[INFO] fetching crate grcov 0.6.1...
[INFO] checking grcov-0.6.1 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate grcov 0.6.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate grcov 0.6.1 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking crates.io crate grcov 0.6.1
[INFO] finished tweaking crates.io crate grcov 0.6.1
[INFO] tweaked toml for crates.io crate grcov 0.6.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate grcov 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-binutils v0.3.3
[INFO] [stderr]   Downloaded fomat-macros v0.3.1
[INFO] [stderr]   Downloaded tcmalloc v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6c9babb453a5b715db54923c965db94819ca0f4644161cb512429fb62d6fdd5
[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" "b6c9babb453a5b715db54923c965db94819ca0f4644161cb512429fb62d6fdd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6c9babb453a5b715db54923c965db94819ca0f4644161cb512429fb62d6fdd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c9babb453a5b715db54923c965db94819ca0f4644161cb512429fb62d6fdd5", kill_on_drop: false }`
[INFO] [stdout] b6c9babb453a5b715db54923c965db94819ca0f4644161cb512429fb62d6fdd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14656cc10b70b74e9bfdbf10c4749e7c2464a63390e85ddf323c56d4994e9fdd
[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" "14656cc10b70b74e9bfdbf10c4749e7c2464a63390e85ddf323c56d4994e9fdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking fomat-macros v0.3.1
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking is_executable v0.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking semver-parser v0.10.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking zip v0.5.8
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking cargo_metadata v0.11.4
[INFO] [stderr]     Checking cargo-binutils v0.3.3
[INFO] [stderr]     Checking grcov v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "14656cc10b70b74e9bfdbf10c4749e7c2464a63390e85ddf323c56d4994e9fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14656cc10b70b74e9bfdbf10c4749e7c2464a63390e85ddf323c56d4994e9fdd", kill_on_drop: false }`
[INFO] [stdout] 14656cc10b70b74e9bfdbf10c4749e7c2464a63390e85ddf323c56d4994e9fdd