[INFO] fetching crate fselect 0.7.1...
[INFO] checking fselect-0.7.1 against beta for pr-78714
[INFO] extracting crate fselect 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate fselect 0.7.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fselect 0.7.1
[INFO] finished tweaking crates.io crate fselect 0.7.1
[INFO] tweaked toml for crates.io crate fselect 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate fselect 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8335ddaf5823b5bcb9d34c5b6360e9efe81de94553fffd091f0ad4aa882f30e
[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" "b8335ddaf5823b5bcb9d34c5b6360e9efe81de94553fffd091f0ad4aa882f30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8335ddaf5823b5bcb9d34c5b6360e9efe81de94553fffd091f0ad4aa882f30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8335ddaf5823b5bcb9d34c5b6360e9efe81de94553fffd091f0ad4aa882f30e", kill_on_drop: false }`
[INFO] [stdout] b8335ddaf5823b5bcb9d34c5b6360e9efe81de94553fffd091f0ad4aa882f30e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 469e56fa53b7543ff4cabcc7f2480c0801dcdb6bc0d3eecee4d45b7111f5a769
[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" "469e56fa53b7543ff4cabcc7f2480c0801dcdb6bc0d3eecee4d45b7111f5a769", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking scanlex v0.1.2
[INFO] [stderr]     Checking mutate_once v0.1.1
[INFO] [stderr]     Checking bitstream-io v0.8.5
[INFO] [stderr]     Checking imagesize v0.8.8
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking mp3-metadata v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking bitreader v0.3.2
[INFO] [stderr]     Checking lscolors v0.7.1
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking wana_kana v2.0.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking kamadak-exif v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking mp4parse v0.11.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking chrono-english v0.1.4
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking zip v0.5.8
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking matroska v0.5.4
[INFO] [stderr]     Checking fselect v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "469e56fa53b7543ff4cabcc7f2480c0801dcdb6bc0d3eecee4d45b7111f5a769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469e56fa53b7543ff4cabcc7f2480c0801dcdb6bc0d3eecee4d45b7111f5a769", kill_on_drop: false }`
[INFO] [stdout] 469e56fa53b7543ff4cabcc7f2480c0801dcdb6bc0d3eecee4d45b7111f5a769