[INFO] fetching crate slimproto 0.1.14...
[INFO] checking slimproto-0.1.14 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate slimproto 0.1.14 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate slimproto 0.1.14 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slimproto 0.1.14
[INFO] finished tweaking crates.io crate slimproto 0.1.14
[INFO] tweaked toml for crates.io crate slimproto 0.1.14 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 16 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding memoffset v0.6.5 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.23.2 (latest: v0.28.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded socket-server-mocker v0.0.4
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63ea6767ef5806e875eb3e8cafbf002c7a09b9fe23f2b4285d9027b7581fcb46
[INFO] running `Command { std: "docker" "start" "-a" "63ea6767ef5806e875eb3e8cafbf002c7a09b9fe23f2b4285d9027b7581fcb46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63ea6767ef5806e875eb3e8cafbf002c7a09b9fe23f2b4285d9027b7581fcb46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ea6767ef5806e875eb3e8cafbf002c7a09b9fe23f2b4285d9027b7581fcb46", kill_on_drop: false }`
[INFO] [stdout] 63ea6767ef5806e875eb3e8cafbf002c7a09b9fe23f2b4285d9027b7581fcb46
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37c3bc3295a863a89fc8ae9128e7a48f3894f6f7b33b06fb2d6965c5cb856d58
[INFO] running `Command { std: "docker" "start" "-a" "37c3bc3295a863a89fc8ae9128e7a48f3894f6f7b33b06fb2d6965c5cb856d58", kill_on_drop: false }`
[INFO] [stderr]     Checking socket-server-mocker v0.0.4
[INFO] [stderr]     Checking framous v0.1.3
[INFO] [stderr]     Checking mac_address v1.1.5
[INFO] [stderr]     Checking slimproto v0.1.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{convert::TryInto, io, net::Ipv4Addr, time::Duration};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `framous` is imported redundantly
[INFO] [stdout]  --> src/codec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use framous::{self, Decoder, Encoder};
[INFO] [stdout]   |               ^^^^ the item `framous` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{convert::TryInto, io, net::Ipv4Addr, time::Duration};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "37c3bc3295a863a89fc8ae9128e7a48f3894f6f7b33b06fb2d6965c5cb856d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c3bc3295a863a89fc8ae9128e7a48f3894f6f7b33b06fb2d6965c5cb856d58", kill_on_drop: false }`
[INFO] [stdout] 37c3bc3295a863a89fc8ae9128e7a48f3894f6f7b33b06fb2d6965c5cb856d58
[INFO] checking slimproto-0.1.14 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate slimproto 0.1.14 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate slimproto 0.1.14 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slimproto 0.1.14
[INFO] finished tweaking crates.io crate slimproto 0.1.14
[INFO] tweaked toml for crates.io crate slimproto 0.1.14 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding memoffset v0.6.5 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.23.2 (latest: v0.28.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6be7e1b3d8e9beb245e86f0f12e5e0d5c8176ecc5df4e7d8cdf6dc82a048490c
[INFO] running `Command { std: "docker" "start" "-a" "6be7e1b3d8e9beb245e86f0f12e5e0d5c8176ecc5df4e7d8cdf6dc82a048490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6be7e1b3d8e9beb245e86f0f12e5e0d5c8176ecc5df4e7d8cdf6dc82a048490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be7e1b3d8e9beb245e86f0f12e5e0d5c8176ecc5df4e7d8cdf6dc82a048490c", kill_on_drop: false }`
[INFO] [stdout] 6be7e1b3d8e9beb245e86f0f12e5e0d5c8176ecc5df4e7d8cdf6dc82a048490c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa52ae1b446970ca4358c4f7a961f4b670fdd8b7255e71f8639cbf2c2a3a5d7a
[INFO] running `Command { std: "docker" "start" "-a" "aa52ae1b446970ca4358c4f7a961f4b670fdd8b7255e71f8639cbf2c2a3a5d7a", kill_on_drop: false }`
[INFO] [stderr]     Checking socket-server-mocker v0.0.4
[INFO] [stderr]     Checking framous v0.1.3
[INFO] [stderr]     Checking mac_address v1.1.5
[INFO] [stderr]     Checking slimproto v0.1.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `framous` is imported redundantly
[INFO] [stdout]  --> src/codec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use framous::{self, Decoder, Encoder};
[INFO] [stdout]   |               ^^^^ the item `framous` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{convert::TryInto, io, net::Ipv4Addr, time::Duration};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/codec.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{convert::TryInto, io, net::Ipv4Addr, time::Duration};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning 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 0.65s
[INFO] running `Command { std: "docker" "inspect" "aa52ae1b446970ca4358c4f7a961f4b670fdd8b7255e71f8639cbf2c2a3a5d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa52ae1b446970ca4358c4f7a961f4b670fdd8b7255e71f8639cbf2c2a3a5d7a", kill_on_drop: false }`
[INFO] [stdout] aa52ae1b446970ca4358c4f7a961f4b670fdd8b7255e71f8639cbf2c2a3a5d7a