[INFO] fetching crate wifiqr 0.0.6...
[INFO] testing wifiqr-0.0.6 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wifiqr 0.0.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wifiqr 0.0.6 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wifiqr 0.0.6
[INFO] finished tweaking crates.io crate wifiqr 0.0.6
[INFO] tweaked toml for crates.io crate wifiqr 0.0.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate wifiqr 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stb_truetype v0.3.1
[INFO] [stderr]   Downloaded rusttype v0.7.9
[INFO] [stderr]   Downloaded num_cpus v1.12.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.1
[INFO] [stderr]   Downloaded memoffset v0.5.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded gif v0.10.3
[INFO] [stderr]   Downloaded adler32 v1.0.4
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded image v0.21.3
[INFO] [stderr]   Downloaded deflate v0.7.20
[INFO] [stderr]   Downloaded conv v0.3.3
[INFO] [stderr]   Downloaded num-bigint v0.2.5
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded num-rational v0.2.3
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
[INFO] [stderr]   Downloaded rusttype v0.8.2
[INFO] [stderr]   Downloaded approx v0.3.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded rayon-core v1.7.0
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.18
[INFO] [stderr]   Downloaded qrcodegen v1.5.0
[INFO] [stderr]   Downloaded imageproc v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9673a96b6f10ae246c512a32aaeb9657fa6058a558f0f312e2c73aa682977e0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9673a96b6f10ae246c512a32aaeb9657fa6058a558f0f312e2c73aa682977e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9673a96b6f10ae246c512a32aaeb9657fa6058a558f0f312e2c73aa682977e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9673a96b6f10ae246c512a32aaeb9657fa6058a558f0f312e2c73aa682977e0b", kill_on_drop: false }`
[INFO] [stdout] 9673a96b6f10ae246c512a32aaeb9657fa6058a558f0f312e2c73aa682977e0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaa82bef6b0120a186b5651f6508225b8b890eed07d908a29a3196217ff0afa1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aaa82bef6b0120a186b5651f6508225b8b890eed07d908a29a3196217ff0afa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling qrcodegen v1.5.0
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling imageproc v0.18.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/imageproc-0.18.0/src/hog.rs:440:33
[INFO] [stdout]     |
[INFO] [stdout] 440 |             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout]     |                                 ^^^^^ multiple `clamp` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Ord` for the type `u8`
[INFO] [stdout] note: candidate #2 is defined in the trait `Clamp`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/imageproc-0.18.0/src/definitions.rs:68:5
[INFO] [stdout]     |
[INFO] [stdout] 68  |     fn clamp(x: T) -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 440 |             let intensity = Ord::clamp(hist[bucket]);
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 440 |             let intensity = Clamp::clamp(hist[bucket]);
[INFO] [stdout]     |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/imageproc-0.18.0/src/hog.rs:444:33
[INFO] [stdout]     |
[INFO] [stdout] 444 |             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout]     |                                 ^^^^^ multiple `clamp` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Ord` for the type `u8`
[INFO] [stdout] note: candidate #2 is defined in the trait `Clamp`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/imageproc-0.18.0/src/definitions.rs:68:5
[INFO] [stdout]     |
[INFO] [stdout] 68  |     fn clamp(x: T) -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 444 |             let intensity = Ord::clamp(hist[bucket]);
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 444 |             let intensity = Clamp::clamp(hist[bucket]);
[INFO] [stdout]     |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imageproc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "aaa82bef6b0120a186b5651f6508225b8b890eed07d908a29a3196217ff0afa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaa82bef6b0120a186b5651f6508225b8b890eed07d908a29a3196217ff0afa1", kill_on_drop: false }`
[INFO] [stdout] aaa82bef6b0120a186b5651f6508225b8b890eed07d908a29a3196217ff0afa1