[INFO] fetching crate git-smart-checkout 0.1.3...
[INFO] checking git-smart-checkout-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate git-smart-checkout 0.1.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate git-smart-checkout 0.1.3 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 git-smart-checkout 0.1.3
[INFO] finished tweaking crates.io crate git-smart-checkout 0.1.3
[INFO] tweaked toml for crates.io crate git-smart-checkout 0.1.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate git-smart-checkout 0.1.3 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 fuzzy-matcher v0.3.7
[INFO] [stderr]   Downloaded anyhow v1.0.53
[INFO] [stderr]   Downloaded ctrlc v3.2.1
[INFO] [stderr]   Downloaded zeroize v1.5.2
[INFO] [stderr]   Downloaded nix v0.23.1
[INFO] [stderr]   Downloaded dialoguer v0.10.0
[INFO] [stderr]   Downloaded libc v0.2.117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 026c62279ac2932d96e05643d3e6cb1d583cc19cc354b2e32d1f049d496b94d5
[INFO] running `Command { std: "docker" "start" "-a" "026c62279ac2932d96e05643d3e6cb1d583cc19cc354b2e32d1f049d496b94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "026c62279ac2932d96e05643d3e6cb1d583cc19cc354b2e32d1f049d496b94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026c62279ac2932d96e05643d3e6cb1d583cc19cc354b2e32d1f049d496b94d5", kill_on_drop: false }`
[INFO] [stdout] 026c62279ac2932d96e05643d3e6cb1d583cc19cc354b2e32d1f049d496b94d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0acdbf24fe1561ef6f97f6e3b277e2db993ca3ee29824554ebcada6b2fa8c214
[INFO] running `Command { std: "docker" "start" "-a" "0acdbf24fe1561ef6f97f6e3b277e2db993ca3ee29824554ebcada6b2fa8c214", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking zeroize v1.5.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking dialoguer v0.10.0
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking git-smart-checkout v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `Command { std: "docker" "inspect" "0acdbf24fe1561ef6f97f6e3b277e2db993ca3ee29824554ebcada6b2fa8c214", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0acdbf24fe1561ef6f97f6e3b277e2db993ca3ee29824554ebcada6b2fa8c214", kill_on_drop: false }`
[INFO] [stdout] 0acdbf24fe1561ef6f97f6e3b277e2db993ca3ee29824554ebcada6b2fa8c214
[INFO] checking git-smart-checkout-0.1.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate git-smart-checkout 0.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate git-smart-checkout 0.1.3 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 git-smart-checkout 0.1.3
[INFO] finished tweaking crates.io crate git-smart-checkout 0.1.3
[INFO] tweaked toml for crates.io crate git-smart-checkout 0.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate git-smart-checkout 0.1.3 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9d58dd7c36bcfd335d3b21d5cd5117b9736dce178e66a4556a3ef9081534efc2
[INFO] running `Command { std: "docker" "start" "-a" "9d58dd7c36bcfd335d3b21d5cd5117b9736dce178e66a4556a3ef9081534efc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d58dd7c36bcfd335d3b21d5cd5117b9736dce178e66a4556a3ef9081534efc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d58dd7c36bcfd335d3b21d5cd5117b9736dce178e66a4556a3ef9081534efc2", kill_on_drop: false }`
[INFO] [stdout] 9d58dd7c36bcfd335d3b21d5cd5117b9736dce178e66a4556a3ef9081534efc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 241e584fb613e9a2237b495129c1e1af8290efa99595f43a22b240243b6e96de
[INFO] running `Command { std: "docker" "start" "-a" "241e584fb613e9a2237b495129c1e1af8290efa99595f43a22b240243b6e96de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking zeroize v1.5.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking dialoguer v0.10.0
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking git-smart-checkout v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `Command { std: "docker" "inspect" "241e584fb613e9a2237b495129c1e1af8290efa99595f43a22b240243b6e96de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "241e584fb613e9a2237b495129c1e1af8290efa99595f43a22b240243b6e96de", kill_on_drop: false }`
[INFO] [stdout] 241e584fb613e9a2237b495129c1e1af8290efa99595f43a22b240243b6e96de