[INFO] fetching crate serde_styx 3.0.2...
[INFO] checking serde_styx-3.0.2 against master#cf79d034aa3d8f396d407aafce6f1ccd818e710e for pr-155657
[INFO] extracting crate serde_styx 3.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate serde_styx 3.0.2
[INFO] finished tweaking crates.io crate serde_styx 3.0.2
[INFO] tweaked toml for crates.io crate serde_styx 3.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_styx 3.0.2 on toolchain cf79d034aa3d8f396d407aafce6f1ccd818e710e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde_styx 3.0.2 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" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded styx-tree v3.0.2
[INFO] [stderr]   Downloaded facet-testhelpers v0.46.0
[INFO] [stderr]   Downloaded styx-parse v3.0.2
[INFO] [stderr]   Downloaded styx-tokenizer v3.0.1
[INFO] [stderr]   Downloaded styx-format v3.0.2
[INFO] [stderr]   Downloaded mutants v0.0.3
[INFO] [stderr]   Downloaded btparse v0.2.0
[INFO] [stderr]   Downloaded facet-testhelpers-macros v0.46.0
[INFO] [stderr]   Downloaded styx-cst v3.0.2
[INFO] [stderr]   Downloaded color-backtrace v0.7.3
[INFO] [stderr]   Downloaded ariadne v0.6.0
[INFO] [stderr]   Downloaded rowan v0.16.1
[INFO] [stderr]   Downloaded unsynn v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 209ec83df1b47c463271feee23ac74bd8e7299f2bb16765b1bc6cae65f6ba451
[INFO] running `Command { std: "docker" "start" "-a" "209ec83df1b47c463271feee23ac74bd8e7299f2bb16765b1bc6cae65f6ba451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "209ec83df1b47c463271feee23ac74bd8e7299f2bb16765b1bc6cae65f6ba451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209ec83df1b47c463271feee23ac74bd8e7299f2bb16765b1bc6cae65f6ba451", kill_on_drop: false }`
[INFO] [stdout] 209ec83df1b47c463271feee23ac74bd8e7299f2bb16765b1bc6cae65f6ba451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cf79d034aa3d8f396d407aafce6f1ccd818e710e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d36d8bb9958c5722265a813c90a3ef804ed9ccdaf0aac8b23b44629f52b30713
[INFO] running `Command { std: "docker" "start" "-a" "d36d8bb9958c5722265a813c90a3ef804ed9ccdaf0aac8b23b44629f52b30713", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling rustc-hash v2.1.2
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]     Checking btparse v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking countme v3.0.1
[INFO] [stderr]     Checking text-size v1.1.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking ariadne v0.6.0
[INFO] [stderr]    Compiling unsynn v0.3.0
[INFO] [stderr]     Checking object v0.37.3
[INFO] [stderr]     Checking rowan v0.16.1
[INFO] [stderr]    Compiling facet-testhelpers-macros v0.46.0
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking color-backtrace v0.7.3
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking styx-tokenizer v3.0.1
[INFO] [stderr]     Checking facet-testhelpers v0.46.0
[INFO] [stderr]     Checking styx-parse v3.0.2
[INFO] [stderr]     Checking styx-cst v3.0.2
[INFO] [stderr]     Checking styx-tree v3.0.2
[INFO] [stderr]     Checking styx-format v3.0.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_styx v3.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `Command { std: "docker" "inspect" "d36d8bb9958c5722265a813c90a3ef804ed9ccdaf0aac8b23b44629f52b30713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d36d8bb9958c5722265a813c90a3ef804ed9ccdaf0aac8b23b44629f52b30713", kill_on_drop: false }`
[INFO] [stdout] d36d8bb9958c5722265a813c90a3ef804ed9ccdaf0aac8b23b44629f52b30713
