[INFO] cloning repository https://github.com/dibericky/rust-pngme [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dibericky/rust-pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdibericky%2Frust-pngme", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdibericky%2Frust-pngme'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fd72d61d422e0a6ad1cc9a951a29ff8e21eeec75 [INFO] checking dibericky/rust-pngme against master#65cd843ae06ad00123c131a431ed5304e4cd577a for pr-122077 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdibericky%2Frust-pngme" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dibericky/rust-pngme on toolchain 65cd843ae06ad00123c131a431ed5304e4cd577a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+65cd843ae06ad00123c131a431ed5304e4cd577a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dibericky/rust-pngme [INFO] finished tweaking git repo https://github.com/dibericky/rust-pngme [INFO] tweaked toml for git repo https://github.com/dibericky/rust-pngme written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dibericky/rust-pngme 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" "+65cd843ae06ad00123c131a431ed5304e4cd577a" "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 dibericky/rust-pngme against try#e34498b580c936a8f8a419616d9571f03b6c038e for pr-122077 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdibericky%2Frust-pngme" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dibericky/rust-pngme on toolchain e34498b580c936a8f8a419616d9571f03b6c038e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e34498b580c936a8f8a419616d9571f03b6c038e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dibericky/rust-pngme [INFO] finished tweaking git repo https://github.com/dibericky/rust-pngme [INFO] tweaked toml for git repo https://github.com/dibericky/rust-pngme written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dibericky/rust-pngme 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" "+e34498b580c936a8f8a419616d9571f03b6c038e" "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 dibericky/rust-pngme against try#e34498b580c936a8f8a419616d9571f03b6c038e for pr-122077 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdibericky%2Frust-pngme" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dibericky/rust-pngme on toolchain e34498b580c936a8f8a419616d9571f03b6c038e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e34498b580c936a8f8a419616d9571f03b6c038e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dibericky/rust-pngme [INFO] finished tweaking git repo https://github.com/dibericky/rust-pngme [INFO] tweaked toml for git repo https://github.com/dibericky/rust-pngme written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dibericky/rust-pngme 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" "+e34498b580c936a8f8a419616d9571f03b6c038e" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+e34498b580c936a8f8a419616d9571f03b6c038e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 085d49b468d28d3cbf3501cb3a6796c414619863f029eab1981264a3bf0965cb [INFO] running `Command { std: "docker" "start" "-a" "085d49b468d28d3cbf3501cb3a6796c414619863f029eab1981264a3bf0965cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "085d49b468d28d3cbf3501cb3a6796c414619863f029eab1981264a3bf0965cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "085d49b468d28d3cbf3501cb3a6796c414619863f029eab1981264a3bf0965cb", kill_on_drop: false }` [INFO] [stdout] 085d49b468d28d3cbf3501cb3a6796c414619863f029eab1981264a3bf0965cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+e34498b580c936a8f8a419616d9571f03b6c038e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 902e87e1df068309a0439854d074e9825c0cf2f64a39f501d3f66e2539ca3dc5 [INFO] running `Command { std: "docker" "start" "-a" "902e87e1df068309a0439854d074e9825c0cf2f64a39f501d3f66e2539ca3dc5", kill_on_drop: false }` [INFO] [stderr] Compiling build_const v0.2.2 [INFO] [stderr] Compiling anyhow v1.0.56 [INFO] [stderr] Compiling crc v1.8.1 [INFO] [stderr] Checking pngme v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `ChunkType` is imported redundantly [INFO] [stdout] --> src/chunk.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 112 | use super::*; [INFO] [stdout] | -------- the item `ChunkType` is already imported here [INFO] [stdout] 113 | use crate::chunk_type::ChunkType; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/chunk_type.rs:99:9 [INFO] [stdout] | [INFO] [stdout] 99 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/e34498b580c936a8f8a419616d9571f03b6c038e/library/std/src/prelude/mod.rs:129:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromStr` is imported redundantly [INFO] [stdout] --> src/chunk_type.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 98 | use super::*; [INFO] [stdout] | -------- the item `FromStr` is already imported here [INFO] [stdout] 99 | use std::convert::TryFrom; [INFO] [stdout] 100 | use std::str::FromStr; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chunk_type_vec` [INFO] [stdout] --> src/chunk.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let chunk_type_vec = chunk_type [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chunk_type_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chunk_type_vec` [INFO] [stdout] --> src/chunk.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let chunk_type_vec = chunk_type [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_chunk_type_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `chunk_type` is never read [INFO] [stdout] --> src/chunk.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Chunk { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 10 | chunk_type: ChunkType, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `chunk_type`, `data`, and `as_bytes` are never used [INFO] [stdout] --> src/chunk.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Chunk { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn chunk_type(&self) -> &ChunkType { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn data(&self) -> &[u8] { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | pub fn as_bytes(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fifth_bit_is_zero` is never used [INFO] [stdout] --> src/chunk_type.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn fifth_bit_is_zero (byte: &u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_valid`, `is_critical`, `is_public`, `is_reserved_bit_valid`, and `is_safe_to_copy` are never used [INFO] [stdout] --> src/chunk_type.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl ChunkType { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn is_valid(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn is_critical(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn is_public(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn is_reserved_bit_valid(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn is_safe_to_copy(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `data` and `as_bytes` are never used [INFO] [stdout] --> src/chunk.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Chunk { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn data(&self) -> &[u8] { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | pub fn as_bytes(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "902e87e1df068309a0439854d074e9825c0cf2f64a39f501d3f66e2539ca3dc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "902e87e1df068309a0439854d074e9825c0cf2f64a39f501d3f66e2539ca3dc5", kill_on_drop: false }` [INFO] [stdout] 902e87e1df068309a0439854d074e9825c0cf2f64a39f501d3f66e2539ca3dc5