[INFO] cloning repository https://github.com/thekvs/mail-pinger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thekvs/mail-pinger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekvs%2Fmail-pinger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekvs%2Fmail-pinger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fe6944b33fcc3a4bca9bd7dcab8b589944a1fd8
[INFO] checking thekvs/mail-pinger against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekvs%2Fmail-pinger" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thekvs/mail-pinger 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/thekvs/mail-pinger
[INFO] finished tweaking git repo https://github.com/thekvs/mail-pinger
[INFO] tweaked toml for git repo https://github.com/thekvs/mail-pinger written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thekvs/mail-pinger 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 imap v2.4.1
[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] 734ef0332489ceec47ff80588cd357cc9549a96c49b9d918c267f309e16cc67a
[INFO] running `Command { std: "docker" "start" "-a" "734ef0332489ceec47ff80588cd357cc9549a96c49b9d918c267f309e16cc67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "734ef0332489ceec47ff80588cd357cc9549a96c49b9d918c267f309e16cc67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734ef0332489ceec47ff80588cd357cc9549a96c49b9d918c267f309e16cc67a", kill_on_drop: false }`
[INFO] [stdout] 734ef0332489ceec47ff80588cd357cc9549a96c49b9d918c267f309e16cc67a
[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] 92ef34e2af9f94eb89873a9ee71c5ac6585980d42fa35aa754e00b81bb620dee
[INFO] running `Command { std: "docker" "start" "-a" "92ef34e2af9f94eb89873a9ee71c5ac6585980d42fa35aa754e00b81bb620dee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking chrono v0.4.34
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking imap-proto v0.10.2
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking imap v2.4.1
[INFO] [stderr]     Checking mail-pinger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.98s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: imap-proto v0.10.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "92ef34e2af9f94eb89873a9ee71c5ac6585980d42fa35aa754e00b81bb620dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ef34e2af9f94eb89873a9ee71c5ac6585980d42fa35aa754e00b81bb620dee", kill_on_drop: false }`
[INFO] [stdout] 92ef34e2af9f94eb89873a9ee71c5ac6585980d42fa35aa754e00b81bb620dee
[INFO] checking thekvs/mail-pinger against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthekvs%2Fmail-pinger" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thekvs/mail-pinger on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thekvs/mail-pinger
[INFO] finished tweaking git repo https://github.com/thekvs/mail-pinger
[INFO] tweaked toml for git repo https://github.com/thekvs/mail-pinger written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thekvs/mail-pinger 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c96fc3e3c4481d11ae689080a982fad3550309b26257e485502b4cb5c5ebb8f9
[INFO] running `Command { std: "docker" "start" "-a" "c96fc3e3c4481d11ae689080a982fad3550309b26257e485502b4cb5c5ebb8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c96fc3e3c4481d11ae689080a982fad3550309b26257e485502b4cb5c5ebb8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96fc3e3c4481d11ae689080a982fad3550309b26257e485502b4cb5c5ebb8f9", kill_on_drop: false }`
[INFO] [stdout] c96fc3e3c4481d11ae689080a982fad3550309b26257e485502b4cb5c5ebb8f9
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58c672152a3470190c63edda7115b63f11a20918f4d1f8d81c1f9cf80a78af7b
[INFO] running `Command { std: "docker" "start" "-a" "58c672152a3470190c63edda7115b63f11a20918f4d1f8d81c1f9cf80a78af7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking chrono v0.4.34
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking imap-proto v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking imap v2.4.1
[INFO] [stderr]     Checking mail-pinger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: imap-proto v0.10.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "58c672152a3470190c63edda7115b63f11a20918f4d1f8d81c1f9cf80a78af7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c672152a3470190c63edda7115b63f11a20918f4d1f8d81c1f9cf80a78af7b", kill_on_drop: false }`
[INFO] [stdout] 58c672152a3470190c63edda7115b63f11a20918f4d1f8d81c1f9cf80a78af7b