[INFO] cloning repository https://github.com/carbon-design-system/dsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carbon-design-system/dsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbon-design-system%2Fdsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbon-design-system%2Fdsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c4da7d8d15cff55290ebc7555a60689c097e790
[INFO] checking carbon-design-system/dsm against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbon-design-system%2Fdsm" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carbon-design-system/dsm 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/carbon-design-system/dsm
[INFO] finished tweaking git repo https://github.com/carbon-design-system/dsm
[INFO] tweaked toml for git repo https://github.com/carbon-design-system/dsm written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/carbon-design-system/dsm 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]  Downloading crates ...
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.3.1
[INFO] [stderr]   Downloaded predicates v2.0.0
[INFO] [stderr]   Downloaded semver v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7eb9de8ad749349ae29842a804941fa7c714770c3e809e141e6923b6df362722
[INFO] running `Command { std: "docker" "start" "-a" "7eb9de8ad749349ae29842a804941fa7c714770c3e809e141e6923b6df362722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eb9de8ad749349ae29842a804941fa7c714770c3e809e141e6923b6df362722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb9de8ad749349ae29842a804941fa7c714770c3e809e141e6923b6df362722", kill_on_drop: false }`
[INFO] [stdout] 7eb9de8ad749349ae29842a804941fa7c714770c3e809e141e6923b6df362722
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f5e9bb8c51a0495c664cf1b7001274a28feddf1cd55818e97c01e0f7da04ba8b
[INFO] running `Command { std: "docker" "start" "-a" "f5e9bb8c51a0495c664cf1b7001274a28feddf1cd55818e97c01e0f7da04ba8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking predicates v2.0.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.1
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]     Checking carb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.95s
[INFO] running `Command { std: "docker" "inspect" "f5e9bb8c51a0495c664cf1b7001274a28feddf1cd55818e97c01e0f7da04ba8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e9bb8c51a0495c664cf1b7001274a28feddf1cd55818e97c01e0f7da04ba8b", kill_on_drop: false }`
[INFO] [stdout] f5e9bb8c51a0495c664cf1b7001274a28feddf1cd55818e97c01e0f7da04ba8b
[INFO] checking carbon-design-system/dsm against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarbon-design-system%2Fdsm" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carbon-design-system/dsm 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/carbon-design-system/dsm
[INFO] finished tweaking git repo https://github.com/carbon-design-system/dsm
[INFO] tweaked toml for git repo https://github.com/carbon-design-system/dsm written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/carbon-design-system/dsm 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 97327276aa4c44b74e430cbb695751e66b1d7731d7f02cbf92dc8de89a707db0
[INFO] running `Command { std: "docker" "start" "-a" "97327276aa4c44b74e430cbb695751e66b1d7731d7f02cbf92dc8de89a707db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97327276aa4c44b74e430cbb695751e66b1d7731d7f02cbf92dc8de89a707db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97327276aa4c44b74e430cbb695751e66b1d7731d7f02cbf92dc8de89a707db0", kill_on_drop: false }`
[INFO] [stdout] 97327276aa4c44b74e430cbb695751e66b1d7731d7f02cbf92dc8de89a707db0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2ae3f724bc91c0b938fbb58ac6e39f74fca24a8f21ba2421cd2003fd37b6049d
[INFO] running `Command { std: "docker" "start" "-a" "2ae3f724bc91c0b938fbb58ac6e39f74fca24a8f21ba2421cd2003fd37b6049d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking predicates v2.0.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]     Checking carb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.07s
[INFO] running `Command { std: "docker" "inspect" "2ae3f724bc91c0b938fbb58ac6e39f74fca24a8f21ba2421cd2003fd37b6049d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae3f724bc91c0b938fbb58ac6e39f74fca24a8f21ba2421cd2003fd37b6049d", kill_on_drop: false }`
[INFO] [stdout] 2ae3f724bc91c0b938fbb58ac6e39f74fca24a8f21ba2421cd2003fd37b6049d