[INFO] fetching crate flow_macro 0.42.0...
[INFO] checking flow_macro-0.42.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate flow_macro 0.42.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate flow_macro 0.42.0 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 flow_macro 0.42.0
[INFO] finished tweaking crates.io crate flow_macro 0.42.0
[INFO] tweaked toml for crates.io crate flow_macro 0.42.0 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding flowcore v0.42.0 (latest: v0.142.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding idna v0.2.3 (latest: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding simpath v2.3.0 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding url v2.2.2 (latest: v2.5.0)
[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 simpath v2.3.0
[INFO] [stderr]   Downloaded shrinkwraprs v0.3.0
[INFO] [stderr]   Downloaded flowcore v0.42.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.26
[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] 7bf3ecf83f46e4346a06c2610e84aab1c7eaa21e7def769c8f36a53208e62a31
[INFO] running `Command { std: "docker" "start" "-a" "7bf3ecf83f46e4346a06c2610e84aab1c7eaa21e7def769c8f36a53208e62a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bf3ecf83f46e4346a06c2610e84aab1c7eaa21e7def769c8f36a53208e62a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf3ecf83f46e4346a06c2610e84aab1c7eaa21e7def769c8f36a53208e62a31", kill_on_drop: false }`
[INFO] [stdout] 7bf3ecf83f46e4346a06c2610e84aab1c7eaa21e7def769c8f36a53208e62a31
[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] b7b0dc3ba2b7edbaebc46d510e62481631a613e7c85bd626da6fdc578fcb385e
[INFO] running `Command { std: "docker" "start" "-a" "b7b0dc3ba2b7edbaebc46d510e62481631a613e7c85bd626da6fdc578fcb385e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking simpath v2.3.0
[INFO] [stderr]     Checking flowcore v0.42.0
[INFO] [stderr]     Checking flow_macro v0.42.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.74s
[INFO] running `Command { std: "docker" "inspect" "b7b0dc3ba2b7edbaebc46d510e62481631a613e7c85bd626da6fdc578fcb385e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b0dc3ba2b7edbaebc46d510e62481631a613e7c85bd626da6fdc578fcb385e", kill_on_drop: false }`
[INFO] [stdout] b7b0dc3ba2b7edbaebc46d510e62481631a613e7c85bd626da6fdc578fcb385e
[INFO] checking flow_macro-0.42.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate flow_macro 0.42.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate flow_macro 0.42.0 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 flow_macro 0.42.0
[INFO] finished tweaking crates.io crate flow_macro 0.42.0
[INFO] tweaked toml for crates.io crate flow_macro 0.42.0 written to /workspace/builds/worker-5-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-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] 0426771b3a00e48b4251d7fb0b862efa4d5a0f31481beca55428fb0459cccbfe
[INFO] running `Command { std: "docker" "start" "-a" "0426771b3a00e48b4251d7fb0b862efa4d5a0f31481beca55428fb0459cccbfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0426771b3a00e48b4251d7fb0b862efa4d5a0f31481beca55428fb0459cccbfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0426771b3a00e48b4251d7fb0b862efa4d5a0f31481beca55428fb0459cccbfe", kill_on_drop: false }`
[INFO] [stdout] 0426771b3a00e48b4251d7fb0b862efa4d5a0f31481beca55428fb0459cccbfe
[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] df784d7b2648198a4d719b8ccdce853ea6d1d3fbab65c95968c6a3ff59882ced
[INFO] running `Command { std: "docker" "start" "-a" "df784d7b2648198a4d719b8ccdce853ea6d1d3fbab65c95968c6a3ff59882ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling libz-sys v1.1.16
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling curl-sys v0.4.72+curl-8.6.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling curl v0.4.46
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking simpath v2.3.0
[INFO] [stderr]     Checking flowcore v0.42.0
[INFO] [stderr]     Checking flow_macro v0.42.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.50s
[INFO] running `Command { std: "docker" "inspect" "df784d7b2648198a4d719b8ccdce853ea6d1d3fbab65c95968c6a3ff59882ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df784d7b2648198a4d719b8ccdce853ea6d1d3fbab65c95968c6a3ff59882ced", kill_on_drop: false }`
[INFO] [stdout] df784d7b2648198a4d719b8ccdce853ea6d1d3fbab65c95968c6a3ff59882ced