[INFO] cloning repository https://github.com/Lol3rrr/rust-facomp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lol3rrr/rust-facomp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLol3rrr%2Frust-facomp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLol3rrr%2Frust-facomp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecdb8f287590242d54ceccbde647e1db5075674e
[INFO] building Lol3rrr/rust-facomp 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%2FLol3rrr%2Frust-facomp" "/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/Lol3rrr/rust-facomp 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/Lol3rrr/rust-facomp
[INFO] finished tweaking git repo https://github.com/Lol3rrr/rust-facomp
[INFO] tweaked toml for git repo https://github.com/Lol3rrr/rust-facomp written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Lol3rrr/rust-facomp 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.91
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96c42f36dc6c5a4652ad66ee839b0e186e61f83c8f70b5621439572cee1147b9
[INFO] running `Command { std: "docker" "start" "-a" "96c42f36dc6c5a4652ad66ee839b0e186e61f83c8f70b5621439572cee1147b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96c42f36dc6c5a4652ad66ee839b0e186e61f83c8f70b5621439572cee1147b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96c42f36dc6c5a4652ad66ee839b0e186e61f83c8f70b5621439572cee1147b9", kill_on_drop: false }`
[INFO] [stdout] 96c42f36dc6c5a4652ad66ee839b0e186e61f83c8f70b5621439572cee1147b9
[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 -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] 7a96c97860c85f2baf558167f845066dcbdd85f24b3547708c0a86d6f09eedc3
[INFO] running `Command { std: "docker" "start" "-a" "7a96c97860c85f2baf558167f845066dcbdd85f24b3547708c0a86d6f09eedc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling facompiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `RCX` is never constructed
[INFO] [stdout]  --> src/backend/archs/x86_64/asm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Register {
[INFO] [stdout]   |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     RCX,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` 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: variant `Int` is never constructed
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Instruction {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Int(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn pretty_print(instructions: &[Instruction]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `Command { std: "docker" "inspect" "7a96c97860c85f2baf558167f845066dcbdd85f24b3547708c0a86d6f09eedc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a96c97860c85f2baf558167f845066dcbdd85f24b3547708c0a86d6f09eedc3", kill_on_drop: false }`
[INFO] [stdout] 7a96c97860c85f2baf558167f845066dcbdd85f24b3547708c0a86d6f09eedc3
[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 -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] 9ad95af250350f55bd79265d28848df4a9d96454c6693347e1826be159b1bafb
[INFO] running `Command { std: "docker" "start" "-a" "9ad95af250350f55bd79265d28848df4a9d96454c6693347e1826be159b1bafb", kill_on_drop: false }`
[INFO] [stdout] warning: variant `RCX` is never constructed
[INFO] [stdout]  --> src/backend/archs/x86_64/asm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Register {
[INFO] [stdout]   |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     RCX,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` 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: variant `Int` is never constructed
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Instruction {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Int(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling facompiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn pretty_print(instructions: &[Instruction]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RCX` is never constructed
[INFO] [stdout]  --> src/backend/archs/x86_64/asm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Register {
[INFO] [stdout]   |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     RCX,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` 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: variant `Int` is never constructed
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Instruction {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 49 |     Int(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Instruction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]   --> src/backend/archs/x86_64/asm.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn pretty_print(instructions: &[Instruction]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "9ad95af250350f55bd79265d28848df4a9d96454c6693347e1826be159b1bafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad95af250350f55bd79265d28848df4a9d96454c6693347e1826be159b1bafb", kill_on_drop: false }`
[INFO] [stdout] 9ad95af250350f55bd79265d28848df4a9d96454c6693347e1826be159b1bafb