[INFO] fetching crate freqfs 0.5.0...
[INFO] building freqfs-0.5.0 against master#222c5724ecc922fe67815f428c19f82c129d9386 for pr-97334
[INFO] extracting crate freqfs 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate freqfs 0.5.0 on toolchain 222c5724ecc922fe67815f428c19f82c129d9386
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate freqfs 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate freqfs 0.5.0
[INFO] tweaked toml for crates.io crate freqfs 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate freqfs 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safecast v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.36
[INFO] [stderr]   Downloaded libc v0.2.112
[INFO] [stderr]   Downloaded futures-macro v0.3.19
[INFO] [stderr]   Downloaded futures-io v0.3.19
[INFO] [stderr]   Downloaded futures-core v0.3.19
[INFO] [stderr]   Downloaded slab v0.4.5
[INFO] [stderr]   Downloaded futures-executor v0.3.19
[INFO] [stderr]   Downloaded futures-channel v0.3.19
[INFO] [stderr]   Downloaded futures-sink v0.3.19
[INFO] [stderr]   Downloaded futures-task v0.3.19
[INFO] [stderr]   Downloaded futures v0.3.19
[INFO] [stderr]   Downloaded futures-util v0.3.19
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded getrandom v0.2.4
[INFO] [stderr]   Downloaded quote v1.0.14
[INFO] [stderr]   Downloaded tokio v1.15.0
[INFO] [stderr]   Downloaded syn v1.0.85
[INFO] [stderr]   Downloaded freqache v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3187ac5ff68fd239c4ecf2a257ce923fce43faa88c7f017b105a2f91f16369e
[INFO] running `Command { std: "docker" "start" "-a" "a3187ac5ff68fd239c4ecf2a257ce923fce43faa88c7f017b105a2f91f16369e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3187ac5ff68fd239c4ecf2a257ce923fce43faa88c7f017b105a2f91f16369e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3187ac5ff68fd239c4ecf2a257ce923fce43faa88c7f017b105a2f91f16369e", kill_on_drop: false }`
[INFO] [stdout] a3187ac5ff68fd239c4ecf2a257ce923fce43faa88c7f017b105a2f91f16369e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 944b28ed8cafff97399d8a47141cc4c82f25858d0b1c2ff752f68c51b47b1acb
[INFO] running `Command { std: "docker" "start" "-a" "944b28ed8cafff97399d8a47141cc4c82f25858d0b1c2ff752f68c51b47b1acb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling freqache v0.4.1
[INFO] [stderr]    Compiling safecast v0.1.2
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.15.0
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling freqfs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.05s
[INFO] running `Command { std: "docker" "inspect" "944b28ed8cafff97399d8a47141cc4c82f25858d0b1c2ff752f68c51b47b1acb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944b28ed8cafff97399d8a47141cc4c82f25858d0b1c2ff752f68c51b47b1acb", kill_on_drop: false }`
[INFO] [stdout] 944b28ed8cafff97399d8a47141cc4c82f25858d0b1c2ff752f68c51b47b1acb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c79ab76b8d1688ef4b1ad36eb0fcf564248835115e2e22e614268f0a9a4d8cb
[INFO] running `Command { std: "docker" "start" "-a" "2c79ab76b8d1688ef4b1ad36eb0fcf564248835115e2e22e614268f0a9a4d8cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling freqfs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.20s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/freqfs-d97dda3cc78481d8)
[INFO] running `Command { std: "docker" "inspect" "2c79ab76b8d1688ef4b1ad36eb0fcf564248835115e2e22e614268f0a9a4d8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c79ab76b8d1688ef4b1ad36eb0fcf564248835115e2e22e614268f0a9a4d8cb", kill_on_drop: false }`
[INFO] [stdout] 2c79ab76b8d1688ef4b1ad36eb0fcf564248835115e2e22e614268f0a9a4d8cb