[INFO] cloning repository https://github.com/rustaceanrob/chacha20
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustaceanrob/chacha20" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustaceanrob%2Fchacha20", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustaceanrob%2Fchacha20'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0f28fe58f6b0bf5f83b63c8415004ecc95427e5
[INFO] checking rustaceanrob/chacha20 against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustaceanrob%2Fchacha20" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rustaceanrob/chacha20
[INFO] finished tweaking git repo https://github.com/rustaceanrob/chacha20
[INFO] tweaked toml for git repo https://github.com/rustaceanrob/chacha20 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rustaceanrob/chacha20 on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rustaceanrob/chacha20 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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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 rustaceanrob/chacha20 against try#0cb362313295507a2f4321c0e30cea0168f2fe71 for pr-138961-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustaceanrob%2Fchacha20" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rustaceanrob/chacha20
[INFO] finished tweaking git repo https://github.com/rustaceanrob/chacha20
[INFO] tweaked toml for git repo https://github.com/rustaceanrob/chacha20 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rustaceanrob/chacha20 on toolchain 0cb362313295507a2f4321c0e30cea0168f2fe71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rustaceanrob/chacha20 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" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82f79b0778bd499d63726e07e1518a368e236d0db3189d7e0a4ed50a4dc9ed99
[INFO] running `Command { std: "docker" "start" "-a" "82f79b0778bd499d63726e07e1518a368e236d0db3189d7e0a4ed50a4dc9ed99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82f79b0778bd499d63726e07e1518a368e236d0db3189d7e0a4ed50a4dc9ed99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82f79b0778bd499d63726e07e1518a368e236d0db3189d7e0a4ed50a4dc9ed99", kill_on_drop: false }`
[INFO] [stdout] 82f79b0778bd499d63726e07e1518a368e236d0db3189d7e0a4ed50a4dc9ed99
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+0cb362313295507a2f4321c0e30cea0168f2fe71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 882ce9dbaa8889c55f525cb0f36ae8b4c65db10aab7565a00564a669b866a45a
[INFO] running `Command { std: "docker" "start" "-a" "882ce9dbaa8889c55f525cb0f36ae8b4c65db10aab7565a00564a669b866a45a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking rust_chacha20 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:80:67
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn apply_keystream<'a>(&'a mut self, to: &'a mut [u8]) -> &[u8] {
[INFO] [stdout]    |                                 --                --              ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                 |                 |
[INFO] [stdout]    |                                 |                 the lifetime is named here
[INFO] [stdout]    |                                 the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn apply_keystream<'a>(&'a mut self, to: &'a mut [u8]) -> &'a [u8] {
[INFO] [stdout]    |                                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:80:67
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn apply_keystream<'a>(&'a mut self, to: &'a mut [u8]) -> &[u8] {
[INFO] [stdout]    |                                 --                --              ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                 |                 |
[INFO] [stdout]    |                                 |                 the lifetime is named here
[INFO] [stdout]    |                                 the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn apply_keystream<'a>(&'a mut self, to: &'a mut [u8]) -> &'a [u8] {
[INFO] [stdout]    |                                                                    ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "882ce9dbaa8889c55f525cb0f36ae8b4c65db10aab7565a00564a669b866a45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882ce9dbaa8889c55f525cb0f36ae8b4c65db10aab7565a00564a669b866a45a", kill_on_drop: false }`
[INFO] [stdout] 882ce9dbaa8889c55f525cb0f36ae8b4c65db10aab7565a00564a669b866a45a