[INFO] fetching crate btree_graph 0.2.2...
[INFO] checking btree_graph-0.2.2 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate btree_graph 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate btree_graph 0.2.2 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 btree_graph 0.2.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate btree_graph 0.2.2
[INFO] tweaked toml for crates.io crate btree_graph 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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 try_encoding_from v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1f32361156188b64b68ecd736e40d003969857d35f5a0e11ee1e08893497ab4f
[INFO] running `Command { std: "docker" "start" "-a" "1f32361156188b64b68ecd736e40d003969857d35f5a0e11ee1e08893497ab4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f32361156188b64b68ecd736e40d003969857d35f5a0e11ee1e08893497ab4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f32361156188b64b68ecd736e40d003969857d35f5a0e11ee1e08893497ab4f", kill_on_drop: false }`
[INFO] [stdout] 1f32361156188b64b68ecd736e40d003969857d35f5a0e11ee1e08893497ab4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 835238e557dbbd179e635eb50ae76a47776d4fd073175aefaccfb9e92db45ca8
[INFO] running `Command { std: "docker" "start" "-a" "835238e557dbbd179e635eb50ae76a47776d4fd073175aefaccfb9e92db45ca8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking btree_graph v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/graph/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/prelude/mod.rs:28:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]  --> src/graph/test.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use crate::error::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     use crate::graph::*;
[INFO] [stdout]   |         --------------- the item `Error` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BTreeMap` is imported redundantly
[INFO] [stdout]  --> src/graph/test.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use crate::graph::*;
[INFO] [stdout]   |         --------------- the item `BTreeMap` is already imported here
[INFO] [stdout] 6 |     use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BTreeSet` is imported redundantly
[INFO] [stdout]  --> src/graph/test.rs:6:40
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use crate::graph::*;
[INFO] [stdout]   |         --------------- the item `BTreeSet` is already imported here
[INFO] [stdout] 6 |     use alloc::collections::{BTreeMap, BTreeSet};
[INFO] [stdout]   |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/graph/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/prelude/mod.rs:28:13
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "835238e557dbbd179e635eb50ae76a47776d4fd073175aefaccfb9e92db45ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835238e557dbbd179e635eb50ae76a47776d4fd073175aefaccfb9e92db45ca8", kill_on_drop: false }`
[INFO] [stdout] 835238e557dbbd179e635eb50ae76a47776d4fd073175aefaccfb9e92db45ca8
