[INFO] cloning repository https://github.com/koralle/file-inout
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koralle/file-inout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de00a74828f296fb722a237ea66120ec09ccaf84
[INFO] checking koralle/file-inout against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/koralle/file-inout
[INFO] finished tweaking git repo https://github.com/koralle/file-inout
[INFO] tweaked toml for git repo https://github.com/koralle/file-inout written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/koralle/file-inout on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/koralle/file-inout 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking koralle/file-inout against try#0f31acebf540c89e4a4d5d114959fe91973419cb for pr-147017
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoralle%2Ffile-inout" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/koralle/file-inout
[INFO] finished tweaking git repo https://github.com/koralle/file-inout
[INFO] tweaked toml for git repo https://github.com/koralle/file-inout written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/koralle/file-inout on toolchain 0f31acebf540c89e4a4d5d114959fe91973419cb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/koralle/file-inout 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" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded speculate v0.1.2
[INFO] [stderr]   Downloaded rstest v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13690d72767b1ee5c508c14b9933aa520711bf2c6f64e96ae0621cd7cdca1c17
[INFO] running `Command { std: "docker" "start" "-a" "13690d72767b1ee5c508c14b9933aa520711bf2c6f64e96ae0621cd7cdca1c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13690d72767b1ee5c508c14b9933aa520711bf2c6f64e96ae0621cd7cdca1c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13690d72767b1ee5c508c14b9933aa520711bf2c6f64e96ae0621cd7cdca1c17", kill_on_drop: false }`
[INFO] [stdout] 13690d72767b1ee5c508c14b9933aa520711bf2c6f64e96ae0621cd7cdca1c17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0f31acebf540c89e4a4d5d114959fe91973419cb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa146542d91355d4b3090ff516dd4d7cf5fa7df4c6a5400df463c59116a1eb1c
[INFO] running `Command { std: "docker" "start" "-a" "fa146542d91355d4b3090ff516dd4d7cf5fa7df4c6a5400df463c59116a1eb1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling rstest v0.12.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling speculate v0.1.2
[INFO] [stderr]     Checking file-inout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/file.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Read`, `Write`, and `self`
[INFO] [stdout]  --> src/file.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^  ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `Write`
[INFO] [stdout]  --> src/main.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |                     ^^^^^^^^^        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/main.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/file.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Read`, `Write`, and `self`
[INFO] [stdout]  --> src/file.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^  ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rstest::*`
[INFO] [stdout]  --> src/file.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rstest::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `speculate::speculate`
[INFO] [stdout]  --> src/file.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use speculate::speculate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OpenOptions`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs::{File, OpenOptions};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `Write`
[INFO] [stdout]  --> src/main.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |                     ^^^^^^^^^        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/main.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, ErrorKind, Read, Write};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "fa146542d91355d4b3090ff516dd4d7cf5fa7df4c6a5400df463c59116a1eb1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa146542d91355d4b3090ff516dd4d7cf5fa7df4c6a5400df463c59116a1eb1c", kill_on_drop: false }`
[INFO] [stdout] fa146542d91355d4b3090ff516dd4d7cf5fa7df4c6a5400df463c59116a1eb1c