[INFO] fetching crate bubblegum 1.0.1...
[INFO] checking bubblegum-1.0.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate bubblegum 1.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bubblegum 1.0.1 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 bubblegum 1.0.1
[INFO] finished tweaking crates.io crate bubblegum 1.0.1
[INFO] tweaked toml for crates.io crate bubblegum 1.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate bubblegum 1.0.1 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded tungstenite v0.17.2
[INFO] [stderr]   Downloaded dot_parse v0.2.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded queues v1.1.0
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded parking_lot v0.4.8
[INFO] [stderr]   Downloaded chashmap v2.2.2
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] [stderr]   Downloaded dot v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b0b8d8a4f2c5a3033ce646dc0b748ec31e7731bc96a41a1a8c67dbad4a558c6f
[INFO] running `Command { std: "docker" "start" "-a" "b0b8d8a4f2c5a3033ce646dc0b748ec31e7731bc96a41a1a8c67dbad4a558c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b8d8a4f2c5a3033ce646dc0b748ec31e7731bc96a41a1a8c67dbad4a558c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b8d8a4f2c5a3033ce646dc0b748ec31e7731bc96a41a1a8c67dbad4a558c6f", kill_on_drop: false }`
[INFO] [stdout] b0b8d8a4f2c5a3033ce646dc0b748ec31e7731bc96a41a1a8c67dbad4a558c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c78e9e8a3918837ab51ec764ab2c10ca5f02d59ad2ca476a0d2b91c95eda398c
[INFO] running `Command { std: "docker" "start" "-a" "c78e9e8a3918837ab51ec764ab2c10ca5f02d59ad2ca476a0d2b91c95eda398c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking more-asserts v0.2.2
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking queues v1.1.0
[INFO] [stderr]     Checking dot_parse v0.2.0
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking bubblegum v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "c78e9e8a3918837ab51ec764ab2c10ca5f02d59ad2ca476a0d2b91c95eda398c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c78e9e8a3918837ab51ec764ab2c10ca5f02d59ad2ca476a0d2b91c95eda398c", kill_on_drop: false }`
[INFO] [stdout] c78e9e8a3918837ab51ec764ab2c10ca5f02d59ad2ca476a0d2b91c95eda398c
