[INFO] fetching crate channels 0.13.0...
[INFO] checking channels-0.13.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate channels 0.13.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate channels 0.13.0
[INFO] finished tweaking crates.io crate channels 0.13.0
[INFO] tweaked toml for crates.io crate channels 0.13.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate channels 0.13.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 119 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-io v0.6.1
[INFO] [stderr]   Downloaded channels-serdes v0.2.1
[INFO] [stderr]   Downloaded channels-io v0.3.0
[INFO] [stderr]   Downloaded channels-macros v0.1.0
[INFO] [stderr]   Downloaded channels-packet v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2f3b7322abc6cc0b44de51313cc737dd3871d07d0a859d7c1ce8c49180e8533
[INFO] running `Command { std: "docker" "start" "-a" "f2f3b7322abc6cc0b44de51313cc737dd3871d07d0a859d7c1ce8c49180e8533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2f3b7322abc6cc0b44de51313cc737dd3871d07d0a859d7c1ce8c49180e8533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2f3b7322abc6cc0b44de51313cc737dd3871d07d0a859d7c1ce8c49180e8533", kill_on_drop: false }`
[INFO] [stdout] f2f3b7322abc6cc0b44de51313cc737dd3871d07d0a859d7c1ce8c49180e8533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89168bec1e7e81b99ea0cb167fcd678f153346e64326d00749a3b13c1d5e4513
[INFO] running `Command { std: "docker" "start" "-a" "89168bec1e7e81b99ea0cb167fcd678f153346e64326d00749a3b13c1d5e4513", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling channels-io v0.3.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling channels-macros v0.1.0
[INFO] [stderr]    Compiling channels-packet v0.2.0
[INFO] [stderr]    Compiling channels v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking channels-serdes v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stdout] warning: unused import: `Statistics`
[INFO] [stdout]   --> src/receiver/mod.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::statistics::{StatIO, Statistics};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Statistics`
[INFO] [stdout]   --> src/sender/mod.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::statistics::{StatIO, Statistics};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stdout] warning: unused import: `Statistics`
[INFO] [stdout]   --> src/receiver/mod.rs:11:33
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::statistics::{StatIO, Statistics};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Statistics`
[INFO] [stdout]   --> src/sender/mod.rs:14:33
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::statistics::{StatIO, Statistics};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.12s
[INFO] running `Command { std: "docker" "inspect" "89168bec1e7e81b99ea0cb167fcd678f153346e64326d00749a3b13c1d5e4513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89168bec1e7e81b99ea0cb167fcd678f153346e64326d00749a3b13c1d5e4513", kill_on_drop: false }`
[INFO] [stdout] 89168bec1e7e81b99ea0cb167fcd678f153346e64326d00749a3b13c1d5e4513