[INFO] cloning repository https://github.com/endre90/litreview
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/endre90/litreview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendre90%2Flitreview", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendre90%2Flitreview'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eba97906e05f318bf861156791e26157b473f64
[INFO] checking endre90/litreview against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fendre90%2Flitreview" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/endre90/litreview
[INFO] finished tweaking git repo https://github.com/endre90/litreview
[INFO] tweaked toml for git repo https://github.com/endre90/litreview written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/endre90/litreview on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/endre90/litreview 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de7604cd129ff0dd866f0750f1c57602bdcf3bc0c67943db16158b152ea712d3
[INFO] running `Command { std: "docker" "start" "-a" "de7604cd129ff0dd866f0750f1c57602bdcf3bc0c67943db16158b152ea712d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de7604cd129ff0dd866f0750f1c57602bdcf3bc0c67943db16158b152ea712d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7604cd129ff0dd866f0750f1c57602bdcf3bc0c67943db16158b152ea712d3", kill_on_drop: false }`
[INFO] [stdout] de7604cd129ff0dd866f0750f1c57602bdcf3bc0c67943db16158b152ea712d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52d3c559978b54b19c4e2da4b2bcd2d285c2eaf116f7da42a1cf5b1e122d0dfd
[INFO] running `Command { std: "docker" "start" "-a" "52d3c559978b54b19c4e2da4b2bcd2d285c2eaf116f7da42a1cf5b1e122d0dfd", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking litreview v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `vpc_ieee_len`
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let vpc_ieee_len = vpc_ieee.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vpc_ieee_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vpc_scopus_len`
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let vpc_scopus_len = vpc_scopus.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vpc_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idt_ieee_len`
[INFO] [stdout]    --> src/main.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let idt_ieee_len = idt_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idt_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idt_scopus_len`
[INFO] [stdout]    --> src/main.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let idt_scopus_len = idt_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idt_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imas_ieee_len`
[INFO] [stdout]    --> src/main.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let imas_ieee_len = imas_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_imas_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imas_scopus_len`
[INFO] [stdout]    --> src/main.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let imas_scopus_len = imas_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_imas_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpps_ieee_len`
[INFO] [stdout]    --> src/main.rs:394:9
[INFO] [stdout]     |
[INFO] [stdout] 394 |     let cpps_ieee_len = cpps_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cpps_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpps_scopus_len`
[INFO] [stdout]    --> src/main.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 395 |     let cpps_scopus_len = cpps_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cpps_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ifsr_ma_ieee_len`
[INFO] [stdout]    --> src/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     let ifsr_ma_ieee_len = ifsr_ma_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ifsr_ma_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ifsr_ma_scopus_len`
[INFO] [stdout]    --> src/main.rs:585:9
[INFO] [stdout]     |
[INFO] [stdout] 585 |     let ifsr_ma_scopus_len = ifsr_ma_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ifsr_ma_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ros_ieee_len`
[INFO] [stdout]    --> src/main.rs:790:9
[INFO] [stdout]     |
[INFO] [stdout] 790 |     let ros_ieee_len = ros_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ros_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ros_scopus_len`
[INFO] [stdout]    --> src/main.rs:791:9
[INFO] [stdout]     |
[INFO] [stdout] 791 |     let ros_scopus_len = ros_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ros_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_2_final`
[INFO] [stdout]    --> src/main.rs:913:9
[INFO] [stdout]     |
[INFO] [stdout] 913 |     let stage_2_final = vec!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_2_final`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_3`
[INFO] [stdout]     --> src/main.rs:1240:9
[INFO] [stdout]      |
[INFO] [stdout] 1240 |     let stage_3 = vec!(
[INFO] [stdout]      |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_3_control`
[INFO] [stdout]     --> src/main.rs:1282:9
[INFO] [stdout]      |
[INFO] [stdout] 1282 |     let stage_3_control = vec!(
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_3_control`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found_extra`
[INFO] [stdout]     --> src/main.rs:1301:9
[INFO] [stdout]      |
[INFO] [stdout] 1301 |     let found_extra = vec!(
[INFO] [stdout]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vpc_ieee_len`
[INFO] [stdout]   --> src/main.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let vpc_ieee_len = vpc_ieee.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vpc_ieee_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vpc_scopus_len`
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let vpc_scopus_len = vpc_scopus.len();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vpc_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idt_ieee_len`
[INFO] [stdout]    --> src/main.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let idt_ieee_len = idt_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idt_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idt_scopus_len`
[INFO] [stdout]    --> src/main.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let idt_scopus_len = idt_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_idt_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imas_ieee_len`
[INFO] [stdout]    --> src/main.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let imas_ieee_len = imas_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_imas_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `imas_scopus_len`
[INFO] [stdout]    --> src/main.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     let imas_scopus_len = imas_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_imas_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpps_ieee_len`
[INFO] [stdout]    --> src/main.rs:394:9
[INFO] [stdout]     |
[INFO] [stdout] 394 |     let cpps_ieee_len = cpps_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cpps_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpps_scopus_len`
[INFO] [stdout]    --> src/main.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 395 |     let cpps_scopus_len = cpps_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cpps_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ifsr_ma_ieee_len`
[INFO] [stdout]    --> src/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     let ifsr_ma_ieee_len = ifsr_ma_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ifsr_ma_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ifsr_ma_scopus_len`
[INFO] [stdout]    --> src/main.rs:585:9
[INFO] [stdout]     |
[INFO] [stdout] 585 |     let ifsr_ma_scopus_len = ifsr_ma_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ifsr_ma_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ros_ieee_len`
[INFO] [stdout]    --> src/main.rs:790:9
[INFO] [stdout]     |
[INFO] [stdout] 790 |     let ros_ieee_len = ros_ieee.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ros_ieee_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ros_scopus_len`
[INFO] [stdout]    --> src/main.rs:791:9
[INFO] [stdout]     |
[INFO] [stdout] 791 |     let ros_scopus_len = ros_scopus.len();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ros_scopus_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_2_final`
[INFO] [stdout]    --> src/main.rs:913:9
[INFO] [stdout]     |
[INFO] [stdout] 913 |     let stage_2_final = vec!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_2_final`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_3`
[INFO] [stdout]     --> src/main.rs:1240:9
[INFO] [stdout]      |
[INFO] [stdout] 1240 |     let stage_3 = vec!(
[INFO] [stdout]      |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stage_3_control`
[INFO] [stdout]     --> src/main.rs:1282:9
[INFO] [stdout]      |
[INFO] [stdout] 1282 |     let stage_3_control = vec!(
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stage_3_control`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found_extra`
[INFO] [stdout]     --> src/main.rs:1301:9
[INFO] [stdout]      |
[INFO] [stdout] 1301 |     let found_extra = vec!(
[INFO] [stdout]      |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found_extra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "52d3c559978b54b19c4e2da4b2bcd2d285c2eaf116f7da42a1cf5b1e122d0dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d3c559978b54b19c4e2da4b2bcd2d285c2eaf116f7da42a1cf5b1e122d0dfd", kill_on_drop: false }`
[INFO] [stdout] 52d3c559978b54b19c4e2da4b2bcd2d285c2eaf116f7da42a1cf5b1e122d0dfd
