[INFO] cloning repository https://github.com/brettkolodny/blllc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brettkolodny/blllc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettkolodny%2Fblllc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettkolodny%2Fblllc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ae9066ecb41a7b30b0291240d9ab8a473967c49
[INFO] checking brettkolodny/blllc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettkolodny%2Fblllc" "/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/brettkolodny/blllc on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brettkolodny/blllc
[INFO] finished tweaking git repo https://github.com/brettkolodny/blllc
[INFO] tweaked toml for git repo https://github.com/brettkolodny/blllc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/brettkolodny/blllc 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f78d5747f9f579d1c8912cdeb9526b54b0ee3bca7ae0775a4e65b32cc61ae7e
[INFO] running `Command { std: "docker" "start" "-a" "2f78d5747f9f579d1c8912cdeb9526b54b0ee3bca7ae0775a4e65b32cc61ae7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f78d5747f9f579d1c8912cdeb9526b54b0ee3bca7ae0775a4e65b32cc61ae7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f78d5747f9f579d1c8912cdeb9526b54b0ee3bca7ae0775a4e65b32cc61ae7e", kill_on_drop: false }`
[INFO] [stdout] 2f78d5747f9f579d1c8912cdeb9526b54b0ee3bca7ae0775a4e65b32cc61ae7e
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2afadc3a2b142356a908eb7a2dea4d1e9d0e5407a5b29c091d3c1e7c2389d727
[INFO] running `Command { std: "docker" "start" "-a" "2afadc3a2b142356a908eb7a2dea4d1e9d0e5407a5b29c091d3c1e7c2389d727", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking blllc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::lexer_tests::*`
[INFO] [stdout]  --> src/tests/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::lexer_tests::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::parser_tests::*`
[INFO] [stdout]  --> src/tests/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::parser_tests::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]   --> src/token.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |   pub token_type: TokenType,
[INFO] [stdout] 46 |   pub row: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 47 |   pub col: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]   --> src/token.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |   pub token_type: TokenType,
[INFO] [stdout] 46 |   pub row: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 47 |   pub col: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "2afadc3a2b142356a908eb7a2dea4d1e9d0e5407a5b29c091d3c1e7c2389d727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2afadc3a2b142356a908eb7a2dea4d1e9d0e5407a5b29c091d3c1e7c2389d727", kill_on_drop: false }`
[INFO] [stdout] 2afadc3a2b142356a908eb7a2dea4d1e9d0e5407a5b29c091d3c1e7c2389d727
[INFO] checking brettkolodny/blllc against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrettkolodny%2Fblllc" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brettkolodny/blllc on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brettkolodny/blllc
[INFO] finished tweaking git repo https://github.com/brettkolodny/blllc
[INFO] tweaked toml for git repo https://github.com/brettkolodny/blllc written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/brettkolodny/blllc 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a6b1e8da6287453b9cf1dccf88ac360dacf4214113886bf91b3b27feb30d792
[INFO] running `Command { std: "docker" "start" "-a" "1a6b1e8da6287453b9cf1dccf88ac360dacf4214113886bf91b3b27feb30d792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a6b1e8da6287453b9cf1dccf88ac360dacf4214113886bf91b3b27feb30d792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6b1e8da6287453b9cf1dccf88ac360dacf4214113886bf91b3b27feb30d792", kill_on_drop: false }`
[INFO] [stdout] 1a6b1e8da6287453b9cf1dccf88ac360dacf4214113886bf91b3b27feb30d792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a40ad432d4a2598ea6bf462a672eed05cc5dd13368c8b00a63b50b2c6a0443f
[INFO] running `Command { std: "docker" "start" "-a" "4a40ad432d4a2598ea6bf462a672eed05cc5dd13368c8b00a63b50b2c6a0443f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking blllc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::lexer_tests::*`
[INFO] [stdout]  --> src/tests/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use self::lexer_tests::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::parser_tests::*`
[INFO] [stdout]  --> src/tests/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use self::parser_tests::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]   --> src/token.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |   pub token_type: TokenType,
[INFO] [stdout] 46 |   pub row: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 47 |   pub col: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]   --> src/token.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 45 |   pub token_type: TokenType,
[INFO] [stdout] 46 |   pub row: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 47 |   pub col: u32,
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "4a40ad432d4a2598ea6bf462a672eed05cc5dd13368c8b00a63b50b2c6a0443f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a40ad432d4a2598ea6bf462a672eed05cc5dd13368c8b00a63b50b2c6a0443f", kill_on_drop: false }`
[INFO] [stdout] 4a40ad432d4a2598ea6bf462a672eed05cc5dd13368c8b00a63b50b2c6a0443f