[INFO] fetching crate cbdr 0.2.4...
[INFO] checking cbdr-0.2.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cbdr 0.2.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cbdr 0.2.4 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 cbdr 0.2.4
[INFO] finished tweaking crates.io crate cbdr 0.2.4
[INFO] tweaked toml for crates.io crate cbdr 0.2.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cbdr 0.2.4 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 liveterm v0.3.0
[INFO] [stderr]   Downloaded time-cmd v0.1.0
[INFO] [stderr]   Downloaded vte_generate_state_changes v0.1.1
[INFO] [stderr]   Downloaded behrens-fisher v0.2.0
[INFO] [stderr]   Downloaded special v0.8.1
[INFO] [stderr]   Downloaded crossterm_winapi v0.8.0
[INFO] [stderr]   Downloaded tabwriter v1.2.1
[INFO] [stderr]   Downloaded anyhow v1.0.50
[INFO] [stderr]   Downloaded arc-swap v1.5.0
[INFO] [stderr]   Downloaded crossterm v0.20.0
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] [stderr]   Downloaded serde_json v1.0.72
[INFO] [stderr]   Downloaded env_logger v0.9.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded vte v0.10.1
[INFO] [stderr]   Downloaded once_cell v1.8.0
[INFO] [stderr]   Downloaded ryu v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0fe0c155f920614c26bd5ccbf46c435379ef603993aeac5fb375d6937ed93a8c
[INFO] running `Command { std: "docker" "start" "-a" "0fe0c155f920614c26bd5ccbf46c435379ef603993aeac5fb375d6937ed93a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe0c155f920614c26bd5ccbf46c435379ef603993aeac5fb375d6937ed93a8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe0c155f920614c26bd5ccbf46c435379ef603993aeac5fb375d6937ed93a8c", kill_on_drop: false }`
[INFO] [stdout] 0fe0c155f920614c26bd5ccbf46c435379ef603993aeac5fb375d6937ed93a8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4d6952602c42cecd479ae7227b36b31dd023cc56a04c938c6ea4d89f685848dc
[INFO] running `Command { std: "docker" "start" "-a" "4d6952602c42cecd479ae7227b36b31dd023cc56a04c938c6ea4d89f685848dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling anyhow v1.0.50
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking signal-hook v0.3.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking behrens-fisher v0.2.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking time-cmd v0.1.0
[INFO] [stderr]     Checking arc-swap v1.5.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking liveterm v0.3.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking cbdr v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `Command { std: "docker" "inspect" "4d6952602c42cecd479ae7227b36b31dd023cc56a04c938c6ea4d89f685848dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6952602c42cecd479ae7227b36b31dd023cc56a04c938c6ea4d89f685848dc", kill_on_drop: false }`
[INFO] [stdout] 4d6952602c42cecd479ae7227b36b31dd023cc56a04c938c6ea4d89f685848dc
[INFO] checking cbdr-0.2.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cbdr 0.2.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate cbdr 0.2.4 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 cbdr 0.2.4
[INFO] finished tweaking crates.io crate cbdr 0.2.4
[INFO] tweaked toml for crates.io crate cbdr 0.2.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate cbdr 0.2.4 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] be983f45d597e8f570f5126b3fc5101942984416318b71232db3c4e2949533c6
[INFO] running `Command { std: "docker" "start" "-a" "be983f45d597e8f570f5126b3fc5101942984416318b71232db3c4e2949533c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be983f45d597e8f570f5126b3fc5101942984416318b71232db3c4e2949533c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be983f45d597e8f570f5126b3fc5101942984416318b71232db3c4e2949533c6", kill_on_drop: false }`
[INFO] [stdout] be983f45d597e8f570f5126b3fc5101942984416318b71232db3c4e2949533c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c0cc18465b1785d6d2538d3e37407a825567ad59ebb9a12abee3ec99f114e842
[INFO] running `Command { std: "docker" "start" "-a" "c0cc18465b1785d6d2538d3e37407a825567ad59ebb9a12abee3ec99f114e842", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling anyhow v1.0.50
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking signal-hook v0.3.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking behrens-fisher v0.2.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking liveterm v0.3.0
[INFO] [stderr]     Checking time-cmd v0.1.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking arc-swap v1.5.0
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking cbdr v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "c0cc18465b1785d6d2538d3e37407a825567ad59ebb9a12abee3ec99f114e842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0cc18465b1785d6d2538d3e37407a825567ad59ebb9a12abee3ec99f114e842", kill_on_drop: false }`
[INFO] [stdout] c0cc18465b1785d6d2538d3e37407a825567ad59ebb9a12abee3ec99f114e842