[INFO] fetching crate sentinel-tower 0.1.0...
[INFO] checking sentinel-tower-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate sentinel-tower 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate sentinel-tower 0.1.0 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 sentinel-tower 0.1.0
[INFO] finished tweaking crates.io crate sentinel-tower 0.1.0
[INFO] tweaked toml for crates.io crate sentinel-tower 0.1.0 written to /workspace/builds/worker-3-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 58 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding lru v0.7.8 (latest: v0.12.3)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding sysinfo v0.26.9 (latest: v0.30.8)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 lru v0.7.8
[INFO] [stderr]   Downloaded sysinfo v0.26.9
[INFO] [stderr]   Downloaded sentinel-core v0.1.3
[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] 02ede09c076966423259d642fd7856ba3bebaeb894040904cd36c682632dd06a
[INFO] running `Command { std: "docker" "start" "-a" "02ede09c076966423259d642fd7856ba3bebaeb894040904cd36c682632dd06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02ede09c076966423259d642fd7856ba3bebaeb894040904cd36c682632dd06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ede09c076966423259d642fd7856ba3bebaeb894040904cd36c682632dd06a", kill_on_drop: false }`
[INFO] [stdout] 02ede09c076966423259d642fd7856ba3bebaeb894040904cd36c682632dd06a
[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] 39bb77cf58ab163eb806e065e7e08cefd5952abaa63ab3d277c23e59988e88df
[INFO] running `Command { std: "docker" "start" "-a" "39bb77cf58ab163eb806e065e7e08cefd5952abaa63ab3d277c23e59988e88df", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking sysinfo v0.26.9
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking lru v0.7.8
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling enum-map-derive v0.17.0
[INFO] [stderr]     Checking enum-map v2.7.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking sentinel-core v0.1.3
[INFO] [stderr]     Checking sentinel-tower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.13s
[INFO] running `Command { std: "docker" "inspect" "39bb77cf58ab163eb806e065e7e08cefd5952abaa63ab3d277c23e59988e88df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39bb77cf58ab163eb806e065e7e08cefd5952abaa63ab3d277c23e59988e88df", kill_on_drop: false }`
[INFO] [stdout] 39bb77cf58ab163eb806e065e7e08cefd5952abaa63ab3d277c23e59988e88df
[INFO] checking sentinel-tower-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate sentinel-tower 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate sentinel-tower 0.1.0 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 sentinel-tower 0.1.0
[INFO] finished tweaking crates.io crate sentinel-tower 0.1.0
[INFO] tweaked toml for crates.io crate sentinel-tower 0.1.0 written to /workspace/builds/worker-3-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-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] bc7818aa33c322d512156835a852f35d59f384b2d04e224aa2faa049388d33b7
[INFO] running `Command { std: "docker" "start" "-a" "bc7818aa33c322d512156835a852f35d59f384b2d04e224aa2faa049388d33b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc7818aa33c322d512156835a852f35d59f384b2d04e224aa2faa049388d33b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7818aa33c322d512156835a852f35d59f384b2d04e224aa2faa049388d33b7", kill_on_drop: false }`
[INFO] [stdout] bc7818aa33c322d512156835a852f35d59f384b2d04e224aa2faa049388d33b7
[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] 17c179da445ee2748e859403e57cb50e8bf1016426ca14a4a2e675d1f2bc8388
[INFO] running `Command { std: "docker" "start" "-a" "17c179da445ee2748e859403e57cb50e8bf1016426ca14a4a2e675d1f2bc8388", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking sysinfo v0.26.9
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking lru v0.7.8
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling enum-map-derive v0.17.0
[INFO] [stderr]     Checking enum-map v2.7.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking sentinel-core v0.1.3
[INFO] [stderr]     Checking sentinel-tower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.57s
[INFO] running `Command { std: "docker" "inspect" "17c179da445ee2748e859403e57cb50e8bf1016426ca14a4a2e675d1f2bc8388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c179da445ee2748e859403e57cb50e8bf1016426ca14a4a2e675d1f2bc8388", kill_on_drop: false }`
[INFO] [stdout] 17c179da445ee2748e859403e57cb50e8bf1016426ca14a4a2e675d1f2bc8388