[INFO] fetching crate tbot 0.6.7...
[INFO] testing tbot-0.6.7 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tbot 0.6.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tbot 0.6.7 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-0/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cca4390eefc0065a2599e59be62f2feceb856b7d30d1e7feedfbaa3e8aa71a5
[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" "7cca4390eefc0065a2599e59be62f2feceb856b7d30d1e7feedfbaa3e8aa71a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cca4390eefc0065a2599e59be62f2feceb856b7d30d1e7feedfbaa3e8aa71a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cca4390eefc0065a2599e59be62f2feceb856b7d30d1e7feedfbaa3e8aa71a5", kill_on_drop: false }`
[INFO] [stdout] 7cca4390eefc0065a2599e59be62f2feceb856b7d30d1e7feedfbaa3e8aa71a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57abdec47f0627f29c428445715bdbffed80c8a8e0136113f17a84c5275a964d
[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" "57abdec47f0627f29c428445715bdbffed80c8a8e0136113f17a84c5275a964d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling socket2 v0.3.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling typed-headers v0.2.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling is-macro v0.1.8
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling futures-executor v0.3.7
[INFO] [stderr]    Compiling futures v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling hyper v0.13.8
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling hyper-proxy v0.6.0
[INFO] [stderr]    Compiling tbot v0.6.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "57abdec47f0627f29c428445715bdbffed80c8a8e0136113f17a84c5275a964d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57abdec47f0627f29c428445715bdbffed80c8a8e0136113f17a84c5275a964d", kill_on_drop: false }`
[INFO] [stdout] 57abdec47f0627f29c428445715bdbffed80c8a8e0136113f17a84c5275a964d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] e00daf17de3ab3b4beaf35aa1867d0db769189e6d44a2de87522d17d8d184ab6
[INFO] running `Command { std: "docker" "start" "-a" "e00daf17de3ab3b4beaf35aa1867d0db769189e6d44a2de87522d17d8d184ab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling meval v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling 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] running `Command { std: "docker" "inspect" "e00daf17de3ab3b4beaf35aa1867d0db769189e6d44a2de87522d17d8d184ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e00daf17de3ab3b4beaf35aa1867d0db769189e6d44a2de87522d17d8d184ab6", kill_on_drop: false }`
[INFO] [stdout] e00daf17de3ab3b4beaf35aa1867d0db769189e6d44a2de87522d17d8d184ab6