[INFO] fetching crate barnsley 0.2.1...
[INFO] checking barnsley-0.2.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate barnsley 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate barnsley 0.2.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate barnsley 0.2.1
[INFO] finished tweaking crates.io crate barnsley 0.2.1
[INFO] tweaked toml for crates.io crate barnsley 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate barnsley 0.2.1 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded half v2.2.1
[INFO] [stderr]   Downloaded exr v1.71.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5af25e06d4871580d19872b31622dc7296d8851a455a22a96acbf39d84c8eb0
[INFO] running `Command { std: "docker" "start" "-a" "c5af25e06d4871580d19872b31622dc7296d8851a455a22a96acbf39d84c8eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5af25e06d4871580d19872b31622dc7296d8851a455a22a96acbf39d84c8eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5af25e06d4871580d19872b31622dc7296d8851a455a22a96acbf39d84c8eb0", kill_on_drop: false }`
[INFO] [stdout] c5af25e06d4871580d19872b31622dc7296d8851a455a22a96acbf39d84c8eb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b805b105d414b616aa78e715571753c05353021c9ba460edbf1d66550048751
[INFO] running `Command { std: "docker" "start" "-a" "1b805b105d414b616aa78e715571753c05353021c9ba460edbf1d66550048751", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling num-traits v0.2.17
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[INFO] [stderr]    Compiling strum_macros v0.25.3
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[INFO] [stderr]     Checking barnsley v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]  --> src/ifs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 3 | use rand::distributions::WeightedIndex;
[INFO] [stdout] 4 | use rand_distr::Distribution;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/transform.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 16 | use rand_distr::{Distribution, Normal};
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/transform.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/util.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{default::Default, ops::{Add, Mul}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]  --> src/ifs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::prelude::*;
[INFO] [stdout]   |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 3 | use rand::distributions::WeightedIndex;
[INFO] [stdout] 4 | use rand_distr::Distribution;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Distribution` is imported redundantly
[INFO] [stdout]   --> src/transform.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ---------------- the item `Distribution` is already imported here
[INFO] [stdout] 16 | use rand_distr::{Distribution, Normal};
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/transform.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/util.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{default::Default, ops::{Add, Mul}};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.62s
[INFO] running `Command { std: "docker" "inspect" "1b805b105d414b616aa78e715571753c05353021c9ba460edbf1d66550048751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b805b105d414b616aa78e715571753c05353021c9ba460edbf1d66550048751", kill_on_drop: false }`
[INFO] [stdout] 1b805b105d414b616aa78e715571753c05353021c9ba460edbf1d66550048751
