[INFO] fetching crate bobbot 0.7.0...
[INFO] checking bobbot-0.7.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate bobbot 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bobbot 0.7.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bobbot 0.7.0
[INFO] finished tweaking crates.io crate bobbot 0.7.0
[INFO] tweaked toml for crates.io crate bobbot 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate bobbot 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typemap_rev v0.1.4
[INFO] [stderr]   Downloaded async-tungstenite v0.9.3
[INFO] [stderr]   Downloaded command_attr v0.3.2
[INFO] [stderr]   Downloaded uwl v0.6.0
[INFO] [stderr]   Downloaded serenity v0.9.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 258b8861c2d4aa5c28a4108b29290744b9b7f489dacc0076d1c4d7b0a8f83649
[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" "258b8861c2d4aa5c28a4108b29290744b9b7f489dacc0076d1c4d7b0a8f83649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "258b8861c2d4aa5c28a4108b29290744b9b7f489dacc0076d1c4d7b0a8f83649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "258b8861c2d4aa5c28a4108b29290744b9b7f489dacc0076d1c4d7b0a8f83649", kill_on_drop: false }`
[INFO] [stdout] 258b8861c2d4aa5c28a4108b29290744b9b7f489dacc0076d1c4d7b0a8f83649
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb7d95133d95f5c135a42364f979f1d9f89683b4b4af47bbb8209670de03ef70
[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" "eb7d95133d95f5c135a42364f979f1d9f89683b4b4af47bbb8209670de03ef70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling pin-project-internal v0.4.27
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[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking futures-io v0.3.12
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[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling serenity v0.9.4
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking typemap_rev v0.1.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling ring v0.16.19
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[INFO] [stderr]    Compiling quote v1.0.8
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[INFO] [stderr]    Compiling mime_guess v2.0.3
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[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking sha-1 v0.9.2
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[INFO] [stderr]     Checking tungstenite v0.11.1
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[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]    Compiling command_attr v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking async-tungstenite v0.9.3
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking bobbot v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/commands/bob/build.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut permissions = category_channel.permission_overwrites.clone();
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/commands/bob/build.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let mut permissions = category_channel.permission_overwrites.clone();
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 15s
[INFO] running `Command { std: "docker" "inspect" "eb7d95133d95f5c135a42364f979f1d9f89683b4b4af47bbb8209670de03ef70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7d95133d95f5c135a42364f979f1d9f89683b4b4af47bbb8209670de03ef70", kill_on_drop: false }`
[INFO] [stdout] eb7d95133d95f5c135a42364f979f1d9f89683b4b4af47bbb8209670de03ef70