[INFO] fetching crate duet 0.2.0...
[INFO] testing duet-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate duet 0.2.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate duet 0.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-17/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-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a761a308525d2307fc45dfbeda3daae26336f9fcca972929a60283464fbfd6ef
[INFO] running `Command { std: "docker" "start" "-a" "a761a308525d2307fc45dfbeda3daae26336f9fcca972929a60283464fbfd6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a761a308525d2307fc45dfbeda3daae26336f9fcca972929a60283464fbfd6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a761a308525d2307fc45dfbeda3daae26336f9fcca972929a60283464fbfd6ef", kill_on_drop: false }`
[INFO] [stdout] a761a308525d2307fc45dfbeda3daae26336f9fcca972929a60283464fbfd6ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26c29fa5d924cf6c1682659d851fc327e3d7dd0930efcb23fd04037c9fca0d72
[INFO] running `Command { std: "docker" "start" "-a" "26c29fa5d924cf6c1682659d851fc327e3d7dd0930efcb23fd04037c9fca0d72", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.75
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[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling openssh v0.8.1
[INFO] [stderr]    Compiling readwrite v0.2.0
[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 48.92s
[INFO] running `Command { std: "docker" "inspect" "26c29fa5d924cf6c1682659d851fc327e3d7dd0930efcb23fd04037c9fca0d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c29fa5d924cf6c1682659d851fc327e3d7dd0930efcb23fd04037c9fca0d72", kill_on_drop: false }`
[INFO] [stdout] 26c29fa5d924cf6c1682659d851fc327e3d7dd0930efcb23fd04037c9fca0d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab4fccbd08de5e1184b04f2e62b99af65831cf704dc9f570642955280283a625
[INFO] running `Command { std: "docker" "start" "-a" "ab4fccbd08de5e1184b04f2e62b99af65831cf704dc9f570642955280283a625", 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" "ab4fccbd08de5e1184b04f2e62b99af65831cf704dc9f570642955280283a625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab4fccbd08de5e1184b04f2e62b99af65831cf704dc9f570642955280283a625", kill_on_drop: false }`
[INFO] [stdout] ab4fccbd08de5e1184b04f2e62b99af65831cf704dc9f570642955280283a625