[INFO] cloning repository https://github.com/clechasseur/cargo-msrv-prep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clechasseur/cargo-msrv-prep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclechasseur%2Fcargo-msrv-prep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclechasseur%2Fcargo-msrv-prep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 759dd6966b2e9051a87ab58a6e64a9f7dfa646a7
[INFO] checking clechasseur/cargo-msrv-prep against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclechasseur%2Fcargo-msrv-prep" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clechasseur/cargo-msrv-prep 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 git repo https://github.com/clechasseur/cargo-msrv-prep
[INFO] finished tweaking git repo https://github.com/clechasseur/cargo-msrv-prep
[INFO] tweaked toml for git repo https://github.com/clechasseur/cargo-msrv-prep written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/clechasseur/cargo-msrv-prep 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 assert_fs v1.1.1
[INFO] [stderr]   Downloaded globwalk v0.9.1
[INFO] [stderr]   Downloaded clap-cargo v0.13.0
[INFO] [stderr]   Downloaded clap-verbosity-flag v2.2.0
[INFO] [stderr]   Downloaded mockall_double v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 06b1d57b2914a7e7adf5bb780b2d6d01cbeeb231fb2ac7d879dd6a4221037336
[INFO] running `Command { std: "docker" "start" "-a" "06b1d57b2914a7e7adf5bb780b2d6d01cbeeb231fb2ac7d879dd6a4221037336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06b1d57b2914a7e7adf5bb780b2d6d01cbeeb231fb2ac7d879dd6a4221037336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b1d57b2914a7e7adf5bb780b2d6d01cbeeb231fb2ac7d879dd6a4221037336", kill_on_drop: false }`
[INFO] [stdout] 06b1d57b2914a7e7adf5bb780b2d6d01cbeeb231fb2ac7d879dd6a4221037336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8f947f803f3116625ff2bb9500a84105d5c9baa63b0193cef20cf1c8f4d3fdf0
[INFO] running `Command { std: "docker" "start" "-a" "8f947f803f3116625ff2bb9500a84105d5c9baa63b0193cef20cf1c8f4d3fdf0", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking anstream v0.6.13
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling assert_cmd v2.0.14
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling mockall_double v0.3.1
[INFO] [stderr]    Compiling test-log-macros v0.2.15
[INFO] [stderr]    Compiling mockall_derive v0.12.1
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]     Checking env_logger v0.11.2
[INFO] [stderr]     Checking test-log v0.2.15
[INFO] [stderr]     Checking globset v0.4.14
[INFO] [stderr]     Checking ignore v0.4.22
[INFO] [stderr]     Checking globwalk v0.9.1
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking clap-verbosity-flag v2.2.0
[INFO] [stderr]     Checking assert_fs v1.1.1
[INFO] [stderr]     Checking mockall v0.12.1
[INFO] [stderr]     Checking cargo-platform v0.1.7
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking toml_edit v0.22.9
[INFO] [stderr]     Checking cargo_metadata v0.18.1
[INFO] [stderr]     Checking clap-cargo v0.13.0
[INFO] [stderr]     Checking toml v0.8.12
[INFO] [stderr]     Checking cargo-msrv-prep v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.47s
[INFO] running `Command { std: "docker" "inspect" "8f947f803f3116625ff2bb9500a84105d5c9baa63b0193cef20cf1c8f4d3fdf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f947f803f3116625ff2bb9500a84105d5c9baa63b0193cef20cf1c8f4d3fdf0", kill_on_drop: false }`
[INFO] [stdout] 8f947f803f3116625ff2bb9500a84105d5c9baa63b0193cef20cf1c8f4d3fdf0