[INFO] fetching crate vy-core 0.2.0...
[INFO] testing vy-core-0.2.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate vy-core 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate vy-core 0.2.0
[INFO] finished tweaking crates.io crate vy-core 0.2.0
[INFO] tweaked toml for crates.io crate vy-core 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vy-core 0.2.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vy-core 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 020069837cf100f4cf78ebb2caeb259f6a968b24975a66a440839d4235f9fe5f
[INFO] running `Command { std: "docker" "start" "-a" "020069837cf100f4cf78ebb2caeb259f6a968b24975a66a440839d4235f9fe5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "020069837cf100f4cf78ebb2caeb259f6a968b24975a66a440839d4235f9fe5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "020069837cf100f4cf78ebb2caeb259f6a968b24975a66a440839d4235f9fe5f", kill_on_drop: false }`
[INFO] [stdout] 020069837cf100f4cf78ebb2caeb259f6a968b24975a66a440839d4235f9fe5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91cd897ed31e4c2bdaafad9237f48c12bb12527524671fe9d0a52a1a458affcb
[INFO] running `Command { std: "docker" "start" "-a" "91cd897ed31e4c2bdaafad9237f48c12bb12527524671fe9d0a52a1a458affcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoap v1.0.1
[INFO] [stderr]    Compiling vy-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "91cd897ed31e4c2bdaafad9237f48c12bb12527524671fe9d0a52a1a458affcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91cd897ed31e4c2bdaafad9237f48c12bb12527524671fe9d0a52a1a458affcb", kill_on_drop: false }`
[INFO] [stdout] 91cd897ed31e4c2bdaafad9237f48c12bb12527524671fe9d0a52a1a458affcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b677d6bc3c892715e1f234561729a2f59136c330a6770d886c5382ad66b9dc0
[INFO] running `Command { std: "docker" "start" "-a" "9b677d6bc3c892715e1f234561729a2f59136c330a6770d886c5382ad66b9dc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling vy-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `std`
[INFO] [stdout]    --> src/buffer.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |     use std::{
[INFO] [stdout]     |         ^^^ use of unresolved module or unlinked crate `std`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `std`, use `cargo add std` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std`
[INFO] [stdout]    --> src/buffer.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |     use std::{
[INFO] [stdout]     |         ^^^ use of unresolved module or unlinked crate `std`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `std`, use `cargo add std` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/buffer.rs:518:13
[INFO] [stdout]     |
[INFO] [stdout] 518 |             handle.join().unwrap();
[INFO] [stdout]     |             ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vy-core` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "9b677d6bc3c892715e1f234561729a2f59136c330a6770d886c5382ad66b9dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b677d6bc3c892715e1f234561729a2f59136c330a6770d886c5382ad66b9dc0", kill_on_drop: false }`
[INFO] [stdout] 9b677d6bc3c892715e1f234561729a2f59136c330a6770d886c5382ad66b9dc0