[INFO] cloning repository https://github.com/dandyvica/ewc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dandyvica/ewc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandyvica%2Fewc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandyvica%2Fewc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22961dc599fcc4c4d756644baa0b1adc9ab756f3
[INFO] checking dandyvica/ewc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandyvica%2Fewc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dandyvica/ewc 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/dandyvica/ewc
[INFO] finished tweaking git repo https://github.com/dandyvica/ewc
[INFO] tweaked toml for git repo https://github.com/dandyvica/ewc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dandyvica/ewc 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] [stderr] warning: file `/workspace/builds/worker-5-tc1/source/tests/genutf.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `genutf`
[INFO] [stderr]   * `integration-test` target `genutf`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.3.6
[INFO] [stderr]   Downloaded flate2 v1.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1c27e945f9129cd13633d590be3c3d36832818ba178d6c2198f8f4214018e60e
[INFO] running `Command { std: "docker" "start" "-a" "1c27e945f9129cd13633d590be3c3d36832818ba178d6c2198f8f4214018e60e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c27e945f9129cd13633d590be3c3d36832818ba178d6c2198f8f4214018e60e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c27e945f9129cd13633d590be3c3d36832818ba178d6c2198f8f4214018e60e", kill_on_drop: false }`
[INFO] [stdout] 1c27e945f9129cd13633d590be3c3d36832818ba178d6c2198f8f4214018e60e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1474800b5fc32ebd2356e8ac8686178e2fb56ee0905cf73570d0d3fe1fc7197a
[INFO] running `Command { std: "docker" "start" "-a" "1474800b5fc32ebd2356e8ac8686178e2fb56ee0905cf73570d0d3fe1fc7197a", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/tests/genutf.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `genutf`
[INFO] [stderr]   * `integration-test` target `genutf`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking awc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.15s
[INFO] running `Command { std: "docker" "inspect" "1474800b5fc32ebd2356e8ac8686178e2fb56ee0905cf73570d0d3fe1fc7197a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1474800b5fc32ebd2356e8ac8686178e2fb56ee0905cf73570d0d3fe1fc7197a", kill_on_drop: false }`
[INFO] [stdout] 1474800b5fc32ebd2356e8ac8686178e2fb56ee0905cf73570d0d3fe1fc7197a
[INFO] checking dandyvica/ewc against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandyvica%2Fewc" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dandyvica/ewc 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/dandyvica/ewc
[INFO] finished tweaking git repo https://github.com/dandyvica/ewc
[INFO] tweaked toml for git repo https://github.com/dandyvica/ewc written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dandyvica/ewc 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] [stderr] warning: file `/workspace/builds/worker-5-tc2/source/tests/genutf.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `genutf`
[INFO] [stderr]   * `integration-test` target `genutf`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 157ccc4c8ed7cf29a50b9120a2372ab517c3b1207363afdd9e5d1266e85dde8d
[INFO] running `Command { std: "docker" "start" "-a" "157ccc4c8ed7cf29a50b9120a2372ab517c3b1207363afdd9e5d1266e85dde8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "157ccc4c8ed7cf29a50b9120a2372ab517c3b1207363afdd9e5d1266e85dde8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "157ccc4c8ed7cf29a50b9120a2372ab517c3b1207363afdd9e5d1266e85dde8d", kill_on_drop: false }`
[INFO] [stdout] 157ccc4c8ed7cf29a50b9120a2372ab517c3b1207363afdd9e5d1266e85dde8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 989c69030f2a7fc69bae7d0149f701dd7b6e0007750611a6f6b709311e9dd3c8
[INFO] running `Command { std: "docker" "start" "-a" "989c69030f2a7fc69bae7d0149f701dd7b6e0007750611a6f6b709311e9dd3c8", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/tests/genutf.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `genutf`
[INFO] [stderr]   * `integration-test` target `genutf`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking awc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bom`
[INFO] [stdout]   --> tests/genutf.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let bom = matches.is_present("bom");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.45s
[INFO] running `Command { std: "docker" "inspect" "989c69030f2a7fc69bae7d0149f701dd7b6e0007750611a6f6b709311e9dd3c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989c69030f2a7fc69bae7d0149f701dd7b6e0007750611a6f6b709311e9dd3c8", kill_on_drop: false }`
[INFO] [stdout] 989c69030f2a7fc69bae7d0149f701dd7b6e0007750611a6f6b709311e9dd3c8