[INFO] fetching crate include-merkle 0.1.4...
[INFO] checking include-merkle-0.1.4 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate include-merkle 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate include-merkle 0.1.4 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate include-merkle 0.1.4
[INFO] finished tweaking crates.io crate include-merkle 0.1.4
[INFO] tweaked toml for crates.io crate include-merkle 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b02872457ab03980b8d1e87566c7de3e6ccffdf094d30f47ee4c66534e8bbd2
[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" "4b02872457ab03980b8d1e87566c7de3e6ccffdf094d30f47ee4c66534e8bbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b02872457ab03980b8d1e87566c7de3e6ccffdf094d30f47ee4c66534e8bbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b02872457ab03980b8d1e87566c7de3e6ccffdf094d30f47ee4c66534e8bbd2", kill_on_drop: false }`
[INFO] [stdout] 4b02872457ab03980b8d1e87566c7de3e6ccffdf094d30f47ee4c66534e8bbd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 5fc87d96bb8637f134a2a88e5a3ee2978245afd9f0d751924c4253139373eb9c
[INFO] running `Command { std: "docker" "start" "-a" "5fc87d96bb8637f134a2a88e5a3ee2978245afd9f0d751924c4253139373eb9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking base58 v0.1.0
[INFO] [stderr]     Checking chardet v0.2.4
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking tint v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking ptree v0.2.1
[INFO] [stderr]     Checking include-merkle v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.35s
[INFO] running `Command { std: "docker" "inspect" "5fc87d96bb8637f134a2a88e5a3ee2978245afd9f0d751924c4253139373eb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc87d96bb8637f134a2a88e5a3ee2978245afd9f0d751924c4253139373eb9c", kill_on_drop: false }`
[INFO] [stdout] 5fc87d96bb8637f134a2a88e5a3ee2978245afd9f0d751924c4253139373eb9c