[INFO] fetching crate faerie 0.15.0...
[INFO] checking faerie-0.15.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate faerie 0.15.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate faerie 0.15.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate faerie 0.15.0
[INFO] finished tweaking crates.io crate faerie 0.15.0
[INFO] tweaked toml for crates.io crate faerie 0.15.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate faerie 0.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.11
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded proc-macro-error v0.4.11
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded syn-mid v0.5.0
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded goblin v0.1.3
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded serde v1.0.104
[INFO] [stderr]   Downloaded string-interner v0.7.1
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded structopt-derive v0.4.4
[INFO] [stderr]   Downloaded structopt v0.3.11
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded regex-syntax v0.6.16
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded thiserror v1.0.11
[INFO] [stderr]   Downloaded thiserror-impl v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48cbeb4a62b1b66495eb7ef3195d91979f445d8885854930350415ac32f1ad9e
[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" "48cbeb4a62b1b66495eb7ef3195d91979f445d8885854930350415ac32f1ad9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48cbeb4a62b1b66495eb7ef3195d91979f445d8885854930350415ac32f1ad9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48cbeb4a62b1b66495eb7ef3195d91979f445d8885854930350415ac32f1ad9e", kill_on_drop: false }`
[INFO] [stdout] 48cbeb4a62b1b66495eb7ef3195d91979f445d8885854930350415ac32f1ad9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] de6aafefdc9de0971fc5ce5a79bb0290eb224d9f397368c9db3834ef6c5ccd60
[INFO] running `Command { std: "docker" "start" "-a" "de6aafefdc9de0971fc5ce5a79bb0290eb224d9f397368c9db3834ef6c5ccd60", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking goblin v0.1.3
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking faerie v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.66s
[INFO] running `Command { std: "docker" "inspect" "de6aafefdc9de0971fc5ce5a79bb0290eb224d9f397368c9db3834ef6c5ccd60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6aafefdc9de0971fc5ce5a79bb0290eb224d9f397368c9db3834ef6c5ccd60", kill_on_drop: false }`
[INFO] [stdout] de6aafefdc9de0971fc5ce5a79bb0290eb224d9f397368c9db3834ef6c5ccd60