[INFO] fetching crate img_hash 3.1.1...
[INFO] checking img_hash-3.1.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate img_hash 3.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate img_hash 3.1.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate img_hash 3.1.1
[INFO] finished tweaking crates.io crate img_hash 3.1.1
[INFO] tweaked toml for crates.io crate img_hash 3.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate img_hash 3.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8970871a25a31eb145802ac2f9af9e2a74805805b501a7343e85dfb010778a10
[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" "8970871a25a31eb145802ac2f9af9e2a74805805b501a7343e85dfb010778a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8970871a25a31eb145802ac2f9af9e2a74805805b501a7343e85dfb010778a10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8970871a25a31eb145802ac2f9af9e2a74805805b501a7343e85dfb010778a10", kill_on_drop: false }`
[INFO] [stdout] 8970871a25a31eb145802ac2f9af9e2a74805805b501a7343e85dfb010778a10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46e6d4c351c5cd9e8a306c5766f080ba85c07a07831c57f9284b2a67bdcb37bb
[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" "46e6d4c351c5cd9e8a306c5766f080ba85c07a07831c57f9284b2a67bdcb37bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking transpose v0.1.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rustfft v3.0.1
[INFO] [stderr]     Checking transpose v0.2.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]     Checking rustdct v0.4.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.7
[INFO] [stderr]     Checking img_hash v3.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.55s
[INFO] running `Command { std: "docker" "inspect" "46e6d4c351c5cd9e8a306c5766f080ba85c07a07831c57f9284b2a67bdcb37bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e6d4c351c5cd9e8a306c5766f080ba85c07a07831c57f9284b2a67bdcb37bb", kill_on_drop: false }`
[INFO] [stdout] 46e6d4c351c5cd9e8a306c5766f080ba85c07a07831c57f9284b2a67bdcb37bb