[INFO] fetching crate timely_communication 0.12.0...
[INFO] checking timely_communication-0.12.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate timely_communication 0.12.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate timely_communication 0.12.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timely_communication 0.12.0
[INFO] finished tweaking crates.io crate timely_communication 0.12.0
[INFO] tweaked toml for crates.io crate timely_communication 0.12.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate timely_communication 0.12.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timely_logging v0.12.0
[INFO] [stderr]   Downloaded timely_bytes v0.12.0
[INFO] [stderr]   Downloaded abomonation_derive v0.5.0
[INFO] [stderr]   Downloaded serde_derive v1.0.124
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] [stderr]   Downloaded bincode v1.3.2
[INFO] [stderr]   Downloaded syn v1.0.63
[INFO] [stderr]   Downloaded serde v1.0.124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2feb3e24d58aa346b4eaf16be9774d7ef3d97f6aa6a9ea110a8a308af4232b98
[INFO] running `Command { std: "docker" "start" "-a" "2feb3e24d58aa346b4eaf16be9774d7ef3d97f6aa6a9ea110a8a308af4232b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2feb3e24d58aa346b4eaf16be9774d7ef3d97f6aa6a9ea110a8a308af4232b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2feb3e24d58aa346b4eaf16be9774d7ef3d97f6aa6a9ea110a8a308af4232b98", kill_on_drop: false }`
[INFO] [stdout] 2feb3e24d58aa346b4eaf16be9774d7ef3d97f6aa6a9ea110a8a308af4232b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c389ebeb2b28252b9b6b1255b0ce3d4cb4ae6e25aec4f48de8d9abc0f140a2d7
[INFO] running `Command { std: "docker" "start" "-a" "c389ebeb2b28252b9b6b1255b0ce3d4cb4ae6e25aec4f48de8d9abc0f140a2d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]     Checking timely_bytes v0.12.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking timely_logging v0.12.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]     Checking timely_communication v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `getopts` is imported redundantly
[INFO] [stdout]   --> src/initialize.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use getopts;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 | extern crate getopts;
[INFO] [stdout]    | --------------------- the item `getopts` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `getopts` is imported redundantly
[INFO] [stdout]   --> src/initialize.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use getopts;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 | extern crate getopts;
[INFO] [stdout]    | --------------------- the item `getopts` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abomonation` is imported redundantly
[INFO] [stdout]   --> src/message.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use abomonation;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | extern crate abomonation;
[INFO] [stdout]    | ------------------------- the item `abomonation` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `abomonation` is imported redundantly
[INFO] [stdout]   --> src/message.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use abomonation;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | extern crate abomonation;
[INFO] [stdout]    | ------------------------- the item `abomonation` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "c389ebeb2b28252b9b6b1255b0ce3d4cb4ae6e25aec4f48de8d9abc0f140a2d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c389ebeb2b28252b9b6b1255b0ce3d4cb4ae6e25aec4f48de8d9abc0f140a2d7", kill_on_drop: false }`
[INFO] [stdout] c389ebeb2b28252b9b6b1255b0ce3d4cb4ae6e25aec4f48de8d9abc0f140a2d7