[INFO] cloning repository https://github.com/jusw85/mozlz4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jusw85/mozlz4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusw85%2Fmozlz4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusw85%2Fmozlz4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24b8ffa3df42e4f6ed2efc1040091aec7bfbe689
[INFO] checking jusw85/mozlz4 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjusw85%2Fmozlz4" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jusw85/mozlz4 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jusw85/mozlz4
[INFO] finished tweaking git repo https://github.com/jusw85/mozlz4
[INFO] tweaked toml for git repo https://github.com/jusw85/mozlz4 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/jusw85/mozlz4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26a7537dfa88520b7e8a2f08c25089662abda2d99feaaf5fe207c23cdc0fe01d
[INFO] running `Command { std: "docker" "start" "-a" "26a7537dfa88520b7e8a2f08c25089662abda2d99feaaf5fe207c23cdc0fe01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26a7537dfa88520b7e8a2f08c25089662abda2d99feaaf5fe207c23cdc0fe01d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a7537dfa88520b7e8a2f08c25089662abda2d99feaaf5fe207c23cdc0fe01d", kill_on_drop: false }`
[INFO] [stdout] 26a7537dfa88520b7e8a2f08c25089662abda2d99feaaf5fe207c23cdc0fe01d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a117b2d6a4a4b0cc5a9f1931880549965fd7cf556aadcb1454ea1da424b7816d
[INFO] running `Command { std: "docker" "start" "-a" "a117b2d6a4a4b0cc5a9f1931880549965fd7cf556aadcb1454ea1da424b7816d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling mozlz4-sys v0.1.0 (/opt/rustwide/workdir/mozlz4-sys)
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking mozlz4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut ofile: Box<Write> = if ofilename == "-" {
[INFO] [stdout]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:92:46
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn read_to_buffer(ifilename: &str) -> Result<(Vec<u8>)> {
[INFO] [stdout]    |                                              ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 - fn read_to_buffer(ifilename: &str) -> Result<(Vec<u8>)> {
[INFO] [stdout] 92 + fn read_to_buffer(ifilename: &str) -> Result<Vec<u8>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:93:24
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut ifile: Box<Read> = if ifilename == "-" {
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:107:43
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn decompress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout]     |                                           ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 - fn decompress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout] 107 + fn decompress(ibuffer: Vec<u8>) -> Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn compress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout]     |                                         ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 - fn compress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout] 136 + fn compress(ibuffer: Vec<u8>) -> Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     Ok((obuffer))
[INFO] [stdout]     |        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -     Ok((obuffer))
[INFO] [stdout] 159 +     Ok(obuffer)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut ofile: Box<Write> = if ofilename == "-" {
[INFO] [stdout]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:92:46
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn read_to_buffer(ifilename: &str) -> Result<(Vec<u8>)> {
[INFO] [stdout]    |                                              ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 - fn read_to_buffer(ifilename: &str) -> Result<(Vec<u8>)> {
[INFO] [stdout] 92 + fn read_to_buffer(ifilename: &str) -> Result<Vec<u8>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:93:24
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut ifile: Box<Read> = if ifilename == "-" {
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:107:43
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn decompress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout]     |                                           ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 - fn decompress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout] 107 + fn decompress(ibuffer: Vec<u8>) -> Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn compress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout]     |                                         ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 - fn compress(ibuffer: Vec<u8>) -> Result<(Vec<u8>)> {
[INFO] [stdout] 136 + fn compress(ibuffer: Vec<u8>) -> Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/main.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     Ok((obuffer))
[INFO] [stdout]     |        ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -     Ok((obuffer))
[INFO] [stdout] 159 +     Ok(obuffer)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.65s
[INFO] running `Command { std: "docker" "inspect" "a117b2d6a4a4b0cc5a9f1931880549965fd7cf556aadcb1454ea1da424b7816d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a117b2d6a4a4b0cc5a9f1931880549965fd7cf556aadcb1454ea1da424b7816d", kill_on_drop: false }`
[INFO] [stdout] a117b2d6a4a4b0cc5a9f1931880549965fd7cf556aadcb1454ea1da424b7816d