[INFO] cloning repository https://github.com/doy/rbw
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/doy/rbw" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoy%2Frbw", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoy%2Frbw'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b399be81bd198d1f2fca3b166132af7bf93eef86
[INFO] checking doy/rbw against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoy%2Frbw" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/doy/rbw on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/doy/rbw
[INFO] finished tweaking git repo https://github.com/doy/rbw
[INFO] tweaked toml for git repo https://github.com/doy/rbw written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/doy/rbw already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paw-attributes v1.0.2
[INFO] [stderr]   Downloaded snafu v0.6.9
[INFO] [stderr]   Downloaded snafu-derive v0.6.9
[INFO] [stderr]   Downloaded aes v0.5.0
[INFO] [stderr]   Downloaded rustc-hex v1.0.0
[INFO] [stderr]   Downloaded aes-soft v0.5.0
[INFO] [stderr]   Downloaded regex v1.4.0
[INFO] [stderr]   Downloaded aesni v0.8.0
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded generic-array v0.7.3
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.3
[INFO] [stderr]   Downloaded paw-raw v1.0.0
[INFO] [stderr]   Downloaded hmac v0.1.1
[INFO] [stderr]   Downloaded block-cipher v0.8.0
[INFO] [stderr]   Downloaded paw v1.0.0
[INFO] [stderr]   Downloaded block-modes v0.6.1
[INFO] [stderr]   Downloaded chbs v0.0.10
[INFO] [stderr]   Downloaded regex-syntax v0.6.19
[INFO] [stderr]   Downloaded sha-1 v0.3.4
[INFO] [stderr]   Downloaded crypto-mac v0.3.0
[INFO] [stderr]   Downloaded oath v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd608d50a6d8c712245e0bd738058c87bbaa4276b700c929a960a14d446580b
[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" "4fd608d50a6d8c712245e0bd738058c87bbaa4276b700c929a960a14d446580b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd608d50a6d8c712245e0bd738058c87bbaa4276b700c929a960a14d446580b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd608d50a6d8c712245e0bd738058c87bbaa4276b700c929a960a14d446580b", kill_on_drop: false }`
[INFO] [stdout] 4fd608d50a6d8c712245e0bd738058c87bbaa4276b700c929a960a14d446580b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad3941b1a4fc350c0f8755f98d78afaa8e8ef7e1e4a8c9fe935828fcea64e7d6
[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" "ad3941b1a4fc350c0f8755f98d78afaa8e8ef7e1e4a8c9fe935828fcea64e7d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking regex-syntax v0.6.19
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking rustc-hex v1.0.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking generic-array v0.7.3
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking block-cipher v0.8.0
[INFO] [stderr]     Checking digest v0.5.2
[INFO] [stderr]     Checking digest-buffer v0.3.1
[INFO] [stderr]     Checking crypto-mac v0.3.0
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stderr]     Checking block-modes v0.6.1
[INFO] [stderr]     Checking sha-1 v0.3.4
[INFO] [stderr]     Checking sha2 v0.5.3
[INFO] [stderr]     Checking hmac v0.1.1
[INFO] [stderr]     Checking aes v0.5.0
[INFO] [stderr]     Checking oath v0.10.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking nix v0.19.0
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]     Checking regex v1.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking snafu v0.6.9
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking chbs v0.0.10
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_path_to_error v0.1.3
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking rbw v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 29s
[INFO] running `Command { std: "docker" "inspect" "ad3941b1a4fc350c0f8755f98d78afaa8e8ef7e1e4a8c9fe935828fcea64e7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad3941b1a4fc350c0f8755f98d78afaa8e8ef7e1e4a8c9fe935828fcea64e7d6", kill_on_drop: false }`
[INFO] [stdout] ad3941b1a4fc350c0f8755f98d78afaa8e8ef7e1e4a8c9fe935828fcea64e7d6