[INFO] fetching crate chars 0.5.0...
[INFO] checking chars-0.5.0 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate chars 0.5.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate chars 0.5.0 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chars 0.5.0
[INFO] finished tweaking crates.io crate chars 0.5.0
[INFO] tweaked toml for crates.io crate chars 0.5.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate chars 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chars_data v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", 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] 29ad6131eb9feeb5d48a79eb9e6f5ddba9de79f8b5c9977394471b8afea22ce3
[INFO] running `Command { std: "docker" "start" "-a" "29ad6131eb9feeb5d48a79eb9e6f5ddba9de79f8b5c9977394471b8afea22ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29ad6131eb9feeb5d48a79eb9e6f5ddba9de79f8b5c9977394471b8afea22ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ad6131eb9feeb5d48a79eb9e6f5ddba9de79f8b5c9977394471b8afea22ce3", kill_on_drop: false }`
[INFO] [stdout] 29ad6131eb9feeb5d48a79eb9e6f5ddba9de79f8b5c9977394471b8afea22ce3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7f6785f40ea41dc74d3b5526a7ad32a3c09389b853cb131318b83ff7b6e71e1
[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" "e7f6785f40ea41dc74d3b5526a7ad32a3c09389b853cb131318b83ff7b6e71e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fst v0.4.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode_names2 v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.5
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling chars_data v0.5.0
[INFO] [stderr]    Compiling chars v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.92s
[INFO] running `Command { std: "docker" "inspect" "e7f6785f40ea41dc74d3b5526a7ad32a3c09389b853cb131318b83ff7b6e71e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f6785f40ea41dc74d3b5526a7ad32a3c09389b853cb131318b83ff7b6e71e1", kill_on_drop: false }`
[INFO] [stdout] e7f6785f40ea41dc74d3b5526a7ad32a3c09389b853cb131318b83ff7b6e71e1