[INFO] fetching crate adlib 0.1.1...
[INFO] testing adlib-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate adlib 0.1.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate adlib 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate adlib 0.1.1
[INFO] finished tweaking crates.io crate adlib 0.1.1
[INFO] tweaked toml for crates.io crate adlib 0.1.1 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa459aa94f00a574f58cb2bc14b5dfb4ce3b5e8b0876af9dac4d3c4ae7bafda
[INFO] running `Command { std: "docker" "start" "-a" "bfa459aa94f00a574f58cb2bc14b5dfb4ce3b5e8b0876af9dac4d3c4ae7bafda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa459aa94f00a574f58cb2bc14b5dfb4ce3b5e8b0876af9dac4d3c4ae7bafda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa459aa94f00a574f58cb2bc14b5dfb4ce3b5e8b0876af9dac4d3c4ae7bafda", kill_on_drop: false }`
[INFO] [stdout] bfa459aa94f00a574f58cb2bc14b5dfb4ce3b5e8b0876af9dac4d3c4ae7bafda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a560f32b6e0b61b0aa17b36e58f66abbc26abeee9681fe29e92de48d1ddf6fd5
[INFO] running `Command { std: "docker" "start" "-a" "a560f32b6e0b61b0aa17b36e58f66abbc26abeee9681fe29e92de48d1ddf6fd5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling adlib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn plug<'a>(&'a mut self, mut plug: P) -> &'a mut Self {
[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: field is never read: `source`
[INFO] [stdout]  --> src/pipe.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     source: IN,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sink`
[INFO] [stdout]  --> src/pipe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sink: OUT,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev`
[INFO] [stdout]   --> src/plug.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) prev: &'a dyn Stream<Item = PipeMessage>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.23s
[INFO] running `Command { std: "docker" "inspect" "a560f32b6e0b61b0aa17b36e58f66abbc26abeee9681fe29e92de48d1ddf6fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a560f32b6e0b61b0aa17b36e58f66abbc26abeee9681fe29e92de48d1ddf6fd5", kill_on_drop: false }`
[INFO] [stdout] a560f32b6e0b61b0aa17b36e58f66abbc26abeee9681fe29e92de48d1ddf6fd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c60d3ba7b1a8428b4b6606968e7255367d57095c731b47018fe104547653d22
[INFO] running `Command { std: "docker" "start" "-a" "9c60d3ba7b1a8428b4b6606968e7255367d57095c731b47018fe104547653d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling adlib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn plug<'a>(&'a mut self, mut plug: P) -> &'a mut Self {
[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: field is never read: `source`
[INFO] [stdout]  --> src/pipe.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     source: IN,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sink`
[INFO] [stdout]  --> src/pipe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sink: OUT,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev`
[INFO] [stdout]   --> src/plug.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) prev: &'a dyn Stream<Item = PipeMessage>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pipe.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn plug<'a>(&'a mut self, mut plug: P) -> &'a mut Self {
[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: field is never read: `source`
[INFO] [stdout]  --> src/pipe.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     source: IN,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sink`
[INFO] [stdout]  --> src/pipe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     sink: OUT,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev`
[INFO] [stdout]   --> src/plug.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub(crate) prev: &'a dyn Stream<Item = PipeMessage>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "9c60d3ba7b1a8428b4b6606968e7255367d57095c731b47018fe104547653d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c60d3ba7b1a8428b4b6606968e7255367d57095c731b47018fe104547653d22", kill_on_drop: false }`
[INFO] [stdout] 9c60d3ba7b1a8428b4b6606968e7255367d57095c731b47018fe104547653d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6868a1ee9a8f354e67b903b7259402a6428b4fbccbe1970d1a71bdf58f46274
[INFO] running `Command { std: "docker" "start" "-a" "a6868a1ee9a8f354e67b903b7259402a6428b4fbccbe1970d1a71bdf58f46274", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pipe.rs:10:35
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn plug<'a>(&'a mut self, mut plug: P) -> &'a mut Self {
[INFO] [stderr]    |                                   ----^^^^
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `source`
[INFO] [stderr]  --> src/pipe.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     source: IN,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sink`
[INFO] [stderr]  --> src/pipe.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     sink: OUT,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev`
[INFO] [stderr]   --> src/plug.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub(crate) prev: &'a dyn Stream<Item = PipeMessage>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/pipe.rs:10:35
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn plug<'a>(&'a mut self, mut plug: P) -> &'a mut Self {
[INFO] [stderr]    |                                   ----^^^^
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `source`
[INFO] [stderr]  --> src/pipe.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     source: IN,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sink`
[INFO] [stderr]  --> src/pipe.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     sink: OUT,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev`
[INFO] [stderr]   --> src/plug.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub(crate) prev: &'a dyn Stream<Item = PipeMessage>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/adlib-b08ed122822e9814)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests adlib
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6868a1ee9a8f354e67b903b7259402a6428b4fbccbe1970d1a71bdf58f46274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6868a1ee9a8f354e67b903b7259402a6428b4fbccbe1970d1a71bdf58f46274", kill_on_drop: false }`
[INFO] [stdout] a6868a1ee9a8f354e67b903b7259402a6428b4fbccbe1970d1a71bdf58f46274
