[INFO] fetching crate rustbus 0.19.3...
[INFO] checking rustbus-0.19.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rustbus 0.19.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rustbus 0.19.3 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 rustbus 0.19.3
[INFO] finished tweaking crates.io crate rustbus 0.19.3
[INFO] tweaked toml for crates.io crate rustbus 0.19.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate rustbus 0.19.3 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rustbus_derive v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] afe0c7116f4638e071a6e354314dcb91c5542dc140b1b3f6facc6632fe2d83cb
[INFO] running `Command { std: "docker" "start" "-a" "afe0c7116f4638e071a6e354314dcb91c5542dc140b1b3f6facc6632fe2d83cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afe0c7116f4638e071a6e354314dcb91c5542dc140b1b3f6facc6632fe2d83cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afe0c7116f4638e071a6e354314dcb91c5542dc140b1b3f6facc6632fe2d83cb", kill_on_drop: false }`
[INFO] [stdout] afe0c7116f4638e071a6e354314dcb91c5542dc140b1b3f6facc6632fe2d83cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e052d0be16407708c056f29339578faf702adabc1292e891e85f23cae4a52bc5
[INFO] running `Command { std: "docker" "start" "-a" "e052d0be16407708c056f29339578faf702adabc1292e891e85f23cae4a52bc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking memchr v2.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]    Compiling rustbus_derive v0.5.0
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking rustbus v0.19.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `time` is imported redundantly
[INFO] [stdout]   --> src/connection/rpc_conn.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use super::*;
[INFO] [stdout]    |     -------- the item `time` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 | use std::time;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]  --> src/wire/marshal/traits.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use base::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]   --> src/wire/unmarshal/traits.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use base::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: the item `time` is imported redundantly
[INFO] [stdout]   --> src/connection/rpc_conn.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use super::*;
[INFO] [stdout]    |     -------- the item `time` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 10 | use std::time;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `UnixAddr` is imported redundantly
[INFO] [stdout]    --> src/connection.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use super::*;
[INFO] [stdout]     |         -------- the item `UnixAddr` is already imported here
[INFO] [stdout] 155 |     use nix::sys::socket::UnixAddr;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]    --> src/signature.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 419 |     use std::string::String;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]  --> src/wire/marshal/traits.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use base::*;
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base::*`
[INFO] [stdout]   --> src/wire/unmarshal/traits.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use base::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.13s
[INFO] running `Command { std: "docker" "inspect" "e052d0be16407708c056f29339578faf702adabc1292e891e85f23cae4a52bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e052d0be16407708c056f29339578faf702adabc1292e891e85f23cae4a52bc5", kill_on_drop: false }`
[INFO] [stdout] e052d0be16407708c056f29339578faf702adabc1292e891e85f23cae4a52bc5