[INFO] fetching crate tx-custom-boot 0.3.0...
[INFO] checking tx-custom-boot-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tx-custom-boot 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tx-custom-boot 0.3.0 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 tx-custom-boot 0.3.0
[INFO] finished tweaking crates.io crate tx-custom-boot 0.3.0
[INFO] tweaked toml for crates.io crate tx-custom-boot 0.3.0 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 26 packages
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding paste v0.1.18 (latest: v1.0.14)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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 binwrite v0.2.1
[INFO] [stderr]   Downloaded binwrite_derive v0.2.1
[INFO] [stderr]   Downloaded hex-literal v0.3.4
[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] 4dcc5c1a52421d217365008ff0646180cbb73b3f307474eefd6722544c93a36d
[INFO] running `Command { std: "docker" "start" "-a" "4dcc5c1a52421d217365008ff0646180cbb73b3f307474eefd6722544c93a36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dcc5c1a52421d217365008ff0646180cbb73b3f307474eefd6722544c93a36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcc5c1a52421d217365008ff0646180cbb73b3f307474eefd6722544c93a36d", kill_on_drop: false }`
[INFO] [stdout] 4dcc5c1a52421d217365008ff0646180cbb73b3f307474eefd6722544c93a36d
[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] bbd57063928bf2a262c66d5d09fb6028dd1c58e49ff8abb0fa34acf99b227538
[INFO] running `Command { std: "docker" "start" "-a" "bbd57063928bf2a262c66d5d09fb6028dd1c58e49ff8abb0fa34acf99b227538", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling binwrite_derive v0.2.1
[INFO] [stderr]     Checking binwrite v0.2.1
[INFO] [stderr]     Checking tx-custom-boot v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "bbd57063928bf2a262c66d5d09fb6028dd1c58e49ff8abb0fa34acf99b227538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbd57063928bf2a262c66d5d09fb6028dd1c58e49ff8abb0fa34acf99b227538", kill_on_drop: false }`
[INFO] [stdout] bbd57063928bf2a262c66d5d09fb6028dd1c58e49ff8abb0fa34acf99b227538
[INFO] checking tx-custom-boot-0.3.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tx-custom-boot 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tx-custom-boot 0.3.0 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 crates.io crate tx-custom-boot 0.3.0
[INFO] finished tweaking crates.io crate tx-custom-boot 0.3.0
[INFO] tweaked toml for crates.io crate tx-custom-boot 0.3.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1b995adfb12fc1f1adde015f3d11cb0903a5ec74fb6eee687b14e80cf6b16d7
[INFO] running `Command { std: "docker" "start" "-a" "c1b995adfb12fc1f1adde015f3d11cb0903a5ec74fb6eee687b14e80cf6b16d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1b995adfb12fc1f1adde015f3d11cb0903a5ec74fb6eee687b14e80cf6b16d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b995adfb12fc1f1adde015f3d11cb0903a5ec74fb6eee687b14e80cf6b16d7", kill_on_drop: false }`
[INFO] [stdout] c1b995adfb12fc1f1adde015f3d11cb0903a5ec74fb6eee687b14e80cf6b16d7
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51628d845ea41617d960f0f34104577af83a31570eac2d129753c7dd525c4c03
[INFO] running `Command { std: "docker" "start" "-a" "51628d845ea41617d960f0f34104577af83a31570eac2d129753c7dd525c4c03", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling binwrite_derive v0.2.1
[INFO] [stderr]     Checking binwrite v0.2.1
[INFO] [stderr]     Checking tx-custom-boot v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "51628d845ea41617d960f0f34104577af83a31570eac2d129753c7dd525c4c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51628d845ea41617d960f0f34104577af83a31570eac2d129753c7dd525c4c03", kill_on_drop: false }`
[INFO] [stdout] 51628d845ea41617d960f0f34104577af83a31570eac2d129753c7dd525c4c03