[INFO] fetching crate duet 0.2.0...
[INFO] testing duet-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate duet 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate duet 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duet 0.2.0
[INFO] finished tweaking crates.io crate duet 0.2.0
[INFO] tweaked toml for crates.io crate duet 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate duet 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomicwrites v0.3.0
[INFO] [stderr]   Downloaded fnmatch-regex v0.1.0
[INFO] [stderr]   Downloaded openssh v0.8.1
[INFO] [stderr]   Downloaded quit_macros v1.1.4
[INFO] [stderr]   Downloaded machine-uid v0.2.0
[INFO] [stderr]   Downloaded quit v1.1.4
[INFO] [stderr]   Downloaded essrpc_macros v0.4.0
[INFO] [stderr]   Downloaded unix_mode v0.1.2
[INFO] [stderr]   Downloaded essrpc v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c01cf31c0e917f323f0566934b561541722bf46ca547041bc510af94333a1b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c01cf31c0e917f323f0566934b561541722bf46ca547041bc510af94333a1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c01cf31c0e917f323f0566934b561541722bf46ca547041bc510af94333a1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c01cf31c0e917f323f0566934b561541722bf46ca547041bc510af94333a1b6", kill_on_drop: false }`
[INFO] [stdout] 7c01cf31c0e917f323f0566934b561541722bf46ca547041bc510af94333a1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e514c425d62a4d72f223de0867dde97faee2ad5abd157382a95ebcab036364b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e514c425d62a4d72f223de0867dde97faee2ad5abd157382a95ebcab036364b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling quit_macros v1.1.4
[INFO] [stderr]    Compiling machine-uid v0.2.0
[INFO] [stderr]    Compiling unix_mode v0.1.2
[INFO] [stderr]    Compiling path-clean v0.1.0
[INFO] [stderr]    Compiling text_io v0.1.9
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling sharded-slab v0.1.3
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tinyvec v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling object v0.26.1
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling fnmatch-regex v0.1.0
[INFO] [stderr]    Compiling quit v1.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling nix v0.22.1
[INFO] [stderr]    Compiling nix v0.20.1
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling shellexpand v2.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling dialoguer v0.8.0
[INFO] [stderr]    Compiling ctrlc v3.2.0
[INFO] [stderr]    Compiling atomicwrites v0.3.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling essrpc_macros v0.4.0
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling simple-logging v2.0.2
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling tracing-error v0.1.2
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling color-spantrace v0.1.6
[INFO] [stderr]    Compiling color-eyre v0.5.11
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling readwrite v0.2.0
[INFO] [stderr]    Compiling openssh v0.8.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling essrpc v0.4.1
[INFO] [stderr]    Compiling cargo-lock v7.0.1
[INFO] [stderr]    Compiling built v0.5.1
[INFO] [stderr]    Compiling duet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "e514c425d62a4d72f223de0867dde97faee2ad5abd157382a95ebcab036364b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e514c425d62a4d72f223de0867dde97faee2ad5abd157382a95ebcab036364b9", kill_on_drop: false }`
[INFO] [stdout] e514c425d62a4d72f223de0867dde97faee2ad5abd157382a95ebcab036364b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4157819d58fe1adcc2b3fc2791ba602f7b40b3720bcf5a54302c6f267331ca4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4157819d58fe1adcc2b3fc2791ba602f7b40b3720bcf5a54302c6f267331ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling duet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rand`
[INFO] [stdout]   --> src/rustsync.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 | extern crate rand;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand`
[INFO] [stdout]    --> src/rustsync.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |     use rand;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `duet` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b4157819d58fe1adcc2b3fc2791ba602f7b40b3720bcf5a54302c6f267331ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4157819d58fe1adcc2b3fc2791ba602f7b40b3720bcf5a54302c6f267331ca4", kill_on_drop: false }`
[INFO] [stdout] b4157819d58fe1adcc2b3fc2791ba602f7b40b3720bcf5a54302c6f267331ca4