[INFO] fetching crate qr-label-generator 0.1.0...
[INFO] testing qr-label-generator-0.1.0 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate qr-label-generator 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate qr-label-generator 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate qr-label-generator 0.1.0
[INFO] tweaked toml for crates.io crate qr-label-generator 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qr-label-generator 0.1.0 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qr-label-generator 0.1.0 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qrcode v0.13.0
[INFO] [stderr]   Downloaded pom v3.4.0
[INFO] [stderr]   Downloaded owned_ttf_parser v0.19.0
[INFO] [stderr]   Downloaded ttf-parser v0.19.2
[INFO] [stderr]   Downloaded printpdf v0.7.0
[INFO] [stderr]   Downloaded lopdf v0.31.0
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ae252ddcd333ff7f7ffcfd616b9a90a4de39073fc906819f7f14db1a213fc78
[INFO] running `Command { std: "docker" "start" "-a" "5ae252ddcd333ff7f7ffcfd616b9a90a4de39073fc906819f7f14db1a213fc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ae252ddcd333ff7f7ffcfd616b9a90a4de39073fc906819f7f14db1a213fc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae252ddcd333ff7f7ffcfd616b9a90a4de39073fc906819f7f14db1a213fc78", kill_on_drop: false }`
[INFO] [stdout] 5ae252ddcd333ff7f7ffcfd616b9a90a4de39073fc906819f7f14db1a213fc78
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 043bca855eb3bd961395bddac8a03fc5ca191579853bd02d46e2ea34e3954322
[INFO] running `Command { std: "docker" "start" "-a" "043bca855eb3bd961395bddac8a03fc5ca191579853bd02d46e2ea34e3954322", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling weezl v0.1.10
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling ttf-parser v0.19.2
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling pom v3.4.0
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling owned_ttf_parser v0.19.0
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling qrcode v0.13.0
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling lopdf v0.31.0
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling printpdf v0.7.0
[INFO] [stderr]    Compiling qr-label-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.81s
[INFO] running `Command { std: "docker" "inspect" "043bca855eb3bd961395bddac8a03fc5ca191579853bd02d46e2ea34e3954322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043bca855eb3bd961395bddac8a03fc5ca191579853bd02d46e2ea34e3954322", kill_on_drop: false }`
[INFO] [stdout] 043bca855eb3bd961395bddac8a03fc5ca191579853bd02d46e2ea34e3954322
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9925e033eee3a18277d9cb9f8ce871005e43d614a765c0204f83c69314f8d0bf
[INFO] running `Command { std: "docker" "start" "-a" "9925e033eee3a18277d9cb9f8ce871005e43d614a765c0204f83c69314f8d0bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling qr-label-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "9925e033eee3a18277d9cb9f8ce871005e43d614a765c0204f83c69314f8d0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9925e033eee3a18277d9cb9f8ce871005e43d614a765c0204f83c69314f8d0bf", kill_on_drop: false }`
[INFO] [stdout] 9925e033eee3a18277d9cb9f8ce871005e43d614a765c0204f83c69314f8d0bf
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e4c9e5c186fde3c781475033c8af2ecf7a7409eed8993100f71a0fc97509134
[INFO] running `Command { std: "docker" "start" "-a" "1e4c9e5c186fde3c781475033c8af2ecf7a7409eed8993100f71a0fc97509134", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qr_label_generator-316738dfd4e5a1a8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qr_label_generator
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/qr.rs - qr::QrGenerator::generate_single (line 67) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/qr.rs - qr::QrGenerator::generate_single (line 67) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/qr.rs:71:58
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_qr_rs_67_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 71 | gen.generate_single("https://example.com", "qr.png", 300)?;
[INFO] [stdout]    |                                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 68 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_qr_rs_67_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 69 | use qr_label_generator::QrGenerator;
[INFO] [stdout] 70 | let gen = QrGenerator::new();
[INFO] [stdout] 71 | gen.generate_single("https://example.com", "qr.png", 300)?;
[INFO] [stdout] 72 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/qr.rs - qr::QrGenerator::generate_single (line 67)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "1e4c9e5c186fde3c781475033c8af2ecf7a7409eed8993100f71a0fc97509134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4c9e5c186fde3c781475033c8af2ecf7a7409eed8993100f71a0fc97509134", kill_on_drop: false }`
[INFO] [stdout] 1e4c9e5c186fde3c781475033c8af2ecf7a7409eed8993100f71a0fc97509134
