[INFO] fetching crate relabuf 0.16.0...
[INFO] checking relabuf-0.16.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate relabuf 0.16.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate relabuf 0.16.0 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 relabuf 0.16.0
[INFO] finished tweaking crates.io crate relabuf 0.16.0
[INFO] tweaked toml for crates.io crate relabuf 0.16.0 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 88 packages
[INFO] [stderr]       Adding async-io v1.13.0 (latest: v2.3.2)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding backoff v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding flume v0.10.14 (latest: v0.11.0)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (latest: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding polling v2.8.0 (latest: v3.6.0)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.32)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 smol-timeout v0.6.0
[INFO] [stderr]   Downloaded backoff v0.3.0
[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] a9e3768b1ade3266f2b879024e9ad7497b2977f3b6ff7a7897924c470cee9de2
[INFO] running `Command { std: "docker" "start" "-a" "a9e3768b1ade3266f2b879024e9ad7497b2977f3b6ff7a7897924c470cee9de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9e3768b1ade3266f2b879024e9ad7497b2977f3b6ff7a7897924c470cee9de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e3768b1ade3266f2b879024e9ad7497b2977f3b6ff7a7897924c470cee9de2", kill_on_drop: false }`
[INFO] [stdout] a9e3768b1ade3266f2b879024e9ad7497b2977f3b6ff7a7897924c470cee9de2
[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] 6f99d5eb47d9f9e83ac9b803b55fba7729d9db657bb25585c9976fa16bfc4453
[INFO] running `Command { std: "docker" "start" "-a" "6f99d5eb47d9f9e83ac9b803b55fba7729d9db657bb25585c9976fa16bfc4453", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking backoff v0.3.0
[INFO] [stderr]     Checking smol-timeout v0.6.0
[INFO] [stderr]     Checking relabuf v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.89s
[INFO] running `Command { std: "docker" "inspect" "6f99d5eb47d9f9e83ac9b803b55fba7729d9db657bb25585c9976fa16bfc4453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f99d5eb47d9f9e83ac9b803b55fba7729d9db657bb25585c9976fa16bfc4453", kill_on_drop: false }`
[INFO] [stdout] 6f99d5eb47d9f9e83ac9b803b55fba7729d9db657bb25585c9976fa16bfc4453
[INFO] checking relabuf-0.16.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate relabuf 0.16.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate relabuf 0.16.0 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 relabuf 0.16.0
[INFO] finished tweaking crates.io crate relabuf 0.16.0
[INFO] tweaked toml for crates.io crate relabuf 0.16.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] b2b251bbcd60b835d3dd57f8e9319b273c54692b8643f0af43d1378e83da9d45
[INFO] running `Command { std: "docker" "start" "-a" "b2b251bbcd60b835d3dd57f8e9319b273c54692b8643f0af43d1378e83da9d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b251bbcd60b835d3dd57f8e9319b273c54692b8643f0af43d1378e83da9d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b251bbcd60b835d3dd57f8e9319b273c54692b8643f0af43d1378e83da9d45", kill_on_drop: false }`
[INFO] [stdout] b2b251bbcd60b835d3dd57f8e9319b273c54692b8643f0af43d1378e83da9d45
[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] d9defbd7df39d71a0ee2141a840f87e3037240745a4831718513d2c0dff6b1d4
[INFO] running `Command { std: "docker" "start" "-a" "d9defbd7df39d71a0ee2141a840f87e3037240745a4831718513d2c0dff6b1d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking backoff v0.3.0
[INFO] [stderr]     Checking smol-timeout v0.6.0
[INFO] [stderr]     Checking relabuf v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "d9defbd7df39d71a0ee2141a840f87e3037240745a4831718513d2c0dff6b1d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9defbd7df39d71a0ee2141a840f87e3037240745a4831718513d2c0dff6b1d4", kill_on_drop: false }`
[INFO] [stdout] d9defbd7df39d71a0ee2141a840f87e3037240745a4831718513d2c0dff6b1d4