[INFO] fetching crate snare 0.4.3...
[INFO] checking snare-0.4.3 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate snare 0.4.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate snare 0.4.3 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snare 0.4.3
[INFO] finished tweaking crates.io crate snare 0.4.3
[INFO] tweaked toml for crates.io crate snare 0.4.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate snare 0.4.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b178abd7175a99cd9382ad3e442db654df8d1d560266b2decd39068bba702e75
[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" "b178abd7175a99cd9382ad3e442db654df8d1d560266b2decd39068bba702e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b178abd7175a99cd9382ad3e442db654df8d1d560266b2decd39068bba702e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b178abd7175a99cd9382ad3e442db654df8d1d560266b2decd39068bba702e75", kill_on_drop: false }`
[INFO] [stdout] b178abd7175a99cd9382ad3e442db654df8d1d560266b2decd39068bba702e75
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2030834a371df795dd7f3d50cc11afec20979d87ac84aebbae1842fdd660b75
[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" "b2030834a371df795dd7f3d50cc11afec20979d87ac84aebbae1842fdd660b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling cactus v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling vob v2.0.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking secstr v0.4.0
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking nix v0.21.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]    Compiling rerun_except v1.0.0
[INFO] [stderr]    Compiling lrpar v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking hyper v0.14.8
[INFO] [stderr]    Compiling packedvec v1.2.3
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling cfgrammar v0.10.1
[INFO] [stderr]    Compiling sparsevec v0.1.3
[INFO] [stderr]     Checking lrtable v0.10.1
[INFO] [stderr]    Compiling lrlex v0.10.1
[INFO] [stderr]    Compiling snare v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 32s
[INFO] running `Command { std: "docker" "inspect" "b2030834a371df795dd7f3d50cc11afec20979d87ac84aebbae1842fdd660b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2030834a371df795dd7f3d50cc11afec20979d87ac84aebbae1842fdd660b75", kill_on_drop: false }`
[INFO] [stdout] b2030834a371df795dd7f3d50cc11afec20979d87ac84aebbae1842fdd660b75