[INFO] cloning repository https://github.com/YannisDoublet/Tokio_rust_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YannisDoublet/Tokio_rust_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannisDoublet%2FTokio_rust_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannisDoublet%2FTokio_rust_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf9947abce54b00af85785663fb0e127f82e0840
[INFO] checking YannisDoublet/Tokio_rust_tutorial against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannisDoublet%2FTokio_rust_tutorial" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YannisDoublet/Tokio_rust_tutorial 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/YannisDoublet/Tokio_rust_tutorial
[INFO] finished tweaking git repo https://github.com/YannisDoublet/Tokio_rust_tutorial
[INFO] tweaked toml for git repo https://github.com/YannisDoublet/Tokio_rust_tutorial written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/YannisDoublet/Tokio_rust_tutorial 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mini-redis v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 55dfa649f4b2e0fa3849235eab4d04b9c60dc3ac48519c6e345e1f29cd5dad3d
[INFO] running `Command { std: "docker" "start" "-a" "55dfa649f4b2e0fa3849235eab4d04b9c60dc3ac48519c6e345e1f29cd5dad3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55dfa649f4b2e0fa3849235eab4d04b9c60dc3ac48519c6e345e1f29cd5dad3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55dfa649f4b2e0fa3849235eab4d04b9c60dc3ac48519c6e345e1f29cd5dad3d", kill_on_drop: false }`
[INFO] [stdout] 55dfa649f4b2e0fa3849235eab4d04b9c60dc3ac48519c6e345e1f29cd5dad3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b089311a2f2c2029decd930d24aee71aa28ec22a6c0dfd78447209000afbcfbd
[INFO] running `Command { std: "docker" "start" "-a" "b089311a2f2c2029decd930d24aee71aa28ec22a6c0dfd78447209000afbcfbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling tokio v1.21.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking my-redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.81s
[INFO] running `Command { std: "docker" "inspect" "b089311a2f2c2029decd930d24aee71aa28ec22a6c0dfd78447209000afbcfbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b089311a2f2c2029decd930d24aee71aa28ec22a6c0dfd78447209000afbcfbd", kill_on_drop: false }`
[INFO] [stdout] b089311a2f2c2029decd930d24aee71aa28ec22a6c0dfd78447209000afbcfbd
[INFO] checking YannisDoublet/Tokio_rust_tutorial against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYannisDoublet%2FTokio_rust_tutorial" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YannisDoublet/Tokio_rust_tutorial 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 git repo https://github.com/YannisDoublet/Tokio_rust_tutorial
[INFO] finished tweaking git repo https://github.com/YannisDoublet/Tokio_rust_tutorial
[INFO] tweaked toml for git repo https://github.com/YannisDoublet/Tokio_rust_tutorial written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/YannisDoublet/Tokio_rust_tutorial 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9333704d33ad90aa0cc8914b0540e1f68172a225c3c155fef5ca2d788683c0d2
[INFO] running `Command { std: "docker" "start" "-a" "9333704d33ad90aa0cc8914b0540e1f68172a225c3c155fef5ca2d788683c0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9333704d33ad90aa0cc8914b0540e1f68172a225c3c155fef5ca2d788683c0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9333704d33ad90aa0cc8914b0540e1f68172a225c3c155fef5ca2d788683c0d2", kill_on_drop: false }`
[INFO] [stdout] 9333704d33ad90aa0cc8914b0540e1f68172a225c3c155fef5ca2d788683c0d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 92e6cd99d50bfd7a0fb5a91dc61b7e07005b02abea43cffc42dc1c2bf38ee4dd
[INFO] running `Command { std: "docker" "start" "-a" "92e6cd99d50bfd7a0fb5a91dc61b7e07005b02abea43cffc42dc1c2bf38ee4dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling tokio v1.21.0
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking iana-time-zone v0.1.47
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking pin-project v1.0.12
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking my-redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "92e6cd99d50bfd7a0fb5a91dc61b7e07005b02abea43cffc42dc1c2bf38ee4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e6cd99d50bfd7a0fb5a91dc61b7e07005b02abea43cffc42dc1c2bf38ee4dd", kill_on_drop: false }`
[INFO] [stdout] 92e6cd99d50bfd7a0fb5a91dc61b7e07005b02abea43cffc42dc1c2bf38ee4dd