[INFO] cloning repository https://github.com/B1RO/BLEU
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/B1RO/BLEU" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FB1RO%2FBLEU", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FB1RO%2FBLEU'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e338ab282d376ba7f563b97f9e357dd830b2b5c8
[INFO] building B1RO/BLEU 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%2FB1RO%2FBLEU" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/B1RO/BLEU 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/B1RO/BLEU
[INFO] finished tweaking git repo https://github.com/B1RO/BLEU
[INFO] tweaked toml for git repo https://github.com/B1RO/BLEU written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/B1RO/BLEU 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a031f42288310e40a3e108a8572b5e8e66215411dabbaa59a482a6060a240e31
[INFO] running `Command { std: "docker" "start" "-a" "a031f42288310e40a3e108a8572b5e8e66215411dabbaa59a482a6060a240e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a031f42288310e40a3e108a8572b5e8e66215411dabbaa59a482a6060a240e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a031f42288310e40a3e108a8572b5e8e66215411dabbaa59a482a6060a240e31", kill_on_drop: false }`
[INFO] [stdout] a031f42288310e40a3e108a8572b5e8e66215411dabbaa59a482a6060a240e31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ab0e52dc02a354a6db5841644d5584560bdee1f031c99ca70422471d3e3f0608
[INFO] running `Command { std: "docker" "start" "-a" "ab0e52dc02a354a6db5841644d5584560bdee1f031c99ca70422471d3e3f0608", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling BLEU v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bleu_score`
[INFO] [stdout]    --> src/main.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let bleu_score = brevity_penalty * average_log_precision.exp();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bleu_score`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/main.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 |         for (index, translation) in unique_translations.iter().enumerate() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "ab0e52dc02a354a6db5841644d5584560bdee1f031c99ca70422471d3e3f0608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0e52dc02a354a6db5841644d5584560bdee1f031c99ca70422471d3e3f0608", kill_on_drop: false }`
[INFO] [stdout] ab0e52dc02a354a6db5841644d5584560bdee1f031c99ca70422471d3e3f0608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d22bdc8cb216105a074ee53c1d5f701cfebfbe5be52048ebc9c9cf9c9f288928
[INFO] running `Command { std: "docker" "start" "-a" "d22bdc8cb216105a074ee53c1d5f701cfebfbe5be52048ebc9c9cf9c9f288928", kill_on_drop: false }`
[INFO] [stderr]    Compiling BLEU v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bleu_score`
[INFO] [stdout]    --> src/main.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let bleu_score = brevity_penalty * average_log_precision.exp();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bleu_score`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/main.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 |         for (index, translation) in unique_translations.iter().enumerate() {
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "d22bdc8cb216105a074ee53c1d5f701cfebfbe5be52048ebc9c9cf9c9f288928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d22bdc8cb216105a074ee53c1d5f701cfebfbe5be52048ebc9c9cf9c9f288928", kill_on_drop: false }`
[INFO] [stdout] d22bdc8cb216105a074ee53c1d5f701cfebfbe5be52048ebc9c9cf9c9f288928