[INFO] fetching crate address-cmp 0.2.1...
[INFO] checking address-cmp-0.2.1 against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] extracting crate address-cmp 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate address-cmp 0.2.1
[INFO] finished tweaking crates.io crate address-cmp 0.2.1
[INFO] tweaked toml for crates.io crate address-cmp 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate address-cmp 0.2.1 on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking address-cmp-0.2.1 against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] extracting crate address-cmp 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate address-cmp 0.2.1
[INFO] finished tweaking crates.io crate address-cmp 0.2.1
[INFO] tweaked toml for crates.io crate address-cmp 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate address-cmp 0.2.1 on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbb45ff3844d64d4757466f581942a5a427a20014b22a30769ad8db1009a23b8
[INFO] running `Command { std: "docker" "start" "-a" "bbb45ff3844d64d4757466f581942a5a427a20014b22a30769ad8db1009a23b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbb45ff3844d64d4757466f581942a5a427a20014b22a30769ad8db1009a23b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb45ff3844d64d4757466f581942a5a427a20014b22a30769ad8db1009a23b8", kill_on_drop: false }`
[INFO] [stdout] bbb45ff3844d64d4757466f581942a5a427a20014b22a30769ad8db1009a23b8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1fd3f9b86554147a1761c14a682998a37251d053b689c4f56011cddfc18ee99
[INFO] running `Command { std: "docker" "start" "-a" "a1fd3f9b86554147a1761c14a682998a37251d053b689c4f56011cddfc18ee99", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]     Checking address-cmp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout]  9 |     struct A {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 10 |         pub a: u8,
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     struct A<'a> {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 22 |         pub a: &'a u8,
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |     struct A {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 45 |         pub a: u8,
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     struct A<'a> {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 58 |         pub a: &'a u8,
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |     struct A {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 84 |         pub a: u8,
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/struct.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |     struct A {
[INFO] [stdout]    |            - field in this struct
[INFO] [stdout] 98 |         pub a: u8,
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> tests/struct.rs:138:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |     struct A {
[INFO] [stdout]     |            - field in this struct
[INFO] [stdout] 138 |         pub a: u8,
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> tests/struct.rs:166:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |     struct A {
[INFO] [stdout]     |            - field in this struct
[INFO] [stdout] 166 |         pub a: u8,
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "a1fd3f9b86554147a1761c14a682998a37251d053b689c4f56011cddfc18ee99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1fd3f9b86554147a1761c14a682998a37251d053b689c4f56011cddfc18ee99", kill_on_drop: false }`
[INFO] [stdout] a1fd3f9b86554147a1761c14a682998a37251d053b689c4f56011cddfc18ee99