[INFO] fetching crate tokio-rev-lines 0.2.1...
[INFO] checking tokio-rev-lines-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tokio-rev-lines 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tokio-rev-lines 0.2.1 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 tokio-rev-lines 0.2.1
[INFO] finished tweaking crates.io crate tokio-rev-lines 0.2.1
[INFO] tweaked toml for crates.io crate tokio-rev-lines 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate tokio-rev-lines 0.2.1 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]     Blocking waiting for file lock on package cache
[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] f48f25b56762689e3b2a78623d1b719944a3fa0a497ecc949e2ada614ed57b3d
[INFO] running `Command { std: "docker" "start" "-a" "f48f25b56762689e3b2a78623d1b719944a3fa0a497ecc949e2ada614ed57b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48f25b56762689e3b2a78623d1b719944a3fa0a497ecc949e2ada614ed57b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48f25b56762689e3b2a78623d1b719944a3fa0a497ecc949e2ada614ed57b3d", kill_on_drop: false }`
[INFO] [stdout] f48f25b56762689e3b2a78623d1b719944a3fa0a497ecc949e2ada614ed57b3d
[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] a8a9c9ecabc71ff4a554d92e39f79acdd294c9197933ae8f13cc6e8918fc8330
[INFO] running `Command { std: "docker" "start" "-a" "a8a9c9ecabc71ff4a554d92e39f79acdd294c9197933ae8f13cc6e8918fc8330", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tokio-rev-lines v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "a8a9c9ecabc71ff4a554d92e39f79acdd294c9197933ae8f13cc6e8918fc8330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a9c9ecabc71ff4a554d92e39f79acdd294c9197933ae8f13cc6e8918fc8330", kill_on_drop: false }`
[INFO] [stdout] a8a9c9ecabc71ff4a554d92e39f79acdd294c9197933ae8f13cc6e8918fc8330
[INFO] checking tokio-rev-lines-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tokio-rev-lines 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tokio-rev-lines 0.2.1 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 tokio-rev-lines 0.2.1
[INFO] finished tweaking crates.io crate tokio-rev-lines 0.2.1
[INFO] tweaked toml for crates.io crate tokio-rev-lines 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate tokio-rev-lines 0.2.1 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-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] 88360082be843c534b1543b228c41853c02134ae56fc18465df99ff5d619a55d
[INFO] running `Command { std: "docker" "start" "-a" "88360082be843c534b1543b228c41853c02134ae56fc18465df99ff5d619a55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88360082be843c534b1543b228c41853c02134ae56fc18465df99ff5d619a55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88360082be843c534b1543b228c41853c02134ae56fc18465df99ff5d619a55d", kill_on_drop: false }`
[INFO] [stdout] 88360082be843c534b1543b228c41853c02134ae56fc18465df99ff5d619a55d
[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] c12a1f14a47e29604b26742fcd6e2c88b230ad4a0f7c888b7cd7c3b70d6fe3b9
[INFO] running `Command { std: "docker" "start" "-a" "c12a1f14a47e29604b26742fcd6e2c88b230ad4a0f7c888b7cd7c3b70d6fe3b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tokio-rev-lines v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.81s
[INFO] running `Command { std: "docker" "inspect" "c12a1f14a47e29604b26742fcd6e2c88b230ad4a0f7c888b7cd7c3b70d6fe3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c12a1f14a47e29604b26742fcd6e2c88b230ad4a0f7c888b7cd7c3b70d6fe3b9", kill_on_drop: false }`
[INFO] [stdout] c12a1f14a47e29604b26742fcd6e2c88b230ad4a0f7c888b7cd7c3b70d6fe3b9