[INFO] fetching crate beancount-account 0.1.0...
[INFO] checking beancount-account-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate beancount-account 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate beancount-account 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 beancount-account 0.1.0
[INFO] finished tweaking crates.io crate beancount-account 0.1.0
[INFO] tweaked toml for crates.io crate beancount-account 0.1.0 written to /workspace/builds/worker-4-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 33 packages
[INFO] [stderr]       Adding delegate v0.10.0 (latest: v0.12.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding miette v5.10.0 (latest: v7.2.0)
[INFO] [stderr]       Adding miette-derive v5.10.0 (latest: v7.2.0)
[INFO] [stderr]       Adding snafu v0.7.5 (latest: v0.8.2)
[INFO] [stderr]       Adding snafu-derive v0.7.5 (latest: v0.8.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding watt v0.4.3 (latest: v0.5.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu-derive v0.7.5
[INFO] [stderr]   Downloaded test-case v3.3.1
[INFO] [stderr]   Downloaded test-case-macros v3.3.1
[INFO] [stderr]   Downloaded lazy-regex v3.1.0
[INFO] [stderr]   Downloaded snafu v0.7.5
[INFO] [stderr]   Downloaded delegate v0.10.0
[INFO] [stderr]   Downloaded lazy-regex-proc_macros v3.1.0
[INFO] [stderr]   Downloaded test-case-core v3.3.1
[INFO] [stderr]   Downloaded watt v0.4.3
[INFO] [stderr]   Downloaded momo v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cf0f94693ab870a6339f4e3bab6de0ff0a2981c82738548234cc79e794d49f90
[INFO] running `Command { std: "docker" "start" "-a" "cf0f94693ab870a6339f4e3bab6de0ff0a2981c82738548234cc79e794d49f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf0f94693ab870a6339f4e3bab6de0ff0a2981c82738548234cc79e794d49f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0f94693ab870a6339f4e3bab6de0ff0a2981c82738548234cc79e794d49f90", kill_on_drop: false }`
[INFO] [stdout] cf0f94693ab870a6339f4e3bab6de0ff0a2981c82738548234cc79e794d49f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6823e69c3b8a578d9fa71daf93d8678a08f958581abc96d6499a9ff3c070ec28
[INFO] running `Command { std: "docker" "start" "-a" "6823e69c3b8a578d9fa71daf93d8678a08f958581abc96d6499a9ff3c070ec28", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling watt v0.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling momo v0.2.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling test-case-core v3.3.1
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling delegate v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling miette-derive v5.10.0
[INFO] [stderr]    Compiling test-case-macros v3.3.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking test-case v3.3.1
[INFO] [stderr]    Compiling lazy-regex-proc_macros v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking miette v5.10.0
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking lazy-regex v3.1.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking beancount-account v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "6823e69c3b8a578d9fa71daf93d8678a08f958581abc96d6499a9ff3c070ec28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6823e69c3b8a578d9fa71daf93d8678a08f958581abc96d6499a9ff3c070ec28", kill_on_drop: false }`
[INFO] [stdout] 6823e69c3b8a578d9fa71daf93d8678a08f958581abc96d6499a9ff3c070ec28
[INFO] checking beancount-account-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate beancount-account 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate beancount-account 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 beancount-account 0.1.0
[INFO] finished tweaking crates.io crate beancount-account 0.1.0
[INFO] tweaked toml for crates.io crate beancount-account 0.1.0 written to /workspace/builds/worker-4-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 33 packages
[INFO] [stderr]       Adding delegate v0.10.0 (latest: v0.12.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding miette v5.10.0 (latest: v7.2.0)
[INFO] [stderr]       Adding miette-derive v5.10.0 (latest: v7.2.0)
[INFO] [stderr]       Adding snafu v0.7.5 (latest: v0.8.2)
[INFO] [stderr]       Adding snafu-derive v0.7.5 (latest: v0.8.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding watt v0.4.3 (latest: v0.5.0)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a96ea1c1db24bcb47cb101b5b6c2f3c2b4bd5d44d91b0d38edf7ef1ce039f2d6
[INFO] running `Command { std: "docker" "start" "-a" "a96ea1c1db24bcb47cb101b5b6c2f3c2b4bd5d44d91b0d38edf7ef1ce039f2d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a96ea1c1db24bcb47cb101b5b6c2f3c2b4bd5d44d91b0d38edf7ef1ce039f2d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a96ea1c1db24bcb47cb101b5b6c2f3c2b4bd5d44d91b0d38edf7ef1ce039f2d6", kill_on_drop: false }`
[INFO] [stdout] a96ea1c1db24bcb47cb101b5b6c2f3c2b4bd5d44d91b0d38edf7ef1ce039f2d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f886f4d0354c13af22cb9476068a1d7805211c443ec8fda1f91d6d719847aff8
[INFO] running `Command { std: "docker" "start" "-a" "f886f4d0354c13af22cb9476068a1d7805211c443ec8fda1f91d6d719847aff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling watt v0.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling momo v0.2.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling test-case-core v3.3.1
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling delegate v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling miette-derive v5.10.0
[INFO] [stderr]    Compiling test-case-macros v3.3.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking test-case v3.3.1
[INFO] [stderr]    Compiling lazy-regex-proc_macros v3.1.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking miette v5.10.0
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking lazy-regex v3.1.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking beancount-account v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `Command { std: "docker" "inspect" "f886f4d0354c13af22cb9476068a1d7805211c443ec8fda1f91d6d719847aff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f886f4d0354c13af22cb9476068a1d7805211c443ec8fda1f91d6d719847aff8", kill_on_drop: false }`
[INFO] [stdout] f886f4d0354c13af22cb9476068a1d7805211c443ec8fda1f91d6d719847aff8