[INFO] fetching crate tumbleweed 0.1.0...
[INFO] checking tumbleweed-0.1.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate tumbleweed 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tumbleweed 0.1.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tumbleweed 0.1.0
[INFO] finished tweaking crates.io crate tumbleweed 0.1.0
[INFO] tweaked toml for crates.io crate tumbleweed 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fba5b156d6017a43639cce1798ed051639e8dfee1b33d64d67a0dd5cf362d0b4
[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" "fba5b156d6017a43639cce1798ed051639e8dfee1b33d64d67a0dd5cf362d0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba5b156d6017a43639cce1798ed051639e8dfee1b33d64d67a0dd5cf362d0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba5b156d6017a43639cce1798ed051639e8dfee1b33d64d67a0dd5cf362d0b4", kill_on_drop: false }`
[INFO] [stdout] fba5b156d6017a43639cce1798ed051639e8dfee1b33d64d67a0dd5cf362d0b4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f948b5ce682daece9348b0777f4def7cf1f777b16bde20f2032827f25b1940eb
[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" "f948b5ce682daece9348b0777f4def7cf1f777b16bde20f2032827f25b1940eb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling tumbleweed_derive v0.1.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Checking tumbleweed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "f948b5ce682daece9348b0777f4def7cf1f777b16bde20f2032827f25b1940eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f948b5ce682daece9348b0777f4def7cf1f777b16bde20f2032827f25b1940eb", kill_on_drop: false }`
[INFO] [stdout] f948b5ce682daece9348b0777f4def7cf1f777b16bde20f2032827f25b1940eb