[INFO] fetching crate utf8_reader 0.7.0...
[INFO] building utf8_reader-0.7.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate utf8_reader 0.7.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate utf8_reader 0.7.0
[INFO] finished tweaking crates.io crate utf8_reader 0.7.0
[INFO] tweaked toml for crates.io crate utf8_reader 0.7.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf8_reader 0.7.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 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] f758bb18db258ade967c1d5864757b663ff5547c5cbb6d4c4f041758ef90c7c0
[INFO] running `Command { std: "docker" "start" "-a" "f758bb18db258ade967c1d5864757b663ff5547c5cbb6d4c4f041758ef90c7c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f758bb18db258ade967c1d5864757b663ff5547c5cbb6d4c4f041758ef90c7c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f758bb18db258ade967c1d5864757b663ff5547c5cbb6d4c4f041758ef90c7c0", kill_on_drop: false }`
[INFO] [stdout] f758bb18db258ade967c1d5864757b663ff5547c5cbb6d4c4f041758ef90c7c0
[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] 461710dd3d1d10e96d34ad20cc48e91a958d9f2844470965a92230a3528e2f8c
[INFO] running `Command { std: "docker" "start" "-a" "461710dd3d1d10e96d34ad20cc48e91a958d9f2844470965a92230a3528e2f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8_reader v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "461710dd3d1d10e96d34ad20cc48e91a958d9f2844470965a92230a3528e2f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461710dd3d1d10e96d34ad20cc48e91a958d9f2844470965a92230a3528e2f8c", kill_on_drop: false }`
[INFO] [stdout] 461710dd3d1d10e96d34ad20cc48e91a958d9f2844470965a92230a3528e2f8c
[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] 109554adab3e36ddc3b131d736b8d66b2ac47a29e4b5658d9adb0be0d6c8e294
[INFO] running `Command { std: "docker" "start" "-a" "109554adab3e36ddc3b131d736b8d66b2ac47a29e4b5658d9adb0be0d6c8e294", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8_reader v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "109554adab3e36ddc3b131d736b8d66b2ac47a29e4b5658d9adb0be0d6c8e294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109554adab3e36ddc3b131d736b8d66b2ac47a29e4b5658d9adb0be0d6c8e294", kill_on_drop: false }`
[INFO] [stdout] 109554adab3e36ddc3b131d736b8d66b2ac47a29e4b5658d9adb0be0d6c8e294