[INFO] cloning repository https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gagiuntoli/Secp256k1_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagiuntoli%2FSecp256k1_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagiuntoli%2FSecp256k1_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3523f01f529870bcc32e8d151762bc3c896284e0
[INFO] checking gagiuntoli/Secp256k1_Rust against master#f25e92bd42b14e45440c0a30a4ed751ea502f430 for pr-127481
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagiuntoli%2FSecp256k1_Rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gagiuntoli/Secp256k1_Rust on toolchain f25e92bd42b14e45440c0a30a4ed751ea502f430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] finished tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] tweaked toml for git repo https://github.com/gagiuntoli/Secp256k1_Rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gagiuntoli/Secp256k1_Rust 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" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "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 gagiuntoli/Secp256k1_Rust against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagiuntoli%2FSecp256k1_Rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gagiuntoli/Secp256k1_Rust on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] finished tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] tweaked toml for git repo https://github.com/gagiuntoli/Secp256k1_Rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gagiuntoli/Secp256k1_Rust 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" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "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 gagiuntoli/Secp256k1_Rust against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagiuntoli%2FSecp256k1_Rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gagiuntoli/Secp256k1_Rust on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] finished tweaking git repo https://github.com/gagiuntoli/Secp256k1_Rust
[INFO] tweaked toml for git repo https://github.com/gagiuntoli/Secp256k1_Rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gagiuntoli/Secp256k1_Rust 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" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "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 secp256k1 v0.21.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76a0b694f7dc468e571267eca745336e27870b1c0cfa34afdffc000caf724d8f
[INFO] running `Command { std: "docker" "start" "-a" "76a0b694f7dc468e571267eca745336e27870b1c0cfa34afdffc000caf724d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76a0b694f7dc468e571267eca745336e27870b1c0cfa34afdffc000caf724d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a0b694f7dc468e571267eca745336e27870b1c0cfa34afdffc000caf724d8f", kill_on_drop: false }`
[INFO] [stdout] 76a0b694f7dc468e571267eca745336e27870b1c0cfa34afdffc000caf724d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d51ed902842d4528e73250f42c172faf23fe3a72d3c162b28b4c8be7970b586
[INFO] running `Command { std: "docker" "start" "-a" "4d51ed902842d4528e73250f42c172faf23fe3a72d3c162b28b4c8be7970b586", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking secp256k1 v0.21.2
[INFO] [stderr]     Checking Secp256k1_Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Message`, `PublicKey`, `Secp256k1`, and `SecretKey`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use secp256k1::{Secp256k1, Message, SecretKey, PublicKey};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha256`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::Digest`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sha2::Digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALICE` is never used
[INFO] [stdout]  --> src/main.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const ALICE: [u8; 32] = [0x18,0xa8,0x6a,0x6c,0x8a,0x38,0x18,0x28,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOB` is never used
[INFO] [stdout]   --> src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const BOB: [u8; 32]   = [0x19,0xa8,0x6a,0x6c,0x8a,0x38,0x18,0x28,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TxIn` is never constructed
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct TxIn {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TxOut` is never constructed
[INFO] [stdout]   --> src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct TxOut {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tx` is never constructed
[INFO] [stdout]   --> src/main.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Tx {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize` is never used
[INFO] [stdout]   --> src/main.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Tx {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] 33 |     fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_hex_string` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn get_hex_string(bytes: [u8; 32]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         write!(s, "{:02X}", byte);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         write!(s, "{:02X}", byte);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.64s
[INFO] running `Command { std: "docker" "inspect" "4d51ed902842d4528e73250f42c172faf23fe3a72d3c162b28b4c8be7970b586", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d51ed902842d4528e73250f42c172faf23fe3a72d3c162b28b4c8be7970b586", kill_on_drop: false }`
[INFO] [stdout] 4d51ed902842d4528e73250f42c172faf23fe3a72d3c162b28b4c8be7970b586