[INFO] cloning repository https://github.com/alecsavvy/crabby-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alecsavvy/crabby-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecsavvy%2Fcrabby-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecsavvy%2Fcrabby-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daca90cf96c8a76db43d4413c50e121eebef5cba
[INFO] checking alecsavvy/crabby-bot against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecsavvy%2Fcrabby-bot" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alecsavvy/crabby-bot 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/alecsavvy/crabby-bot
[INFO] finished tweaking git repo https://github.com/alecsavvy/crabby-bot
[INFO] tweaked toml for git repo https://github.com/alecsavvy/crabby-bot written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alecsavvy/crabby-bot 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-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] ff1f68935f29fbf27a9b456737e8e621db9208a2ca443ca09c790cd1f2ab5ef4
[INFO] running `Command { std: "docker" "start" "-a" "ff1f68935f29fbf27a9b456737e8e621db9208a2ca443ca09c790cd1f2ab5ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff1f68935f29fbf27a9b456737e8e621db9208a2ca443ca09c790cd1f2ab5ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1f68935f29fbf27a9b456737e8e621db9208a2ca443ca09c790cd1f2ab5ef4", kill_on_drop: false }`
[INFO] [stdout] ff1f68935f29fbf27a9b456737e8e621db9208a2ca443ca09c790cd1f2ab5ef4
[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] 888a9be2a30c2fd48004f6eb1489520845f041eb7bfc639a66c7b2d8413aa166
[INFO] running `Command { std: "docker" "start" "-a" "888a9be2a30c2fd48004f6eb1489520845f041eb7bfc639a66c7b2d8413aa166", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.65
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling dotenv_codegen_implementation v0.15.0
[INFO] [stderr]     Checking dotenv_codegen v0.15.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking crabby-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `Command { std: "docker" "inspect" "888a9be2a30c2fd48004f6eb1489520845f041eb7bfc639a66c7b2d8413aa166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "888a9be2a30c2fd48004f6eb1489520845f041eb7bfc639a66c7b2d8413aa166", kill_on_drop: false }`
[INFO] [stdout] 888a9be2a30c2fd48004f6eb1489520845f041eb7bfc639a66c7b2d8413aa166
[INFO] checking alecsavvy/crabby-bot against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falecsavvy%2Fcrabby-bot" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alecsavvy/crabby-bot on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alecsavvy/crabby-bot
[INFO] finished tweaking git repo https://github.com/alecsavvy/crabby-bot
[INFO] tweaked toml for git repo https://github.com/alecsavvy/crabby-bot written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/alecsavvy/crabby-bot 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b9ed179d3eb5d3ef0cd3201088eab72dfa827e8f8870ea0f8c10e42b621439e
[INFO] running `Command { std: "docker" "start" "-a" "0b9ed179d3eb5d3ef0cd3201088eab72dfa827e8f8870ea0f8c10e42b621439e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b9ed179d3eb5d3ef0cd3201088eab72dfa827e8f8870ea0f8c10e42b621439e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9ed179d3eb5d3ef0cd3201088eab72dfa827e8f8870ea0f8c10e42b621439e", kill_on_drop: false }`
[INFO] [stdout] 0b9ed179d3eb5d3ef0cd3201088eab72dfa827e8f8870ea0f8c10e42b621439e
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a287bef40c9f67d92ad85e94fb369b6cb3f983a0ea6caf9aefe6c433ce1d621a
[INFO] running `Command { std: "docker" "start" "-a" "a287bef40c9f67d92ad85e94fb369b6cb3f983a0ea6caf9aefe6c433ce1d621a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.65
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling dotenv_codegen_implementation v0.15.0
[INFO] [stderr]     Checking dotenv_codegen v0.15.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking crabby-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.99s
[INFO] running `Command { std: "docker" "inspect" "a287bef40c9f67d92ad85e94fb369b6cb3f983a0ea6caf9aefe6c433ce1d621a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a287bef40c9f67d92ad85e94fb369b6cb3f983a0ea6caf9aefe6c433ce1d621a", kill_on_drop: false }`
[INFO] [stdout] a287bef40c9f67d92ad85e94fb369b6cb3f983a0ea6caf9aefe6c433ce1d621a