[INFO] cloning repository https://github.com/EthanYDTang/neo-english
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EthanYDTang/neo-english" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYDTang%2Fneo-english", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYDTang%2Fneo-english'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12b9a64b176f1955c6dd92f4633f72588cff50cc
[INFO] checking EthanYDTang/neo-english against master#2e5723137b2b88368d018b262a0a823a1423131b for pr-78935-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEthanYDTang%2Fneo-english" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EthanYDTang/neo-english on toolchain 2e5723137b2b88368d018b262a0a823a1423131b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EthanYDTang/neo-english
[INFO] finished tweaking git repo https://github.com/EthanYDTang/neo-english
[INFO] tweaked toml for git repo https://github.com/EthanYDTang/neo-english written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/EthanYDTang/neo-english already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eed4cf02152079e43f6ee62acefd51a63238fc41f15a8c618bb34131c50bf5c
[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" "2eed4cf02152079e43f6ee62acefd51a63238fc41f15a8c618bb34131c50bf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eed4cf02152079e43f6ee62acefd51a63238fc41f15a8c618bb34131c50bf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eed4cf02152079e43f6ee62acefd51a63238fc41f15a8c618bb34131c50bf5c", kill_on_drop: false }`
[INFO] [stdout] 2eed4cf02152079e43f6ee62acefd51a63238fc41f15a8c618bb34131c50bf5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+2e5723137b2b88368d018b262a0a823a1423131b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c31d63f43b256c2cc8f6ea797d2f2fe242142b03428ca89d2e82961ed97966a
[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" "6c31d63f43b256c2cc8f6ea797d2f2fe242142b03428ca89d2e82961ed97966a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking miniz_oxide v0.2.1
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.13
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking h2 v0.1.18
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking hyper v0.12.27
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking cookie_store v0.5.1
[INFO] [stderr]     Checking reqwest v0.9.15
[INFO] [stderr]     Checking neo-english v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdin().read_line(&mut inp);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdin().read_line(&mut inp);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[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 26s
[INFO] running `Command { std: "docker" "inspect" "6c31d63f43b256c2cc8f6ea797d2f2fe242142b03428ca89d2e82961ed97966a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c31d63f43b256c2cc8f6ea797d2f2fe242142b03428ca89d2e82961ed97966a", kill_on_drop: false }`
[INFO] [stdout] 6c31d63f43b256c2cc8f6ea797d2f2fe242142b03428ca89d2e82961ed97966a