[INFO] fetching crate checkerboard 0.1.0...
[INFO] checking checkerboard-0.1.0 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate checkerboard 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate checkerboard 0.1.0
[INFO] finished tweaking crates.io crate checkerboard 0.1.0
[INFO] tweaked toml for crates.io crate checkerboard 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate checkerboard 0.1.0 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 159 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding image v0.22.5 (available: v0.25.6)
[INFO] [stderr]       Adding imageproc v0.18.0 (available: v0.25.0)
[INFO] [stderr]       Adding nalgebra v0.18.1 (available: v0.34.0)
[INFO] [stderr]       Adding opencv v0.17.3 (available: v0.95.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e189a81222314b6a0dfd734ea79f62966aae03567b8dd90a8fc14c8ff7c6e5f
[INFO] running `Command { std: "docker" "start" "-a" "7e189a81222314b6a0dfd734ea79f62966aae03567b8dd90a8fc14c8ff7c6e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e189a81222314b6a0dfd734ea79f62966aae03567b8dd90a8fc14c8ff7c6e5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e189a81222314b6a0dfd734ea79f62966aae03567b8dd90a8fc14c8ff7c6e5f", kill_on_drop: false }`
[INFO] [stdout] 7e189a81222314b6a0dfd734ea79f62966aae03567b8dd90a8fc14c8ff7c6e5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4878db93a2e688b7ee7ae581bcc5a233ae2e3f939ad6718c22b94c538d15ced
[INFO] running `Command { std: "docker" "start" "-a" "c4878db93a2e688b7ee7ae581bcc5a233ae2e3f939ad6718c22b94c538d15ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.175
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[INFO] [stderr]     Checking rand_core v0.4.2
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[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
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[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.14
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[INFO] [stderr]     Checking color_quant v1.1.0
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[INFO] [stderr]    Compiling serde_json v1.0.143
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[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking itoa v1.0.15
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[INFO] [stderr]     Checking rawpointer v0.2.1
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[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking matrixmultiply v0.2.4
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[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling cpp_common v0.5.10
[INFO] [stderr]    Compiling cpp_macros v0.5.10
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking imageproc v0.18.0
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking cpp v0.5.10
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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 the trait `Clamp`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/imageproc-0.18.0/src/definitions.rs:68:5
[INFO] [stdout]     |
[INFO] [stdout] 68  |     fn clamp(x: T) -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Ord` for the type `u8`
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 440 -             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout] 440 +             let intensity = <u8 as Clamp>::clamp(hist[bucket]);
[INFO] [stdout]     |
[INFO] [stdout] 440 -             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout] 440 +             let intensity = Ord::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/index.crates.io-1949cf8c6b5b557f/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 the trait `Clamp`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/imageproc-0.18.0/src/definitions.rs:68:5
[INFO] [stdout]     |
[INFO] [stdout] 68  |     fn clamp(x: T) -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Ord` for the type `u8`
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 444 -             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout] 444 +             let intensity = <u8 as Clamp>::clamp(hist[bucket]);
[INFO] [stdout]     |
[INFO] [stdout] 444 -             let intensity = u8::clamp(hist[bucket]);
[INFO] [stdout] 444 +             let intensity = Ord::clamp(hist[bucket]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cpp_build v0.5.10
[INFO] [stderr]    Compiling opencv v0.17.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imageproc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c4878db93a2e688b7ee7ae581bcc5a233ae2e3f939ad6718c22b94c538d15ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4878db93a2e688b7ee7ae581bcc5a233ae2e3f939ad6718c22b94c538d15ced", kill_on_drop: false }`
[INFO] [stdout] c4878db93a2e688b7ee7ae581bcc5a233ae2e3f939ad6718c22b94c538d15ced
