[INFO] fetching crate jtar 0.1.0...
[INFO] checking jtar-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate jtar 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate jtar 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 jtar 0.1.0
[INFO] finished tweaking crates.io crate jtar 0.1.0
[INFO] tweaked toml for crates.io crate jtar 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[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] 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] 7460d8d673f19170dc16c5ea7948ce49842f09b992ec650069effa60a67b1644
[INFO] running `Command { std: "docker" "start" "-a" "7460d8d673f19170dc16c5ea7948ce49842f09b992ec650069effa60a67b1644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7460d8d673f19170dc16c5ea7948ce49842f09b992ec650069effa60a67b1644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7460d8d673f19170dc16c5ea7948ce49842f09b992ec650069effa60a67b1644", kill_on_drop: false }`
[INFO] [stdout] 7460d8d673f19170dc16c5ea7948ce49842f09b992ec650069effa60a67b1644
[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] ccf9418c5ca48580ded6c73c3263273bf097a2de70f251d152999f63569c34f9
[INFO] running `Command { std: "docker" "start" "-a" "ccf9418c5ca48580ded6c73c3263273bf097a2de70f251d152999f63569c34f9", kill_on_drop: false }`
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking jtar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SystemTime` is never constructed
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SystemTime {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileType` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct FileType {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Permissions` is never constructed
[INFO] [stdout]   --> src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Permissions {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Metadata` is never constructed
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Metadata {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemTime` is never constructed
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SystemTime {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileType` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct FileType {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Permissions` is never constructed
[INFO] [stdout]   --> src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Permissions {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Metadata` is never constructed
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Metadata {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "ccf9418c5ca48580ded6c73c3263273bf097a2de70f251d152999f63569c34f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf9418c5ca48580ded6c73c3263273bf097a2de70f251d152999f63569c34f9", kill_on_drop: false }`
[INFO] [stdout] ccf9418c5ca48580ded6c73c3263273bf097a2de70f251d152999f63569c34f9
[INFO] checking jtar-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate jtar 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate jtar 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 jtar 0.1.0
[INFO] finished tweaking crates.io crate jtar 0.1.0
[INFO] tweaked toml for crates.io crate jtar 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[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] f7c64c3a0e45ed84da0da8e56c16a81c7bf1bde800300d54affece3e20dbd4c7
[INFO] running `Command { std: "docker" "start" "-a" "f7c64c3a0e45ed84da0da8e56c16a81c7bf1bde800300d54affece3e20dbd4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c64c3a0e45ed84da0da8e56c16a81c7bf1bde800300d54affece3e20dbd4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c64c3a0e45ed84da0da8e56c16a81c7bf1bde800300d54affece3e20dbd4c7", kill_on_drop: false }`
[INFO] [stdout] f7c64c3a0e45ed84da0da8e56c16a81c7bf1bde800300d54affece3e20dbd4c7
[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] 4056e9458239035a9764fc469f71238a644fc3440da9f3e090751369a637d788
[INFO] running `Command { std: "docker" "start" "-a" "4056e9458239035a9764fc469f71238a644fc3440da9f3e090751369a637d788", kill_on_drop: false }`
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking jtar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SystemTime` is never constructed
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SystemTime {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileType` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct FileType {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Permissions` is never constructed
[INFO] [stdout]   --> src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Permissions {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Metadata` is never constructed
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Metadata {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemTime` is never constructed
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SystemTime {}
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileType` is never constructed
[INFO] [stdout]   --> src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct FileType {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Permissions` is never constructed
[INFO] [stdout]   --> src/lib.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Permissions {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Metadata` is never constructed
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Metadata {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "4056e9458239035a9764fc469f71238a644fc3440da9f3e090751369a637d788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4056e9458239035a9764fc469f71238a644fc3440da9f3e090751369a637d788", kill_on_drop: false }`
[INFO] [stdout] 4056e9458239035a9764fc469f71238a644fc3440da9f3e090751369a637d788