[INFO] fetching crate utf8-io 0.3.1...
[INFO] checking utf8-io-0.3.1 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate utf8-io 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate utf8-io 0.3.1 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-io 0.3.1
[INFO] finished tweaking crates.io crate utf8-io 0.3.1
[INFO] tweaked toml for crates.io crate utf8-io 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate utf8-io 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_codegen v0.8.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
[INFO] [stderr]   Downloaded scoped-tls v1.0.0
[INFO] [stderr]   Downloaded rustversion v1.0.4
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded loom v0.4.0
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded pest v2.1.3
[INFO] [stderr]   Downloaded semver-parser v0.10.2
[INFO] [stderr]   Downloaded phf v0.8.0
[INFO] [stderr]   Downloaded ucd-trie v0.1.3
[INFO] [stderr]   Downloaded semver v0.11.0
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.2
[INFO] [stderr]   Downloaded duplex v0.2.0
[INFO] [stderr]   Downloaded generator v0.6.24
[INFO] [stderr]   Downloaded base64 v0.13.0
[INFO] [stderr]   Downloaded posish v0.5.13
[INFO] [stderr]   Downloaded siphasher v0.3.3
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded unsafe-io v0.5.2
[INFO] [stderr]   Downloaded terminal-io v0.2.1
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded phf_generator v0.8.0
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded layered-io v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62bc05c11aaabd185f389b104a062277f77d69ad866f56b9438bb4f2b7272565
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "62bc05c11aaabd185f389b104a062277f77d69ad866f56b9438bb4f2b7272565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62bc05c11aaabd185f389b104a062277f77d69ad866f56b9438bb4f2b7272565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62bc05c11aaabd185f389b104a062277f77d69ad866f56b9438bb4f2b7272565", kill_on_drop: false }`
[INFO] [stdout] 62bc05c11aaabd185f389b104a062277f77d69ad866f56b9438bb4f2b7272565
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dab40ef664c80e515529161ae1601fc5ca0aca62fdef67984fa447c6b1d05be4
[INFO] running `Command { std: "docker" "start" "-a" "dab40ef664c80e515529161ae1601fc5ca0aca62fdef67984fa447c6b1d05be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking duplex v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.5.2
[INFO] [stderr]    Compiling layered-io v0.3.1
[INFO] [stderr]     Checking utf8-io v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `Command { std: "docker" "inspect" "dab40ef664c80e515529161ae1601fc5ca0aca62fdef67984fa447c6b1d05be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab40ef664c80e515529161ae1601fc5ca0aca62fdef67984fa447c6b1d05be4", kill_on_drop: false }`
[INFO] [stdout] dab40ef664c80e515529161ae1601fc5ca0aca62fdef67984fa447c6b1d05be4