[INFO] cloning repository https://github.com/paulotten/tokio_mini_redis_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paulotten/tokio_mini_redis_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulotten%2Ftokio_mini_redis_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulotten%2Ftokio_mini_redis_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77550073b0bd9396f62221fab36b03edebbf3933
[INFO] checking paulotten/tokio_mini_redis_tutorial against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulotten%2Ftokio_mini_redis_tutorial" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulotten/tokio_mini_redis_tutorial on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paulotten/tokio_mini_redis_tutorial
[INFO] finished tweaking git repo https://github.com/paulotten/tokio_mini_redis_tutorial
[INFO] tweaked toml for git repo https://github.com/paulotten/tokio_mini_redis_tutorial written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paulotten/tokio_mini_redis_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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.1
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[INFO] [stderr]   Downloaded mini-redis v0.2.0
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[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 207a68720eb864244258ca982afe01a0cf519037f2c58fa4f18c1468971a9d60
[INFO] running `Command { std: "docker" "start" "-a" "207a68720eb864244258ca982afe01a0cf519037f2c58fa4f18c1468971a9d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "207a68720eb864244258ca982afe01a0cf519037f2c58fa4f18c1468971a9d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207a68720eb864244258ca982afe01a0cf519037f2c58fa4f18c1468971a9d60", kill_on_drop: false }`
[INFO] [stdout] 207a68720eb864244258ca982afe01a0cf519037f2c58fa4f18c1468971a9d60
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b331899160fd22f6594a179e490627ef1d5f0ba9ab5395fbae880e375b332e01
[INFO] running `Command { std: "docker" "start" "-a" "b331899160fd22f6594a179e490627ef1d5f0ba9ab5395fbae880e375b332e01", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
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[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking unicode-width v0.1.8
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[INFO] [stderr]     Checking signal-hook-registry v1.2.1
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[INFO] [stderr]     Checking tracing-log v0.1.1
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[INFO] [stderr]     Checking atoi v0.3.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
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[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.12
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
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[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
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[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking mini-redis v0.2.0
[INFO] [stderr]     Checking tokio_mini_redis_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.69s
[INFO] running `Command { std: "docker" "inspect" "b331899160fd22f6594a179e490627ef1d5f0ba9ab5395fbae880e375b332e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b331899160fd22f6594a179e490627ef1d5f0ba9ab5395fbae880e375b332e01", kill_on_drop: false }`
[INFO] [stdout] b331899160fd22f6594a179e490627ef1d5f0ba9ab5395fbae880e375b332e01
[INFO] checking paulotten/tokio_mini_redis_tutorial against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulotten%2Ftokio_mini_redis_tutorial" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulotten/tokio_mini_redis_tutorial on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paulotten/tokio_mini_redis_tutorial
[INFO] finished tweaking git repo https://github.com/paulotten/tokio_mini_redis_tutorial
[INFO] tweaked toml for git repo https://github.com/paulotten/tokio_mini_redis_tutorial written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/paulotten/tokio_mini_redis_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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dde09225c7f00c36201708e4a61b6e8747db0f5fd2231266e2c7c0898801357
[INFO] running `Command { std: "docker" "start" "-a" "7dde09225c7f00c36201708e4a61b6e8747db0f5fd2231266e2c7c0898801357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dde09225c7f00c36201708e4a61b6e8747db0f5fd2231266e2c7c0898801357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dde09225c7f00c36201708e4a61b6e8747db0f5fd2231266e2c7c0898801357", kill_on_drop: false }`
[INFO] [stdout] 7dde09225c7f00c36201708e4a61b6e8747db0f5fd2231266e2c7c0898801357
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 432f5f11da24a4e932ac344e14141508f0478c8a8a325ac0806f6a3a9147dd90
[INFO] running `Command { std: "docker" "start" "-a" "432f5f11da24a4e932ac344e14141508f0478c8a8a325ac0806f6a3a9147dd90", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
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[INFO] [stderr]    Compiling syn v1.0.41
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[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking mini-redis v0.2.0
[INFO] [stderr]     Checking tokio_mini_redis_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.77s
[INFO] running `Command { std: "docker" "inspect" "432f5f11da24a4e932ac344e14141508f0478c8a8a325ac0806f6a3a9147dd90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432f5f11da24a4e932ac344e14141508f0478c8a8a325ac0806f6a3a9147dd90", kill_on_drop: false }`
[INFO] [stdout] 432f5f11da24a4e932ac344e14141508f0478c8a8a325ac0806f6a3a9147dd90