[INFO] fetching crate mknft 0.1.0...
[INFO] checking mknft-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate mknft 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mknft 0.1.0 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 mknft 0.1.0
[INFO] finished tweaking crates.io crate mknft 0.1.0
[INFO] tweaked toml for crates.io crate mknft 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mknft 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded bytemuck v1.7.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded serde_json v1.0.71
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded weezl v0.1.5
[INFO] [stderr]   Downloaded simple-error v0.2.3
[INFO] [stderr]   Downloaded simple_logger v1.13.0
[INFO] [stderr]   Downloaded gif v0.11.3
[INFO] [stderr]   Downloaded psd v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 38353ba22c6e57b0533e19265183578309b6c219304bd18e6f2626f0ea3d289b
[INFO] running `Command { std: "docker" "start" "-a" "38353ba22c6e57b0533e19265183578309b6c219304bd18e6f2626f0ea3d289b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38353ba22c6e57b0533e19265183578309b6c219304bd18e6f2626f0ea3d289b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38353ba22c6e57b0533e19265183578309b6c219304bd18e6f2626f0ea3d289b", kill_on_drop: false }`
[INFO] [stdout] 38353ba22c6e57b0533e19265183578309b6c219304bd18e6f2626f0ea3d289b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cfad4ef4e698faf3d6535fbdcfc48d2e7fef2eb8c11927e1e3aa5336612158d0
[INFO] running `Command { std: "docker" "start" "-a" "cfad4ef4e698faf3d6535fbdcfc48d2e7fef2eb8c11927e1e3aa5336612158d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking simple_logger v1.13.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking psd v0.2.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking mknft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.52s
[INFO] running `Command { std: "docker" "inspect" "cfad4ef4e698faf3d6535fbdcfc48d2e7fef2eb8c11927e1e3aa5336612158d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfad4ef4e698faf3d6535fbdcfc48d2e7fef2eb8c11927e1e3aa5336612158d0", kill_on_drop: false }`
[INFO] [stdout] cfad4ef4e698faf3d6535fbdcfc48d2e7fef2eb8c11927e1e3aa5336612158d0
[INFO] checking mknft-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate mknft 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate mknft 0.1.0 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 mknft 0.1.0
[INFO] finished tweaking crates.io crate mknft 0.1.0
[INFO] tweaked toml for crates.io crate mknft 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate mknft 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0487bd907d1a91a0ff908147181c4e506fa5e598f66a6bf9d4ce095b0c1c09c2
[INFO] running `Command { std: "docker" "start" "-a" "0487bd907d1a91a0ff908147181c4e506fa5e598f66a6bf9d4ce095b0c1c09c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0487bd907d1a91a0ff908147181c4e506fa5e598f66a6bf9d4ce095b0c1c09c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0487bd907d1a91a0ff908147181c4e506fa5e598f66a6bf9d4ce095b0c1c09c2", kill_on_drop: false }`
[INFO] [stdout] 0487bd907d1a91a0ff908147181c4e506fa5e598f66a6bf9d4ce095b0c1c09c2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0500c40259eafc0ff375fec6cb2299b725fdd65aba3f7a821ed4f1ae65a0cb97
[INFO] running `Command { std: "docker" "start" "-a" "0500c40259eafc0ff375fec6cb2299b725fdd65aba3f7a821ed4f1ae65a0cb97", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking simple_logger v1.13.0
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking psd v0.2.0
[INFO] [stderr]     Checking mknft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.11s
[INFO] running `Command { std: "docker" "inspect" "0500c40259eafc0ff375fec6cb2299b725fdd65aba3f7a821ed4f1ae65a0cb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0500c40259eafc0ff375fec6cb2299b725fdd65aba3f7a821ed4f1ae65a0cb97", kill_on_drop: false }`
[INFO] [stdout] 0500c40259eafc0ff375fec6cb2299b725fdd65aba3f7a821ed4f1ae65a0cb97