[INFO] cloning repository https://github.com/japaric/particle-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/japaric/particle-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaparic%2Fparticle-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaparic%2Fparticle-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fe4834581696ae8c07925bd32ef2360ab051aa0
[INFO] checking japaric/particle-tools against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaparic%2Fparticle-tools" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/japaric/particle-tools on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/japaric/particle-tools
[INFO] finished tweaking git repo https://github.com/japaric/particle-tools
[INFO] tweaked toml for git repo https://github.com/japaric/particle-tools written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/japaric/particle-tools already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5123f366a72608a6407bd353e38dd64faf64beff81f100a5a9ab3797180e383
[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" "f5123f366a72608a6407bd353e38dd64faf64beff81f100a5a9ab3797180e383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5123f366a72608a6407bd353e38dd64faf64beff81f100a5a9ab3797180e383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5123f366a72608a6407bd353e38dd64faf64beff81f100a5a9ab3797180e383", kill_on_drop: false }`
[INFO] [stdout] f5123f366a72608a6407bd353e38dd64faf64beff81f100a5a9ab3797180e383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d0060171da418d32b4de33b0c940c5818d6e794588047d49bcf7d352c91a2d
[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" "83d0060171da418d32b4de33b0c940c5818d6e794588047d49bcf7d352c91a2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.5.2
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking byte-tools v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking crc v1.4.0
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking nodrop v0.1.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]     Checking generic-array v0.7.2
[INFO] [stderr]     Checking digest-buffer v0.3.1
[INFO] [stderr]     Checking digest v0.5.2
[INFO] [stderr]     Checking sha2 v0.5.2
[INFO] [stderr]     Checking backtrace v0.3.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking particle-tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]   --> src/bin/elf2bin.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{Read, Write};
[INFO] [stdout]    |                     ----- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 |         use std::io::Write;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]   --> src/bin/elf2bin.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{Read, Write};
[INFO] [stdout]    |                     ----- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 |         use std::io::Write;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` 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 15.77s
[INFO] running `Command { std: "docker" "inspect" "83d0060171da418d32b4de33b0c940c5818d6e794588047d49bcf7d352c91a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d0060171da418d32b4de33b0c940c5818d6e794588047d49bcf7d352c91a2d", kill_on_drop: false }`
[INFO] [stdout] 83d0060171da418d32b4de33b0c940c5818d6e794588047d49bcf7d352c91a2d