[INFO] fetching crate csv_ledger_lib 0.1.1...
[INFO] checking csv_ledger_lib-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate csv_ledger_lib 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate csv_ledger_lib 0.1.1 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 csv_ledger_lib 0.1.1
[INFO] finished tweaking crates.io crate csv_ledger_lib 0.1.1
[INFO] tweaked toml for crates.io crate csv_ledger_lib 0.1.1 written to /workspace/builds/worker-2-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 4 packages
[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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c8a2d98adde6d2e28721e8f10ab46ca6a7fb9f4aa45b9519b62799917812e915
[INFO] running `Command { std: "docker" "start" "-a" "c8a2d98adde6d2e28721e8f10ab46ca6a7fb9f4aa45b9519b62799917812e915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a2d98adde6d2e28721e8f10ab46ca6a7fb9f4aa45b9519b62799917812e915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a2d98adde6d2e28721e8f10ab46ca6a7fb9f4aa45b9519b62799917812e915", kill_on_drop: false }`
[INFO] [stdout] c8a2d98adde6d2e28721e8f10ab46ca6a7fb9f4aa45b9519b62799917812e915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 67a6d51e9452d7e4e62e7e92b6cf1eb5c6b35850f40d170a853f119d2f0f8872
[INFO] running `Command { std: "docker" "start" "-a" "67a6d51e9452d7e4e62e7e92b6cf1eb5c6b35850f40d170a853f119d2f0f8872", kill_on_drop: false }`
[INFO] [stderr]     Checking csv_ledger_lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tag` is imported redundantly
[INFO] [stdout]    --> src/parse.rs:407:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |     use super::*;
[INFO] [stdout]     |         -------- the item `tag` is already imported here
[INFO] [stdout] 407 |     use nom::bytes::complete::tag;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "67a6d51e9452d7e4e62e7e92b6cf1eb5c6b35850f40d170a853f119d2f0f8872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67a6d51e9452d7e4e62e7e92b6cf1eb5c6b35850f40d170a853f119d2f0f8872", kill_on_drop: false }`
[INFO] [stdout] 67a6d51e9452d7e4e62e7e92b6cf1eb5c6b35850f40d170a853f119d2f0f8872
[INFO] checking csv_ledger_lib-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate csv_ledger_lib 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate csv_ledger_lib 0.1.1 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 csv_ledger_lib 0.1.1
[INFO] finished tweaking crates.io crate csv_ledger_lib 0.1.1
[INFO] tweaked toml for crates.io crate csv_ledger_lib 0.1.1 written to /workspace/builds/worker-2-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 4 packages
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5e7fc2f03f643e48ad85c20b4ce80cd3ab3bc5c9700eee77a4d1d4145285232c
[INFO] running `Command { std: "docker" "start" "-a" "5e7fc2f03f643e48ad85c20b4ce80cd3ab3bc5c9700eee77a4d1d4145285232c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e7fc2f03f643e48ad85c20b4ce80cd3ab3bc5c9700eee77a4d1d4145285232c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7fc2f03f643e48ad85c20b4ce80cd3ab3bc5c9700eee77a4d1d4145285232c", kill_on_drop: false }`
[INFO] [stdout] 5e7fc2f03f643e48ad85c20b4ce80cd3ab3bc5c9700eee77a4d1d4145285232c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 391300f91e8f3d9509a1007e4af3fb3e1ea2441299a3dce476364aaf57997dfa
[INFO] running `Command { std: "docker" "start" "-a" "391300f91e8f3d9509a1007e4af3fb3e1ea2441299a3dce476364aaf57997dfa", kill_on_drop: false }`
[INFO] [stderr]     Checking csv_ledger_lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tag` is imported redundantly
[INFO] [stdout]    --> src/parse.rs:407:9
[INFO] [stdout]     |
[INFO] [stdout] 406 |     use super::*;
[INFO] [stdout]     |         -------- the item `tag` is already imported here
[INFO] [stdout] 407 |     use nom::bytes::complete::tag;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "391300f91e8f3d9509a1007e4af3fb3e1ea2441299a3dce476364aaf57997dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "391300f91e8f3d9509a1007e4af3fb3e1ea2441299a3dce476364aaf57997dfa", kill_on_drop: false }`
[INFO] [stdout] 391300f91e8f3d9509a1007e4af3fb3e1ea2441299a3dce476364aaf57997dfa