168b14c4532402c12efc80488f867b624ae138c55c104a
[INFO] running `Command { std: "docker" "start" "-a" "7c008ff44613e1299e168b14c4532402c12efc80488f867b624ae138c55c104a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `attacker_dice`
[INFO] [stdout]   --> src/main.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn compute_defender_dice_number_0(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attacker_dice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:50:60
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn compute_defender_dice_number_0(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:58:60
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn compute_defender_dice_number_1(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn compute_defender_dice_number_2(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `attacker_winning_rate`, `average_attacker_units_remaining`, and `average_defender_units_remaining` are never read
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Stats {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 15 |     attacker_winning_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     average_attacker_units_remaining: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     average_defender_units_remaining: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` 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: method `to_string` is never used
[INFO] [stdout]   --> src/main.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl BattleResult {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 33 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_1` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn compute_defender_dice_number_1(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_2` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn compute_defender_dice_number_2(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_3` is never used
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn compute_defender_dice_number_3(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "7c008ff44613e1299e168b14c4532402c12efc80488f867b624ae138c55c104a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c008ff44613e1299e168b14c4532402c12efc80488f867b624ae138c55c104a", kill_on_drop: false }`
[INFO] [stdout] 7c008ff44613e1299e168b14c4532402c12efc80488f867b624ae138c55c104a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d25e987205265fec2a5d3fc27ca92eb6ed8fcdf2c05f55b5cab469a9c9a2c36
[INFO] running `Command { std: "docker" "start" "-a" "4d25e987205265fec2a5d3fc27ca92eb6ed8fcdf2c05f55b5cab469a9c9a2c36", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `attacker_dice`
[INFO] [stdout]   --> src/main.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn compute_defender_dice_number_0(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attacker_dice`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:50:60
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn compute_defender_dice_number_0(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:58:60
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn compute_defender_dice_number_1(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attackers_nbr`
[INFO] [stdout]   --> src/main.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn compute_defender_dice_number_2(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_attackers_nbr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `attacker_winning_rate`, `average_attacker_units_remaining`, and `average_defender_units_remaining` are never read
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Stats {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 15 |     attacker_winning_rate: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     average_attacker_units_remaining: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     average_defender_units_remaining: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stats` 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: method `to_string` is never used
[INFO] [stdout]   --> src/main.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl BattleResult {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 33 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_1` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn compute_defender_dice_number_1(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_2` is never used
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn compute_defender_dice_number_2(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_defender_dice_number_3` is never used
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn compute_defender_dice_number_3(attacker_dice: &Vec<u8>, attackers_nbr: &u32, defenders_nbr: &u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "4d25e987205265fec2a5d3fc27ca92eb6ed8fcdf2c05f55b5cab469a9c9a2c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d25e987205265fec2a5d3fc27ca92eb6ed8fcdf2c05f55b5cab469a9c9a2c36", kill_on_drop: false }`
[INFO] [stdout] 4d25e987205265fec2a5d3fc27ca92eb6ed8fcdf2c05f55b5cab469a9c9a2c36