[INFO] cloning repository https://github.com/gauravsinha12/Rusty-compressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gauravsinha12/Rusty-compressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravsinha12%2FRusty-compressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravsinha12%2FRusty-compressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc9535851d0630397139682a591482bf0fe10d40
[INFO] checking gauravsinha12/Rusty-compressor against master#dfdbe30004a095ad63951c4cd6e10a9a971a7399 for pr-120932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravsinha12%2FRusty-compressor" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gauravsinha12/Rusty-compressor on toolchain dfdbe30004a095ad63951c4cd6e10a9a971a7399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dfdbe30004a095ad63951c4cd6e10a9a971a7399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] finished tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] tweaked toml for git repo https://github.com/gauravsinha12/Rusty-compressor written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gauravsinha12/Rusty-compressor 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" "+dfdbe30004a095ad63951c4cd6e10a9a971a7399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking gauravsinha12/Rusty-compressor against master#ba824a2e25948a86596ccf7594afe548020e86e6 for pr-120932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravsinha12%2FRusty-compressor" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gauravsinha12/Rusty-compressor on toolchain ba824a2e25948a86596ccf7594afe548020e86e6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] finished tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] tweaked toml for git repo https://github.com/gauravsinha12/Rusty-compressor written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gauravsinha12/Rusty-compressor 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" "+ba824a2e25948a86596ccf7594afe548020e86e6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking gauravsinha12/Rusty-compressor against master#ba824a2e25948a86596ccf7594afe548020e86e6 for pr-120932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravsinha12%2FRusty-compressor" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gauravsinha12/Rusty-compressor on toolchain ba824a2e25948a86596ccf7594afe548020e86e6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] finished tweaking git repo https://github.com/gauravsinha12/Rusty-compressor
[INFO] tweaked toml for git repo https://github.com/gauravsinha12/Rusty-compressor written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gauravsinha12/Rusty-compressor 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" "+ba824a2e25948a86596ccf7594afe548020e86e6" "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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51500e2468e7a5e5952ce7df7ec9d53b1aef13500e4c381d6b21bb5d82ad99f0
[INFO] running `Command { std: "docker" "start" "-a" "51500e2468e7a5e5952ce7df7ec9d53b1aef13500e4c381d6b21bb5d82ad99f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51500e2468e7a5e5952ce7df7ec9d53b1aef13500e4c381d6b21bb5d82ad99f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51500e2468e7a5e5952ce7df7ec9d53b1aef13500e4c381d6b21bb5d82ad99f0", kill_on_drop: false }`
[INFO] [stdout] 51500e2468e7a5e5952ce7df7ec9d53b1aef13500e4c381d6b21bb5d82ad99f0
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ba824a2e25948a86596ccf7594afe548020e86e6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f41320eb908ab3666b6f1b76bfe614445d422fd24b60b056ba93515cdc7a59da
[INFO] running `Command { std: "docker" "start" "-a" "f41320eb908ab3666b6f1b76bfe614445d422fd24b60b056ba93515cdc7a59da", kill_on_drop: false }`
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking crc32fast v1.3.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking rusty-compressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `by_ref` found for struct `BufReader` in the current scope
[INFO] [stdout]   --> src/main.rs:43:45
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let bytes_copied = io::copy(&mut reader.by_ref(), &mut encoder)?;
[INFO] [stdout]    |                                             ^^^^^^ method not found in `BufReader<File>`
[INFO] [stdout]   --> /rustc/ba824a2e25948a86596ccf7594afe548020e86e6/library/std/src/io/mod.rs:1039:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `BufReader<File>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Read;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `by_ref` found for struct `BufReader` in the current scope
[INFO] [stdout]   --> src/main.rs:43:45
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let bytes_copied = io::copy(&mut reader.by_ref(), &mut encoder)?;
[INFO] [stdout]    |                                             ^^^^^^ method not found in `BufReader<File>`
[INFO] [stdout]   --> /rustc/ba824a2e25948a86596ccf7594afe548020e86e6/library/std/src/io/mod.rs:1039:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `BufReader<File>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Read;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, BufReader, Write};
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:7:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{self, BufReader, Write};
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-compressor` (bin "rusty-compressor") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-compressor` (bin "rusty-compressor" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f41320eb908ab3666b6f1b76bfe614445d422fd24b60b056ba93515cdc7a59da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f41320eb908ab3666b6f1b76bfe614445d422fd24b60b056ba93515cdc7a59da", kill_on_drop: false }`
[INFO] [stdout] f41320eb908ab3666b6f1b76bfe614445d422fd24b60b056ba93515cdc7a59da