[INFO] fetching crate convert-nonogram 0.1.2...
[INFO] checking convert-nonogram-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate convert-nonogram 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate convert-nonogram 0.1.2 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 crates.io crate convert-nonogram 0.1.2
[INFO] finished tweaking crates.io crate convert-nonogram 0.1.2
[INFO] tweaked toml for crates.io crate convert-nonogram 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate convert-nonogram 0.1.2 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]     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]  Downloading crates ...
[INFO] [stderr]   Downloaded const_fn v0.4.3
[INFO] [stderr]   Downloaded unindent v0.1.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
[INFO] [stderr]   Downloaded png v0.16.7
[INFO] [stderr]   Downloaded indoc v1.0.3
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] [stderr]   Downloaded image v0.23.11
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] [stderr]   Downloaded tiff v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 60aa17b421d0987519d7729d8087c6feafa221e076fe23ea289e7a38396693bd
[INFO] running `Command { std: "docker" "start" "-a" "60aa17b421d0987519d7729d8087c6feafa221e076fe23ea289e7a38396693bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60aa17b421d0987519d7729d8087c6feafa221e076fe23ea289e7a38396693bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60aa17b421d0987519d7729d8087c6feafa221e076fe23ea289e7a38396693bd", kill_on_drop: false }`
[INFO] [stdout] 60aa17b421d0987519d7729d8087c6feafa221e076fe23ea289e7a38396693bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 29a31649441f00e8e77c9c3adf1a9dd10ce0d1c442b8784cb3e194576471cf05
[INFO] running `Command { std: "docker" "start" "-a" "29a31649441f00e8e77c9c3adf1a9dd10ce0d1c442b8784cb3e194576471cf05", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking image v0.23.11
[INFO] [stderr]     Checking convert-nonogram v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "29a31649441f00e8e77c9c3adf1a9dd10ce0d1c442b8784cb3e194576471cf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29a31649441f00e8e77c9c3adf1a9dd10ce0d1c442b8784cb3e194576471cf05", kill_on_drop: false }`
[INFO] [stdout] 29a31649441f00e8e77c9c3adf1a9dd10ce0d1c442b8784cb3e194576471cf05
[INFO] checking convert-nonogram-0.1.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate convert-nonogram 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate convert-nonogram 0.1.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate convert-nonogram 0.1.2
[INFO] finished tweaking crates.io crate convert-nonogram 0.1.2
[INFO] tweaked toml for crates.io crate convert-nonogram 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate convert-nonogram 0.1.2 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0ffc61aeca3483b03c2e9aba56d7a7efecb3e3b8b4f9053b41aac7ad68fb07f
[INFO] running `Command { std: "docker" "start" "-a" "b0ffc61aeca3483b03c2e9aba56d7a7efecb3e3b8b4f9053b41aac7ad68fb07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ffc61aeca3483b03c2e9aba56d7a7efecb3e3b8b4f9053b41aac7ad68fb07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ffc61aeca3483b03c2e9aba56d7a7efecb3e3b8b4f9053b41aac7ad68fb07f", kill_on_drop: false }`
[INFO] [stdout] b0ffc61aeca3483b03c2e9aba56d7a7efecb3e3b8b4f9053b41aac7ad68fb07f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfa92fab6139392d342d4d132acaeba09d7b93cf2674b3a7d2291ef31bee488c
[INFO] running `Command { std: "docker" "start" "-a" "cfa92fab6139392d342d4d132acaeba09d7b93cf2674b3a7d2291ef31bee488c", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking image v0.23.11
[INFO] [stderr]     Checking convert-nonogram v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "cfa92fab6139392d342d4d132acaeba09d7b93cf2674b3a7d2291ef31bee488c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa92fab6139392d342d4d132acaeba09d7b93cf2674b3a7d2291ef31bee488c", kill_on_drop: false }`
[INFO] [stdout] cfa92fab6139392d342d4d132acaeba09d7b93cf2674b3a7d2291ef31bee488c