[INFO] fetching crate prost-msg-build 0.2.0...
[INFO] checking prost-msg-build-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate prost-msg-build 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate prost-msg-build 0.2.0 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 prost-msg-build 0.2.0
[INFO] finished tweaking crates.io crate prost-msg-build 0.2.0
[INFO] tweaked toml for crates.io crate prost-msg-build 0.2.0 written to /workspace/builds/worker-2-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 52 packages
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding multimap v0.8.3 (latest: v0.10.0)
[INFO] [stderr]       Adding prettyplease v0.1.25 (latest: v0.2.17)
[INFO] [stderr]       Adding prost v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-derive v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-types v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding pulldown-cmark v0.9.6 (latest: v0.10.2)
[INFO] [stderr]       Adding pulldown-cmark-to-cmark v10.0.4 (latest: v13.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding which v4.4.2 (latest: v6.0.1)
[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 pulldown-cmark-to-cmark v10.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d53fe63ddc278a8c6ffc87cefb6e4a2331b8432303ee14e17bff9b5487365115
[INFO] running `Command { std: "docker" "start" "-a" "d53fe63ddc278a8c6ffc87cefb6e4a2331b8432303ee14e17bff9b5487365115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d53fe63ddc278a8c6ffc87cefb6e4a2331b8432303ee14e17bff9b5487365115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d53fe63ddc278a8c6ffc87cefb6e4a2331b8432303ee14e17bff9b5487365115", kill_on_drop: false }`
[INFO] [stdout] d53fe63ddc278a8c6ffc87cefb6e4a2331b8432303ee14e17bff9b5487365115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 87b4866fa59366c4a710f1f04c0cadfbe7d41a797660f20c6ef08c6cf7372c44
[INFO] running `Command { std: "docker" "start" "-a" "87b4866fa59366c4a710f1f04c0cadfbe7d41a797660f20c6ef08c6cf7372c44", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]    Compiling prettyplease v0.1.25
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking prost-types v0.11.9
[INFO] [stderr]     Checking prost-msg-build v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1464:9
[INFO] [stdout]      |
[INFO] [stdout] 1464 |     use std::path::Path;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1467 |     use super::*;
[INFO] [stdout]      |         -------- the item `Path` is already imported here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.70s
[INFO] running `Command { std: "docker" "inspect" "87b4866fa59366c4a710f1f04c0cadfbe7d41a797660f20c6ef08c6cf7372c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b4866fa59366c4a710f1f04c0cadfbe7d41a797660f20c6ef08c6cf7372c44", kill_on_drop: false }`
[INFO] [stdout] 87b4866fa59366c4a710f1f04c0cadfbe7d41a797660f20c6ef08c6cf7372c44
[INFO] checking prost-msg-build-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate prost-msg-build 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate prost-msg-build 0.2.0 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 prost-msg-build 0.2.0
[INFO] finished tweaking crates.io crate prost-msg-build 0.2.0
[INFO] tweaked toml for crates.io crate prost-msg-build 0.2.0 written to /workspace/builds/worker-2-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] cc365d2c408bc0b00ce29382ec13a3bd89f24b8f57bd9f82cbd069158fb8d009
[INFO] running `Command { std: "docker" "start" "-a" "cc365d2c408bc0b00ce29382ec13a3bd89f24b8f57bd9f82cbd069158fb8d009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc365d2c408bc0b00ce29382ec13a3bd89f24b8f57bd9f82cbd069158fb8d009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc365d2c408bc0b00ce29382ec13a3bd89f24b8f57bd9f82cbd069158fb8d009", kill_on_drop: false }`
[INFO] [stdout] cc365d2c408bc0b00ce29382ec13a3bd89f24b8f57bd9f82cbd069158fb8d009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b4cbbd01663ef629d735054e2c8170c25f12132912b7618f02af7e6f1c50ea82
[INFO] running `Command { std: "docker" "start" "-a" "b4cbbd01663ef629d735054e2c8170c25f12132912b7618f02af7e6f1c50ea82", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling prettyplease v0.1.25
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking fastrand v2.0.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking prost-types v0.11.9
[INFO] [stderr]     Checking prost-msg-build v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Path` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1464:9
[INFO] [stdout]      |
[INFO] [stdout] 1464 |     use std::path::Path;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1467 |     use super::*;
[INFO] [stdout]      |         -------- the item `Path` is already imported here
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.68s
[INFO] running `Command { std: "docker" "inspect" "b4cbbd01663ef629d735054e2c8170c25f12132912b7618f02af7e6f1c50ea82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4cbbd01663ef629d735054e2c8170c25f12132912b7618f02af7e6f1c50ea82", kill_on_drop: false }`
[INFO] [stdout] b4cbbd01663ef629d735054e2c8170c25f12132912b7618f02af7e6f1c50ea82