[INFO] fetching crate lets_expect 0.5.1...
[INFO] checking lets_expect-0.5.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate lets_expect 0.5.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate lets_expect 0.5.1 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 lets_expect 0.5.1
[INFO] finished tweaking crates.io crate lets_expect 0.5.1
[INFO] tweaked toml for crates.io crate lets_expect 0.5.1 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 42 packages
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lets_expect_macro v0.5.1
[INFO] [stderr]   Downloaded lets_expect_assertions v0.5.1
[INFO] [stderr]   Downloaded lets_expect_core v0.5.1
[INFO] [stderr]   Downloaded topological-sort v0.2.2
[INFO] [stderr]   Downloaded english-numbers v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 01b51a9b0ea997716cf1c85665dff1033929dd311bf1867e3ab55cf6bd46e98f
[INFO] running `Command { std: "docker" "start" "-a" "01b51a9b0ea997716cf1c85665dff1033929dd311bf1867e3ab55cf6bd46e98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01b51a9b0ea997716cf1c85665dff1033929dd311bf1867e3ab55cf6bd46e98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b51a9b0ea997716cf1c85665dff1033929dd311bf1867e3ab55cf6bd46e98f", kill_on_drop: false }`
[INFO] [stdout] 01b51a9b0ea997716cf1c85665dff1033929dd311bf1867e3ab55cf6bd46e98f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ae280bf8366bdd57a569b8c12781fb3eeb3b9c03f80cffcac4515694e22a4288
[INFO] running `Command { std: "docker" "start" "-a" "ae280bf8366bdd57a569b8c12781fb3eeb3b9c03f80cffcac4515694e22a4288", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]    Compiling english-numbers v0.3.3
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]    Compiling lets_expect_core v0.5.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking lets_expect_assertions v0.5.1
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stderr]    Compiling lets_expect_macro v0.5.1
[INFO] [stderr]     Checking lets_expect v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.47s
[INFO] running `Command { std: "docker" "inspect" "ae280bf8366bdd57a569b8c12781fb3eeb3b9c03f80cffcac4515694e22a4288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae280bf8366bdd57a569b8c12781fb3eeb3b9c03f80cffcac4515694e22a4288", kill_on_drop: false }`
[INFO] [stdout] ae280bf8366bdd57a569b8c12781fb3eeb3b9c03f80cffcac4515694e22a4288
[INFO] checking lets_expect-0.5.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate lets_expect 0.5.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate lets_expect 0.5.1 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 lets_expect 0.5.1
[INFO] finished tweaking crates.io crate lets_expect 0.5.1
[INFO] tweaked toml for crates.io crate lets_expect 0.5.1 written to /workspace/builds/worker-5-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ea7ecf8428cf257f69991a71a8e45a1513f144a4237c90c64ff89c2f98bcc184
[INFO] running `Command { std: "docker" "start" "-a" "ea7ecf8428cf257f69991a71a8e45a1513f144a4237c90c64ff89c2f98bcc184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea7ecf8428cf257f69991a71a8e45a1513f144a4237c90c64ff89c2f98bcc184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea7ecf8428cf257f69991a71a8e45a1513f144a4237c90c64ff89c2f98bcc184", kill_on_drop: false }`
[INFO] [stdout] ea7ecf8428cf257f69991a71a8e45a1513f144a4237c90c64ff89c2f98bcc184
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 420a3f11c15547f003e03d0ff62bd5b3ba3fb2e8d7a253f860e12448b6ed84cc
[INFO] running `Command { std: "docker" "start" "-a" "420a3f11c15547f003e03d0ff62bd5b3ba3fb2e8d7a253f860e12448b6ed84cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling english-numbers v0.3.3
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking lets_expect_core v0.5.1
[INFO] [stderr]     Checking lets_expect_assertions v0.5.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stderr]    Compiling lets_expect_macro v0.5.1
[INFO] [stderr]     Checking lets_expect v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.62s
[INFO] running `Command { std: "docker" "inspect" "420a3f11c15547f003e03d0ff62bd5b3ba3fb2e8d7a253f860e12448b6ed84cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420a3f11c15547f003e03d0ff62bd5b3ba3fb2e8d7a253f860e12448b6ed84cc", kill_on_drop: false }`
[INFO] [stdout] 420a3f11c15547f003e03d0ff62bd5b3ba3fb2e8d7a253f860e12448b6ed84cc