[INFO] fetching crate backtracer_core 0.0.7...
[INFO] checking backtracer_core-0.0.7 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate backtracer_core 0.0.7 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate backtracer_core 0.0.7 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 backtracer_core 0.0.7
[INFO] finished tweaking crates.io crate backtracer_core 0.0.7
[INFO] tweaked toml for crates.io crate backtracer_core 0.0.7 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] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit_field v0.10.2
[INFO] [stderr]   Downloaded addr2line v0.16.0
[INFO] [stderr]   Downloaded raw-cpuid v10.7.0
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded x86 v0.52.0
[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] c8a6ee2b4b71a879082f3a911681cfbd089972a1849b6df9f957d5bda2975460
[INFO] running `Command { std: "docker" "start" "-a" "c8a6ee2b4b71a879082f3a911681cfbd089972a1849b6df9f957d5bda2975460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a6ee2b4b71a879082f3a911681cfbd089972a1849b6df9f957d5bda2975460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a6ee2b4b71a879082f3a911681cfbd089972a1849b6df9f957d5bda2975460", kill_on_drop: false }`
[INFO] [stdout] c8a6ee2b4b71a879082f3a911681cfbd089972a1849b6df9f957d5bda2975460
[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] 64a3bae8975af7f00a49261535f632be811fb0452d549ef24398f3ea6517cbff
[INFO] running `Command { std: "docker" "start" "-a" "64a3bae8975af7f00a49261535f632be811fb0452d549ef24398f3ea6517cbff", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking backtracer_core v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `gimli` is imported redundantly
[INFO] [stdout]  --> src/symbolize/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use addr2line::gimli;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ the item `gimli` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gimli` is imported redundantly
[INFO] [stdout]  --> src/symbolize/freestanding.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use addr2line::gimli;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ the item `gimli` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gimli` is imported redundantly
[INFO] [stdout]  --> src/symbolize/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use addr2line::gimli;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ the item `gimli` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gimli` is imported redundantly
[INFO] [stdout]  --> src/symbolize/freestanding.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use addr2line::gimli;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ the item `gimli` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "64a3bae8975af7f00a49261535f632be811fb0452d549ef24398f3ea6517cbff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64a3bae8975af7f00a49261535f632be811fb0452d549ef24398f3ea6517cbff", kill_on_drop: false }`
[INFO] [stdout] 64a3bae8975af7f00a49261535f632be811fb0452d549ef24398f3ea6517cbff
