[INFO] fetching crate semolina 0.1.4...
[INFO] testing semolina-0.1.4 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate semolina 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate semolina 0.1.4
[INFO] finished tweaking crates.io crate semolina 0.1.4
[INFO] tweaked toml for crates.io crate semolina 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate semolina 0.1.4 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a10b96af68a9261484b4b6a91682c14dac9c5c71501d869ee20a00a76e3e1341
[INFO] running `Command { std: "docker" "start" "-a" "a10b96af68a9261484b4b6a91682c14dac9c5c71501d869ee20a00a76e3e1341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a10b96af68a9261484b4b6a91682c14dac9c5c71501d869ee20a00a76e3e1341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a10b96af68a9261484b4b6a91682c14dac9c5c71501d869ee20a00a76e3e1341", kill_on_drop: false }`
[INFO] [stdout] a10b96af68a9261484b4b6a91682c14dac9c5c71501d869ee20a00a76e3e1341
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea0fd2d428e79008af6eb069e812a8260cc6d77e09567cc071750d8c17b9559d
[INFO] running `Command { std: "docker" "start" "-a" "ea0fd2d428e79008af6eb069e812a8260cc6d77e09567cc071750d8c17b9559d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling semolina v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "ea0fd2d428e79008af6eb069e812a8260cc6d77e09567cc071750d8c17b9559d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0fd2d428e79008af6eb069e812a8260cc6d77e09567cc071750d8c17b9559d", kill_on_drop: false }`
[INFO] [stdout] ea0fd2d428e79008af6eb069e812a8260cc6d77e09567cc071750d8c17b9559d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5599dab8a900a800a2ba6050e2b3fb270a57f38e7d4b83f08741b2aad786c7f5
[INFO] running `Command { std: "docker" "start" "-a" "5599dab8a900a800a2ba6050e2b3fb270a57f38e7d4b83f08741b2aad786c7f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.10.1
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling cpufeatures v0.3.0
[INFO] [stderr]    Compiling chacha20 v0.10.0
[INFO] [stderr]    Compiling rand v0.10.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.10.0
[INFO] [stderr]    Compiling semolina v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand::RngCore`
[INFO] [stdout]    --> src/lib.rs:487:16
[INFO] [stdout]     |
[INFO] [stdout] 487 |     use rand::{RngCore, SeedableRng};
[INFO] [stdout]     |                ^^^^^^^ no `RngCore` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]    --> src/lib.rs:487:25
[INFO] [stdout]     |
[INFO] [stdout] 487 |     use rand::{RngCore, SeedableRng};
[INFO] [stdout]     |                         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `from_entropy` found for struct `ChaCha20Rng` in the current scope
[INFO] [stdout]    --> src/lib.rs:518:44
[INFO] [stdout]     |
[INFO] [stdout] 518 |                 let mut rng = ChaCha20Rng::from_entropy();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^ associated function or constant not found in `ChaCha20Rng`
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from_rng` with a similar name
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rand_core-0.10.1/src/seedable_rng.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn from_rng<R: Rng + ?Sized>(rng: &mut R) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `semolina` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5599dab8a900a800a2ba6050e2b3fb270a57f38e7d4b83f08741b2aad786c7f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5599dab8a900a800a2ba6050e2b3fb270a57f38e7d4b83f08741b2aad786c7f5", kill_on_drop: false }`
[INFO] [stdout] 5599dab8a900a800a2ba6050e2b3fb270a57f38e7d4b83f08741b2aad786c7f5
