[INFO] fetching crate tbot 0.6.7...
[INFO] checking tbot-0.6.7 against beta for pr-78714
[INFO] extracting crate tbot 0.6.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tbot 0.6.7 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tbot 0.6.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tbot 0.6.7
[INFO] tweaked toml for crates.io crate tbot 0.6.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate tbot 0.6.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 560320345ac33c5b3275223e0ec17d6d21070564d36ef28f81e7a0f10bd83382
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "560320345ac33c5b3275223e0ec17d6d21070564d36ef28f81e7a0f10bd83382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "560320345ac33c5b3275223e0ec17d6d21070564d36ef28f81e7a0f10bd83382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "560320345ac33c5b3275223e0ec17d6d21070564d36ef28f81e7a0f10bd83382", kill_on_drop: false }`
[INFO] [stdout] 560320345ac33c5b3275223e0ec17d6d21070564d36ef28f81e7a0f10bd83382
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 998c424b06b58c7741f3f419f8888579bf3a4fb9ba1a5455b4ece11c78d868b9
[INFO] running `Command { std: "docker" "start" "-a" "998c424b06b58c7741f3f419f8888579bf3a4fb9ba1a5455b4ece11c78d868b9", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking typed-headers v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]    Compiling is-macro v0.1.8
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking hyper-proxy v0.6.0
[INFO] [stderr]     Checking tbot v0.6.7 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `BOT_TOKEN` not defined
[INFO] [stdout]     --> src/bot.rs:1086:21
[INFO] [stdout]      |
[INFO] [stdout] 1086 |         let token = env!($var).to_string();
[INFO] [stdout]      |                     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1126 |         let _ = from_env!("BOT_TOKEN");
[INFO] [stdout]      |                 ---------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `BOT_TOKEN` not defined
[INFO] [stdout]     --> src/bot.rs:1086:21
[INFO] [stdout]      |
[INFO] [stdout] 1086 |         let token = env!($var).to_string();
[INFO] [stdout]      |                     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1127 |         let _ = from_env!("BOT_TOKEN",);
[INFO] [stdout]      |                 ----------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `BOT_TOKEN` not defined
[INFO] [stdout]     --> src/bot.rs:1093:21
[INFO] [stdout]      |
[INFO] [stdout] 1093 |         let token = env!($var).to_string();
[INFO] [stdout]      |                     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1130 |         let _ = from_env!("BOT_TOKEN", proxy);
[INFO] [stdout]      |                 ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `BOT_TOKEN` not defined
[INFO] [stdout]     --> src/bot.rs:1093:21
[INFO] [stdout]      |
[INFO] [stdout] 1093 |         let token = env!($var).to_string();
[INFO] [stdout]      |                     ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1133 |         let _ = from_env!("BOT_TOKEN", proxy,);
[INFO] [stdout]      |                 ------------------------------ in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tbot`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "998c424b06b58c7741f3f419f8888579bf3a4fb9ba1a5455b4ece11c78d868b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998c424b06b58c7741f3f419f8888579bf3a4fb9ba1a5455b4ece11c78d868b9", kill_on_drop: false }`
[INFO] [stdout] 998c424b06b58c7741f3f419f8888579bf3a4fb9ba1a5455b4ece11c78d868b9