[INFO] fetching crate dwarfdump 0.1.0...
[INFO] checking dwarfdump-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate dwarfdump 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dwarfdump 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 dwarfdump 0.1.0
[INFO] finished tweaking crates.io crate dwarfdump 0.1.0
[INFO] tweaked toml for crates.io crate dwarfdump 0.1.0 written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 packages
[INFO] [stderr]       Adding arrayvec v0.3.25 (latest: v0.7.4)
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding fallible-iterator v0.1.6 (latest: v0.3.0)
[INFO] [stderr]       Adding fs2 v0.2.5 (latest: v0.4.3)
[INFO] [stderr]       Adding gimli v0.13.0 (latest: v0.28.1)
[INFO] [stderr]       Adding memmap v0.4.0 (latest: v0.7.0)
[INFO] [stderr]       Adding object v0.3.0 (latest: v0.34.0)
[INFO] [stderr]       Adding odds v0.2.26 (latest: v0.4.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding xmas-elf v0.4.0 (latest: v0.9.1)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mach_o_sys v0.1.1
[INFO] [stderr]   Downloaded fallible-iterator v0.1.6
[INFO] [stderr]   Downloaded fs2 v0.2.5
[INFO] [stderr]   Downloaded zero v0.1.3
[INFO] [stderr]   Downloaded mach_o v0.1.2
[INFO] [stderr]   Downloaded gimli v0.13.0
[INFO] [stderr]   Downloaded object v0.3.0
[INFO] [stderr]   Downloaded memmap v0.4.0
[INFO] [stderr]   Downloaded xmas-elf v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cbfd8927830b48564f54f08f3f7da2b0980d904a8ecd6700f78a4acbf737c909
[INFO] running `Command { std: "docker" "start" "-a" "cbfd8927830b48564f54f08f3f7da2b0980d904a8ecd6700f78a4acbf737c909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbfd8927830b48564f54f08f3f7da2b0980d904a8ecd6700f78a4acbf737c909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfd8927830b48564f54f08f3f7da2b0980d904a8ecd6700f78a4acbf737c909", kill_on_drop: false }`
[INFO] [stdout] cbfd8927830b48564f54f08f3f7da2b0980d904a8ecd6700f78a4acbf737c909
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] af1d3ec235913d0ce13c07d9aa983ebfcf759ec0f5285d030d2c5e6db4a86f49
[INFO] running `Command { std: "docker" "start" "-a" "af1d3ec235913d0ce13c07d9aa983ebfcf759ec0f5285d030d2c5e6db4a86f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking zero v0.1.3
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking xmas-elf v0.4.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking object v0.3.0
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking gimli v0.13.0
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking dwarfdump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "af1d3ec235913d0ce13c07d9aa983ebfcf759ec0f5285d030d2c5e6db4a86f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af1d3ec235913d0ce13c07d9aa983ebfcf759ec0f5285d030d2c5e6db4a86f49", kill_on_drop: false }`
[INFO] [stdout] af1d3ec235913d0ce13c07d9aa983ebfcf759ec0f5285d030d2c5e6db4a86f49
[INFO] checking dwarfdump-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate dwarfdump 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate dwarfdump 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 dwarfdump 0.1.0
[INFO] finished tweaking crates.io crate dwarfdump 0.1.0
[INFO] tweaked toml for crates.io crate dwarfdump 0.1.0 written to /workspace/builds/worker-3-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 21 packages
[INFO] [stderr]       Adding arrayvec v0.3.25 (latest: v0.7.4)
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding fallible-iterator v0.1.6 (latest: v0.3.0)
[INFO] [stderr]       Adding fs2 v0.2.5 (latest: v0.4.3)
[INFO] [stderr]       Adding gimli v0.13.0 (latest: v0.28.1)
[INFO] [stderr]       Adding memmap v0.4.0 (latest: v0.7.0)
[INFO] [stderr]       Adding object v0.3.0 (latest: v0.34.0)
[INFO] [stderr]       Adding odds v0.2.26 (latest: v0.4.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding xmas-elf v0.4.0 (latest: v0.9.1)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9f890804b2b5f8cee7a52af098347926a08e9a37a3fec0d8a3e4cd0cd011e9a9
[INFO] running `Command { std: "docker" "start" "-a" "9f890804b2b5f8cee7a52af098347926a08e9a37a3fec0d8a3e4cd0cd011e9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f890804b2b5f8cee7a52af098347926a08e9a37a3fec0d8a3e4cd0cd011e9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f890804b2b5f8cee7a52af098347926a08e9a37a3fec0d8a3e4cd0cd011e9a9", kill_on_drop: false }`
[INFO] [stdout] 9f890804b2b5f8cee7a52af098347926a08e9a37a3fec0d8a3e4cd0cd011e9a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9697737b568293ac7d6461ec3315a37e5cf7cfebcc56543e2428547955722791
[INFO] running `Command { std: "docker" "start" "-a" "9697737b568293ac7d6461ec3315a37e5cf7cfebcc56543e2428547955722791", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking zero v0.1.3
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking leb128 v0.2.5
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking xmas-elf v0.4.0
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking object v0.3.0
[INFO] [stderr]     Checking gimli v0.13.0
[INFO] [stderr]     Checking dwarfdump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "9697737b568293ac7d6461ec3315a37e5cf7cfebcc56543e2428547955722791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9697737b568293ac7d6461ec3315a37e5cf7cfebcc56543e2428547955722791", kill_on_drop: false }`
[INFO] [stdout] 9697737b568293ac7d6461ec3315a37e5cf7cfebcc56543e2428547955722791