[INFO] fetching crate fsr2 0.0.0...
[INFO] checking fsr2-0.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate fsr2 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate fsr2 0.0.0 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 fsr2 0.0.0
[INFO] finished tweaking crates.io crate fsr2 0.0.0
[INFO] tweaked toml for crates.io crate fsr2 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate fsr2 0.0.0 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 os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded which v4.3.0
[INFO] [stderr]   Downloaded once_cell v1.14.0
[INFO] [stderr]   Downloaded clang-sys v1.3.3
[INFO] [stderr]   Downloaded termcolor v1.1.3
[INFO] [stderr]   Downloaded indexmap v1.9.1
[INFO] [stderr]   Downloaded log v0.4.17
[INFO] [stderr]   Downloaded nom v7.1.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded clap v3.2.20
[INFO] [stderr]   Downloaded libc v0.2.132
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded bindgen v0.60.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded quote v1.0.21
[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] 340eaa93fd33ec1fe7f14ccd83a7b0d28aa91437032a05d56f6f08bc6595bad8
[INFO] running `Command { std: "docker" "start" "-a" "340eaa93fd33ec1fe7f14ccd83a7b0d28aa91437032a05d56f6f08bc6595bad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "340eaa93fd33ec1fe7f14ccd83a7b0d28aa91437032a05d56f6f08bc6595bad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340eaa93fd33ec1fe7f14ccd83a7b0d28aa91437032a05d56f6f08bc6595bad8", kill_on_drop: false }`
[INFO] [stdout] 340eaa93fd33ec1fe7f14ccd83a7b0d28aa91437032a05d56f6f08bc6595bad8
[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] 3757896196e1ccf7af5c0bee2db9f3d05de0fd808faacaf1ed0c179f251c0a3f
[INFO] running `Command { std: "docker" "start" "-a" "3757896196e1ccf7af5c0bee2db9f3d05de0fd808faacaf1ed0c179f251c0a3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling which v4.3.0
[INFO] [stderr]    Compiling clap v3.2.20
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling fsr2 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "3757896196e1ccf7af5c0bee2db9f3d05de0fd808faacaf1ed0c179f251c0a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3757896196e1ccf7af5c0bee2db9f3d05de0fd808faacaf1ed0c179f251c0a3f", kill_on_drop: false }`
[INFO] [stdout] 3757896196e1ccf7af5c0bee2db9f3d05de0fd808faacaf1ed0c179f251c0a3f
[INFO] checking fsr2-0.0.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate fsr2 0.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate fsr2 0.0.0 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 fsr2 0.0.0
[INFO] finished tweaking crates.io crate fsr2 0.0.0
[INFO] tweaked toml for crates.io crate fsr2 0.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate fsr2 0.0.0 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-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] 2b4c5cdb25809c54a98e0fd5e5610881726018e26821a0996e57caf1d8e3d1e1
[INFO] running `Command { std: "docker" "start" "-a" "2b4c5cdb25809c54a98e0fd5e5610881726018e26821a0996e57caf1d8e3d1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b4c5cdb25809c54a98e0fd5e5610881726018e26821a0996e57caf1d8e3d1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4c5cdb25809c54a98e0fd5e5610881726018e26821a0996e57caf1d8e3d1e1", kill_on_drop: false }`
[INFO] [stdout] 2b4c5cdb25809c54a98e0fd5e5610881726018e26821a0996e57caf1d8e3d1e1
[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] d5692e2b6b8bd66abb3e59a92b82e3584722dd27b618130586c782793f06105e
[INFO] running `Command { std: "docker" "start" "-a" "d5692e2b6b8bd66abb3e59a92b82e3584722dd27b618130586c782793f06105e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling clap v3.2.20
[INFO] [stderr]    Compiling which v4.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling fsr2 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.51s
[INFO] running `Command { std: "docker" "inspect" "d5692e2b6b8bd66abb3e59a92b82e3584722dd27b618130586c782793f06105e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5692e2b6b8bd66abb3e59a92b82e3584722dd27b618130586c782793f06105e", kill_on_drop: false }`
[INFO] [stdout] d5692e2b6b8bd66abb3e59a92b82e3584722dd27b618130586c782793f06105e