[INFO] fetching crate fus 0.1.7...
[INFO] checking fus-0.1.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fus 0.1.7 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate fus 0.1.7 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 fus 0.1.7
[INFO] finished tweaking crates.io crate fus 0.1.7
[INFO] tweaked toml for crates.io crate fus 0.1.7 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate fus 0.1.7 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 doe v0.1.42
[INFO] [stderr]   Downloaded wild v2.1.0
[INFO] [stderr]   Downloaded rustls v0.21.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 835afec1b2adf7ebd72052f18303d5a0b07ef85396b17d132d8996288864f526
[INFO] running `Command { std: "docker" "start" "-a" "835afec1b2adf7ebd72052f18303d5a0b07ef85396b17d132d8996288864f526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "835afec1b2adf7ebd72052f18303d5a0b07ef85396b17d132d8996288864f526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835afec1b2adf7ebd72052f18303d5a0b07ef85396b17d132d8996288864f526", kill_on_drop: false }`
[INFO] [stdout] 835afec1b2adf7ebd72052f18303d5a0b07ef85396b17d132d8996288864f526
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30cfd62426916cfc24a052e222fab03d7770592d7adcb57227d98d4ddff6a9ce
[INFO] running `Command { std: "docker" "start" "-a" "30cfd62426916cfc24a052e222fab03d7770592d7adcb57227d98d4ddff6a9ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rustls v0.21.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.23.1
[INFO] [stderr]     Checking ureq v2.7.1
[INFO] [stderr]     Checking doe v0.1.42
[INFO] [stderr]     Checking fus v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "30cfd62426916cfc24a052e222fab03d7770592d7adcb57227d98d4ddff6a9ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30cfd62426916cfc24a052e222fab03d7770592d7adcb57227d98d4ddff6a9ce", kill_on_drop: false }`
[INFO] [stdout] 30cfd62426916cfc24a052e222fab03d7770592d7adcb57227d98d4ddff6a9ce
[INFO] checking fus-0.1.7 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate fus 0.1.7 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate fus 0.1.7 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 fus 0.1.7
[INFO] finished tweaking crates.io crate fus 0.1.7
[INFO] tweaked toml for crates.io crate fus 0.1.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate fus 0.1.7 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7f32a0698a03ab863b6da0c13ec85253a14f482a7c6890acc677510ee305526d
[INFO] running `Command { std: "docker" "start" "-a" "7f32a0698a03ab863b6da0c13ec85253a14f482a7c6890acc677510ee305526d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f32a0698a03ab863b6da0c13ec85253a14f482a7c6890acc677510ee305526d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f32a0698a03ab863b6da0c13ec85253a14f482a7c6890acc677510ee305526d", kill_on_drop: false }`
[INFO] [stdout] 7f32a0698a03ab863b6da0c13ec85253a14f482a7c6890acc677510ee305526d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f84b60e2dece24137cf3acc92e4565563b609f320044f60792464a08214b4428
[INFO] running `Command { std: "docker" "start" "-a" "f84b60e2dece24137cf3acc92e4565563b609f320044f60792464a08214b4428", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rustls v0.21.2
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.23.1
[INFO] [stderr]     Checking ureq v2.7.1
[INFO] [stderr]     Checking doe v0.1.42
[INFO] [stderr]     Checking fus v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "f84b60e2dece24137cf3acc92e4565563b609f320044f60792464a08214b4428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f84b60e2dece24137cf3acc92e4565563b609f320044f60792464a08214b4428", kill_on_drop: false }`
[INFO] [stdout] f84b60e2dece24137cf3acc92e4565563b609f320044f60792464a08214b4428