[INFO] cloning repository https://github.com/dogey11/QRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dogey11/QRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdogey11%2FQRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdogey11%2FQRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a46c34d944576c36570b3b0855b60a0985cec89
[INFO] checking dogey11/QRust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdogey11%2FQRust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dogey11/QRust 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/dogey11/QRust
[INFO] finished tweaking git repo https://github.com/dogey11/QRust
[INFO] tweaked toml for git repo https://github.com/dogey11/QRust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dogey11/QRust 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qrcode-generator v4.1.6
[INFO] [stderr]   Downloaded html-escape v0.2.11
[INFO] [stderr]   Downloaded qrcodegen v1.8.0
[INFO] [stderr]   Downloaded ttf-parser v0.15.1
[INFO] [stderr]   Downloaded fltk v1.3.8
[INFO] [stderr]   Downloaded curl v0.4.43
[INFO] [stderr]   Downloaded curl-sys v0.4.55+curl-7.83.1
[INFO] [stderr]   Downloaded fltk-sys v1.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d08b2b1be7a2be72d7b716b58170d480fcc0424390efd7d512c7e12013eaa9ed
[INFO] running `Command { std: "docker" "start" "-a" "d08b2b1be7a2be72d7b716b58170d480fcc0424390efd7d512c7e12013eaa9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d08b2b1be7a2be72d7b716b58170d480fcc0424390efd7d512c7e12013eaa9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08b2b1be7a2be72d7b716b58170d480fcc0424390efd7d512c7e12013eaa9ed", kill_on_drop: false }`
[INFO] [stdout] d08b2b1be7a2be72d7b716b58170d480fcc0424390efd7d512c7e12013eaa9ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b98718d4e8cb6b42cdef1b279c51c196e30587278bc2c04d2658ab9f5c480b96
[INFO] running `Command { std: "docker" "start" "-a" "b98718d4e8cb6b42cdef1b279c51c196e30587278bc2c04d2658ab9f5c480b96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling pkg-config v0.3.25
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[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
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[INFO] [stderr]    Compiling rayon v1.5.3
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[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking deflate v1.0.0
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[INFO] [stderr]    Compiling libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling openssl-sys v0.9.74
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[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
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[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.13
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[INFO] [stderr]     Checking qrcode-generator v4.1.6
[INFO] [stderr]     Checking fltk v1.3.8
[INFO] [stderr]     Checking qrust v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `webbrowser` is imported redundantly
[INFO] [stdout]  --> src/update.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use webbrowser;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `webbrowser` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `webbrowser` is imported redundantly
[INFO] [stdout]  --> src/update.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use webbrowser;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `webbrowser` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `qr_code_save` is never used
[INFO] [stdout]  --> src/qrcode.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn qr_code_save(value: &str, path: &str)
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_home` is never used
[INFO] [stdout]   --> src/dirs.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn get_home() -> String
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `qr_code_save` is never used
[INFO] [stdout]  --> src/qrcode.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn qr_code_save(value: &str, path: &str)
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_home` is never used
[INFO] [stdout]   --> src/dirs.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn get_home() -> String
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 41s
[INFO] running `Command { std: "docker" "inspect" "b98718d4e8cb6b42cdef1b279c51c196e30587278bc2c04d2658ab9f5c480b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98718d4e8cb6b42cdef1b279c51c196e30587278bc2c04d2658ab9f5c480b96", kill_on_drop: false }`
[INFO] [stdout] b98718d4e8cb6b42cdef1b279c51c196e30587278bc2c04d2658ab9f5c480b96