[INFO] cloning repository https://github.com/jiangzhe/handflip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jiangzhe/handflip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzhe%2Fhandflip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzhe%2Fhandflip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6c655e0475994b2a52c81eed8d1ff6098d2ac16
[INFO] checking jiangzhe/handflip against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzhe%2Fhandflip" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jiangzhe/handflip
[INFO] finished tweaking git repo https://github.com/jiangzhe/handflip
[INFO] tweaked toml for git repo https://github.com/jiangzhe/handflip written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jiangzhe/handflip on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jiangzhe/handflip 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe4f1edb32c174312b6ac1cf0a063413c781dfcb5ce99f0dd0fc5de25049346c
[INFO] running `Command { std: "docker" "start" "-a" "fe4f1edb32c174312b6ac1cf0a063413c781dfcb5ce99f0dd0fc5de25049346c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe4f1edb32c174312b6ac1cf0a063413c781dfcb5ce99f0dd0fc5de25049346c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4f1edb32c174312b6ac1cf0a063413c781dfcb5ce99f0dd0fc5de25049346c", kill_on_drop: false }`
[INFO] [stdout] fe4f1edb32c174312b6ac1cf0a063413c781dfcb5ce99f0dd0fc5de25049346c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 008afb39ee2d23118f5da2428961772ca65b8c8add9e88784f27fa4a918ee825
[INFO] running `Command { std: "docker" "start" "-a" "008afb39ee2d23118f5da2428961772ca65b8c8add9e88784f27fa4a918ee825", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking atomic-waker v1.0.0
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[INFO] [stderr]    Compiling pin-project-internal v0.4.23
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[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling generic-array v0.14.4
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[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking polling v1.0.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
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[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-executor v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking futures-task v0.3.5
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[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling httparse v1.3.4
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[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking infer v0.1.7
[INFO] [stderr]     Checking async-global-executor v1.1.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking async-net v1.4.1
[INFO] [stderr]     Checking byte-pool v0.2.2
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking async-barrier v1.0.1
[INFO] [stderr]     Checking async-rwlock v1.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
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[INFO] [stderr]     Checking thread_local v1.0.1
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[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking block-cipher v0.7.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking aes-soft v0.4.0
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]     Checking async-lock v2.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking hkdf v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking ghash v0.3.0
[INFO] [stderr]     Checking aes v0.4.0
[INFO] [stderr]     Checking aes-gcm v0.6.0
[INFO] [stderr]     Checking smol v1.0.1
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking serde_qs v0.6.1
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking http-types v2.4.0
[INFO] [stderr]     Checking async-h1 v2.1.2
[INFO] [stderr]     Checking handflip-core v0.1.0 (/opt/rustwide/workdir/handflip-core)
[INFO] [stderr]     Checking handflip-bin v0.1.0 (/opt/rustwide/workdir/handflip-bin)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> handflip-bin/src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[structopt(short, long, default_value = "127.0.0.1")]
[INFO] [stdout] 22 | |     pub host: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> handflip-bin/src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[structopt(short, long, help = "specify socks5 proxy address, e.g. 127.0.0.1:1080")]
[INFO] [stdout] 26 | |     pub socks5: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> handflip-bin/src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[structopt(short, long, default_value = "127.0.0.1")]
[INFO] [stdout] 22 | |     pub host: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> handflip-bin/src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[structopt(short, long, help = "specify socks5 proxy address, e.g. 127.0.0.1:1080")]
[INFO] [stdout] 26 | |     pub socks5: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `handflip-bin` (bin "handflip" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `handflip-bin` (bin "handflip") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "008afb39ee2d23118f5da2428961772ca65b8c8add9e88784f27fa4a918ee825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008afb39ee2d23118f5da2428961772ca65b8c8add9e88784f27fa4a918ee825", kill_on_drop: false }`
[INFO] [stdout] 008afb39ee2d23118f5da2428961772ca65b8c8add9e88784f27fa4a918ee825
