[INFO] cloning repository https://github.com/TomerCohen95/rust_cancellation_tokens
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TomerCohen95/rust_cancellation_tokens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomerCohen95%2Frust_cancellation_tokens", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomerCohen95%2Frust_cancellation_tokens'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffd65307ff1518c45dae7a1124e22ef61a62b8c0
[INFO] checking TomerCohen95/rust_cancellation_tokens against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomerCohen95%2Frust_cancellation_tokens" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomerCohen95/rust_cancellation_tokens 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/TomerCohen95/rust_cancellation_tokens
[INFO] finished tweaking git repo https://github.com/TomerCohen95/rust_cancellation_tokens
[INFO] tweaked toml for git repo https://github.com/TomerCohen95/rust_cancellation_tokens written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TomerCohen95/rust_cancellation_tokens 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3cdf561b1d96cf949ff9206ab92ce12f5b9fb4713d9802d3a1290cdfb4d6481d
[INFO] running `Command { std: "docker" "start" "-a" "3cdf561b1d96cf949ff9206ab92ce12f5b9fb4713d9802d3a1290cdfb4d6481d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cdf561b1d96cf949ff9206ab92ce12f5b9fb4713d9802d3a1290cdfb4d6481d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cdf561b1d96cf949ff9206ab92ce12f5b9fb4713d9802d3a1290cdfb4d6481d", kill_on_drop: false }`
[INFO] [stdout] 3cdf561b1d96cf949ff9206ab92ce12f5b9fb4713d9802d3a1290cdfb4d6481d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 94cb169a2b150d7b752ddc008eb9db7443378c6780699b1038969eb0a099aeca
[INFO] running `Command { std: "docker" "start" "-a" "94cb169a2b150d7b752ddc008eb9db7443378c6780699b1038969eb0a099aeca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking syncing_thread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.84s
[INFO] running `Command { std: "docker" "inspect" "94cb169a2b150d7b752ddc008eb9db7443378c6780699b1038969eb0a099aeca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94cb169a2b150d7b752ddc008eb9db7443378c6780699b1038969eb0a099aeca", kill_on_drop: false }`
[INFO] [stdout] 94cb169a2b150d7b752ddc008eb9db7443378c6780699b1038969eb0a099aeca