[INFO] cloning repository https://github.com/approvers/aggregate_noobest_rts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/approvers/aggregate_noobest_rts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Faggregate_noobest_rts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Faggregate_noobest_rts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 536240589ba06718a5090d6dcb039bea31feed98
[INFO] checking approvers/aggregate_noobest_rts against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Faggregate_noobest_rts" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/approvers/aggregate_noobest_rts 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 git repo https://github.com/approvers/aggregate_noobest_rts
[INFO] finished tweaking git repo https://github.com/approvers/aggregate_noobest_rts
[INFO] tweaked toml for git repo https://github.com/approvers/aggregate_noobest_rts written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/approvers/aggregate_noobest_rts 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 crypto-mac v0.8.0
[INFO] [stderr]   Downloaded block-buffer v0.8.0
[INFO] [stderr]   Downloaded generic-array v0.14.2
[INFO] [stderr]   Downloaded sha-1 v0.9.0
[INFO] [stderr]   Downloaded derive_more v0.99.8
[INFO] [stderr]   Downloaded hmac v0.8.0
[INFO] [stderr]   Downloaded serde_derive v1.0.113
[INFO] [stderr]   Downloaded serde v1.0.113
[INFO] [stderr]   Downloaded syn v1.0.32
[INFO] [stderr]   Downloaded readonly v0.1.6
[INFO] [stderr]   Downloaded egg-mode v0.15.0
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 409e50d89afe63f1c1c4cc219a024c4d1453ec10eedac416cca327695b21da8a
[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" "409e50d89afe63f1c1c4cc219a024c4d1453ec10eedac416cca327695b21da8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409e50d89afe63f1c1c4cc219a024c4d1453ec10eedac416cca327695b21da8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409e50d89afe63f1c1c4cc219a024c4d1453ec10eedac416cca327695b21da8a", kill_on_drop: false }`
[INFO] [stdout] 409e50d89afe63f1c1c4cc219a024c4d1453ec10eedac416cca327695b21da8a
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9ef4d1d5e488447d722a666404e1d5aaa255e5004d1fa2e5541abacdd1bee60
[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" "e9ef4d1d5e488447d722a666404e1d5aaa255e5004d1fa2e5541abacdd1bee60", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.32
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking os_info v2.0.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking hmac v0.8.0
[INFO] [stderr]     Checking sha-1 v0.9.0
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking rustls-native-certs v0.3.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling derive_more v0.99.8
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling readonly v0.1.6
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking hyper-rustls v0.20.0
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stderr]     Checking bson v1.0.0
[INFO] [stderr]     Checking egg-mode v0.15.0
[INFO] [stderr]     Checking mongodb v1.0.0
[INFO] [stderr]     Checking aggregate_noobest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 58s
[INFO] running `Command { std: "docker" "inspect" "e9ef4d1d5e488447d722a666404e1d5aaa255e5004d1fa2e5541abacdd1bee60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ef4d1d5e488447d722a666404e1d5aaa255e5004d1fa2e5541abacdd1bee60", kill_on_drop: false }`
[INFO] [stdout] e9ef4d1d5e488447d722a666404e1d5aaa255e5004d1fa2e5541abacdd1bee60