[INFO] fetching crate twiggy 0.6.0...
[INFO] checking twiggy-0.6.0 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate twiggy 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate twiggy 0.6.0 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twiggy 0.6.0
[INFO] finished tweaking crates.io crate twiggy 0.6.0
[INFO] tweaked toml for crates.io crate twiggy 0.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate twiggy 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9efd67565c4497de0440d5fb8fd6f4465be520d1a613deafed9bc052e35a2f7d
[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" "9efd67565c4497de0440d5fb8fd6f4465be520d1a613deafed9bc052e35a2f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9efd67565c4497de0440d5fb8fd6f4465be520d1a613deafed9bc052e35a2f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9efd67565c4497de0440d5fb8fd6f4465be520d1a613deafed9bc052e35a2f7d", kill_on_drop: false }`
[INFO] [stdout] 9efd67565c4497de0440d5fb8fd6f4465be520d1a613deafed9bc052e35a2f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdb01d1038b0e183d45927583feb8f448b5a76f5440f4e35882419be525e0505
[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" "cdb01d1038b0e183d45927583feb8f448b5a76f5440f4e35882419be525e0505", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking parity-wasm v0.38.0
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking typed-arena v1.4.1
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling cpp_demangle v0.2.12
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking gimli v0.18.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.29
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking bstr v0.2.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking csv v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling twiggy-opt v0.6.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking object v0.12.0
[INFO] [stderr]     Checking twiggy-ir v0.6.0
[INFO] [stderr]     Checking twiggy-traits v0.6.0
[INFO] [stderr]     Checking twiggy-parser v0.6.0
[INFO] [stderr]     Checking twiggy-analyze v0.6.0
[INFO] [stderr]     Checking twiggy v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> twiggy.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 |         for c in Fail::iter_causes(&e) {
[INFO] [stdout]    |                  ^^^^ help: use `dyn`: `<dyn Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> twiggy.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 |         for c in Fail::iter_causes(&e) {
[INFO] [stdout]    |                  ^^^^ help: use `dyn`: `<dyn Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "cdb01d1038b0e183d45927583feb8f448b5a76f5440f4e35882419be525e0505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb01d1038b0e183d45927583feb8f448b5a76f5440f4e35882419be525e0505", kill_on_drop: false }`
[INFO] [stdout] cdb01d1038b0e183d45927583feb8f448b5a76f5440f4e35882419be525e0505