[INFO] cloning repository https://github.com/jgallagher/wtaf2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jgallagher/wtaf2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fwtaf2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fwtaf2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de6b63146dbd66d2d8f322e9f7fa94f53b80b50a
[INFO] checking jgallagher/wtaf2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fwtaf2" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgallagher/wtaf2 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/jgallagher/wtaf2
[INFO] finished tweaking git repo https://github.com/jgallagher/wtaf2
[INFO] tweaked toml for git repo https://github.com/jgallagher/wtaf2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jgallagher/wtaf2 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buf-list v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bf0fd9bfc74a1d7d5ede71f02033eedd4190db91983d841e1930b7ed864001b9
[INFO] running `Command { std: "docker" "start" "-a" "bf0fd9bfc74a1d7d5ede71f02033eedd4190db91983d841e1930b7ed864001b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf0fd9bfc74a1d7d5ede71f02033eedd4190db91983d841e1930b7ed864001b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0fd9bfc74a1d7d5ede71f02033eedd4190db91983d841e1930b7ed864001b9", kill_on_drop: false }`
[INFO] [stdout] bf0fd9bfc74a1d7d5ede71f02033eedd4190db91983d841e1930b7ed864001b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6c47106cae5fd0a17400326fef96465891e0e82ca326e9fa1fe92f3442cec73f
[INFO] running `Command { std: "docker" "start" "-a" "6c47106cae5fd0a17400326fef96465891e0e82ca326e9fa1fe92f3442cec73f", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf-list v1.0.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking manual-http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "6c47106cae5fd0a17400326fef96465891e0e82ca326e9fa1fe92f3442cec73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c47106cae5fd0a17400326fef96465891e0e82ca326e9fa1fe92f3442cec73f", kill_on_drop: false }`
[INFO] [stdout] 6c47106cae5fd0a17400326fef96465891e0e82ca326e9fa1fe92f3442cec73f
[INFO] checking jgallagher/wtaf2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgallagher%2Fwtaf2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgallagher/wtaf2 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/jgallagher/wtaf2
[INFO] finished tweaking git repo https://github.com/jgallagher/wtaf2
[INFO] tweaked toml for git repo https://github.com/jgallagher/wtaf2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jgallagher/wtaf2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 06b55af56f43526b5c1425743c79bc315028471c1f47a0b2daa3ada00b4c3b99
[INFO] running `Command { std: "docker" "start" "-a" "06b55af56f43526b5c1425743c79bc315028471c1f47a0b2daa3ada00b4c3b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06b55af56f43526b5c1425743c79bc315028471c1f47a0b2daa3ada00b4c3b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b55af56f43526b5c1425743c79bc315028471c1f47a0b2daa3ada00b4c3b99", kill_on_drop: false }`
[INFO] [stdout] 06b55af56f43526b5c1425743c79bc315028471c1f47a0b2daa3ada00b4c3b99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d250f18794c938a6f2ab04214a2f642f8e95a04d4c0f73bf4f5a03990bdef19f
[INFO] running `Command { std: "docker" "start" "-a" "d250f18794c938a6f2ab04214a2f642f8e95a04d4c0f73bf4f5a03990bdef19f", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf-list v1.0.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking manual-http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "d250f18794c938a6f2ab04214a2f642f8e95a04d4c0f73bf4f5a03990bdef19f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d250f18794c938a6f2ab04214a2f642f8e95a04d4c0f73bf4f5a03990bdef19f", kill_on_drop: false }`
[INFO] [stdout] d250f18794c938a6f2ab04214a2f642f8e95a04d4c0f73bf4f5a03990bdef19f