[INFO] fetching crate dont_disappear 3.0.1...
[INFO] checking dont_disappear-3.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate dont_disappear 3.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate dont_disappear 3.0.1 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 dont_disappear 3.0.1
[INFO] finished tweaking crates.io crate dont_disappear 3.0.1
[INFO] tweaked toml for crates.io crate dont_disappear 3.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate dont_disappear 3.0.1 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 crossterm_utils v0.1.0
[INFO] [stderr]   Downloaded crossterm_screen v0.1.0
[INFO] [stderr]   Downloaded crossterm_cursor v0.1.0
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded crossterm_terminal v0.1.0
[INFO] [stderr]   Downloaded crossterm_style v0.2.0
[INFO] [stderr]   Downloaded crossterm_input v0.2.1
[INFO] [stderr]   Downloaded crossterm_winapi v0.1.5
[INFO] [stderr]   Downloaded crossterm v0.8.2
[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] 4ab63528ff1ffe56e3dbcb7b8894e202a5d6dda1d0a87aa88410da01b5578aed
[INFO] running `Command { std: "docker" "start" "-a" "4ab63528ff1ffe56e3dbcb7b8894e202a5d6dda1d0a87aa88410da01b5578aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ab63528ff1ffe56e3dbcb7b8894e202a5d6dda1d0a87aa88410da01b5578aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab63528ff1ffe56e3dbcb7b8894e202a5d6dda1d0a87aa88410da01b5578aed", kill_on_drop: false }`
[INFO] [stdout] 4ab63528ff1ffe56e3dbcb7b8894e202a5d6dda1d0a87aa88410da01b5578aed
[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] ef479d1d0149cddd00fca35099d5e29b512979de0507a8d4df2fb72e0cf493fc
[INFO] running `Command { std: "docker" "start" "-a" "ef479d1d0149cddd00fca35099d5e29b512979de0507a8d4df2fb72e0cf493fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking crossterm_utils v0.1.0
[INFO] [stderr]     Checking crossterm_cursor v0.1.0
[INFO] [stderr]     Checking crossterm_screen v0.1.0
[INFO] [stderr]     Checking crossterm_style v0.2.0
[INFO] [stderr]     Checking crossterm_terminal v0.1.0
[INFO] [stderr]     Checking crossterm_input v0.2.1
[INFO] [stderr]     Checking crossterm v0.8.2
[INFO] [stderr]     Checking dont_disappear v3.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "ef479d1d0149cddd00fca35099d5e29b512979de0507a8d4df2fb72e0cf493fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef479d1d0149cddd00fca35099d5e29b512979de0507a8d4df2fb72e0cf493fc", kill_on_drop: false }`
[INFO] [stdout] ef479d1d0149cddd00fca35099d5e29b512979de0507a8d4df2fb72e0cf493fc
[INFO] checking dont_disappear-3.0.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate dont_disappear 3.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate dont_disappear 3.0.1 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 dont_disappear 3.0.1
[INFO] finished tweaking crates.io crate dont_disappear 3.0.1
[INFO] tweaked toml for crates.io crate dont_disappear 3.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate dont_disappear 3.0.1 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] 5ccc19bbdc7312ca79cce899e2334e6ed88f1e19d26f32dddcad4916f71d602b
[INFO] running `Command { std: "docker" "start" "-a" "5ccc19bbdc7312ca79cce899e2334e6ed88f1e19d26f32dddcad4916f71d602b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ccc19bbdc7312ca79cce899e2334e6ed88f1e19d26f32dddcad4916f71d602b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ccc19bbdc7312ca79cce899e2334e6ed88f1e19d26f32dddcad4916f71d602b", kill_on_drop: false }`
[INFO] [stdout] 5ccc19bbdc7312ca79cce899e2334e6ed88f1e19d26f32dddcad4916f71d602b
[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] 12e3fb5ea1eee305ba44ae25869f2b7cdfdfebb785faf661a69b2cc902631bdb
[INFO] running `Command { std: "docker" "start" "-a" "12e3fb5ea1eee305ba44ae25869f2b7cdfdfebb785faf661a69b2cc902631bdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking crossterm_utils v0.1.0
[INFO] [stderr]     Checking crossterm_screen v0.1.0
[INFO] [stderr]     Checking crossterm_cursor v0.1.0
[INFO] [stderr]     Checking crossterm_style v0.2.0
[INFO] [stderr]     Checking crossterm_input v0.2.1
[INFO] [stderr]     Checking crossterm_terminal v0.1.0
[INFO] [stderr]     Checking crossterm v0.8.2
[INFO] [stderr]     Checking dont_disappear v3.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "12e3fb5ea1eee305ba44ae25869f2b7cdfdfebb785faf661a69b2cc902631bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12e3fb5ea1eee305ba44ae25869f2b7cdfdfebb785faf661a69b2cc902631bdb", kill_on_drop: false }`
[INFO] [stdout] 12e3fb5ea1eee305ba44ae25869f2b7cdfdfebb785faf661a69b2cc902631bdb