[INFO] cloning repository https://github.com/ashfordneil/looker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashfordneil/looker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashfordneil%2Flooker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashfordneil%2Flooker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06b261cb311d8c423be5075480e9831323f4d572
[INFO] checking ashfordneil/looker/06b261cb311d8c423be5075480e9831323f4d572 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashfordneil%2Flooker" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ashfordneil/looker on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ashfordneil/looker
[INFO] finished tweaking git repo https://github.com/ashfordneil/looker
[INFO] tweaked toml for git repo https://github.com/ashfordneil/looker written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ashfordneil/looker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c40eaceda93a84911592c33665e57f6f7321df35fdb93e47e0f2d34412e4a9c9
[INFO] running `Command { std: "docker" "start" "-a" "c40eaceda93a84911592c33665e57f6f7321df35fdb93e47e0f2d34412e4a9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c40eaceda93a84911592c33665e57f6f7321df35fdb93e47e0f2d34412e4a9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40eaceda93a84911592c33665e57f6f7321df35fdb93e47e0f2d34412e4a9c9", kill_on_drop: false }`
[INFO] [stdout] c40eaceda93a84911592c33665e57f6f7321df35fdb93e47e0f2d34412e4a9c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e830760c2437a1079954587b34f6fad7500470ab74b52b4143f1a17ae215f6
[INFO] running `Command { std: "docker" "start" "-a" "e6e830760c2437a1079954587b34f6fad7500470ab74b52b4143f1a17ae215f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.15
[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_jitter v0.1.3
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking fst v0.3.3
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking levenshtein_automata v0.1.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking futures v0.1.26
[INFO] [stderr]     Checking variance v0.1.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking scopeguard v0.1.2
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking fail v0.2.1
[INFO] [stderr]     Checking notify v4.0.10
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking scoped-pool v1.0.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking bitpacking v0.6.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking murmurhash32 v0.2.0
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking crossbeam v0.5.0
[INFO] [stderr]     Checking tantivy-fst v0.1.0
[INFO] [stderr]     Checking census v0.2.0
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking globset v0.4.2
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking ignore v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking atomicwrites v0.2.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling rental-impl v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking rust-stemmers v1.1.0
[INFO] [stderr]     Checking rental v0.5.3
[INFO] [stdout] error: using an old version of `rental`
[INFO] [stdout]   |
[INFO] [stdout]   = note: older versions of the `rental` crate no longer compile; please update to `rental` v0.5.6, or switch to one of the `rental` alternatives
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rental` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e6e830760c2437a1079954587b34f6fad7500470ab74b52b4143f1a17ae215f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e830760c2437a1079954587b34f6fad7500470ab74b52b4143f1a17ae215f6", kill_on_drop: false }`
[INFO] [stdout] e6e830760c2437a1079954587b34f6fad7500470ab74b52b4143f1a17ae215f6