[INFO] fetching crate twiggy-opt 0.8.0...
[INFO] checking twiggy-opt-0.8.0 against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] extracting crate twiggy-opt 0.8.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate twiggy-opt 0.8.0
[INFO] finished tweaking crates.io crate twiggy-opt 0.8.0
[INFO] tweaked toml for crates.io crate twiggy-opt 0.8.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twiggy-opt 0.8.0 on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate twiggy-opt 0.8.0 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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded frozen v1.0.0
[INFO] [stderr]   Downloaded twiggy-traits v0.8.0
[INFO] [stderr]   Downloaded twiggy-ir v0.8.0
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a68b8bf5fa314b4b0129c80e771da4f2d419a257ce6244a0e7cea8ae0a4e2f5
[INFO] running `Command { std: "docker" "start" "-a" "4a68b8bf5fa314b4b0129c80e771da4f2d419a257ce6244a0e7cea8ae0a4e2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a68b8bf5fa314b4b0129c80e771da4f2d419a257ce6244a0e7cea8ae0a4e2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a68b8bf5fa314b4b0129c80e771da4f2d419a257ce6244a0e7cea8ae0a4e2f5", kill_on_drop: false }`
[INFO] [stdout] 4a68b8bf5fa314b4b0129c80e771da4f2d419a257ce6244a0e7cea8ae0a4e2f5
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3edf6d8fefc0e7455114e76a4590ccfba885d4c251a5f5d704e9900484f5c490
[INFO] running `Command { std: "docker" "start" "-a" "3edf6d8fefc0e7455114e76a4590ccfba885d4c251a5f5d704e9900484f5c490", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking fixedbitset v0.4.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking petgraph v0.6.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking wasmparser v0.80.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling twiggy-opt v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking twiggy-ir v0.8.0
[INFO] [stderr]     Checking twiggy-traits v0.8.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.24s
[INFO] running `Command { std: "docker" "inspect" "3edf6d8fefc0e7455114e76a4590ccfba885d4c251a5f5d704e9900484f5c490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3edf6d8fefc0e7455114e76a4590ccfba885d4c251a5f5d704e9900484f5c490", kill_on_drop: false }`
[INFO] [stdout] 3edf6d8fefc0e7455114e76a4590ccfba885d4c251a5f5d704e9900484f5c490