[INFO] fetching crate txt_writer 0.1.4...
[INFO] building txt_writer-0.1.4 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate txt_writer 0.1.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate txt_writer 0.1.4
[INFO] finished tweaking crates.io crate txt_writer 0.1.4
[INFO] tweaked toml for crates.io crate txt_writer 0.1.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate txt_writer 0.1.4 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate txt_writer 0.1.4 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43b33683020073a0bcda8d198d5f2ac1f673881a5bac438da1b1d292de69651c
[INFO] running `Command { std: "docker" "start" "-a" "43b33683020073a0bcda8d198d5f2ac1f673881a5bac438da1b1d292de69651c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43b33683020073a0bcda8d198d5f2ac1f673881a5bac438da1b1d292de69651c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b33683020073a0bcda8d198d5f2ac1f673881a5bac438da1b1d292de69651c", kill_on_drop: false }`
[INFO] [stdout] 43b33683020073a0bcda8d198d5f2ac1f673881a5bac438da1b1d292de69651c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a03efd632ca3494f08d2a06d3f75a898cec64d03e9d45f9871e00ad18105a35
[INFO] running `Command { std: "docker" "start" "-a" "7a03efd632ca3494f08d2a06d3f75a898cec64d03e9d45f9871e00ad18105a35", kill_on_drop: false }`
[INFO] [stderr]    Compiling txt_writer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "7a03efd632ca3494f08d2a06d3f75a898cec64d03e9d45f9871e00ad18105a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a03efd632ca3494f08d2a06d3f75a898cec64d03e9d45f9871e00ad18105a35", kill_on_drop: false }`
[INFO] [stdout] 7a03efd632ca3494f08d2a06d3f75a898cec64d03e9d45f9871e00ad18105a35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1653674b00be87d911dc866e22bc8b3784924231cc2fbe7e2e2edafc2d9bba17
[INFO] running `Command { std: "docker" "start" "-a" "1653674b00be87d911dc866e22bc8b3784924231cc2fbe7e2e2edafc2d9bba17", kill_on_drop: false }`
[INFO] [stderr]    Compiling txt_writer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "1653674b00be87d911dc866e22bc8b3784924231cc2fbe7e2e2edafc2d9bba17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1653674b00be87d911dc866e22bc8b3784924231cc2fbe7e2e2edafc2d9bba17", kill_on_drop: false }`
[INFO] [stdout] 1653674b00be87d911dc866e22bc8b3784924231cc2fbe7e2e2edafc2d9bba17