[INFO] cloning repository https://github.com/tcsc/larq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tcsc/larq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Flarq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Flarq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80363e9c8dba6a649055ff2b1e7271666450a3b3
[INFO] checking tcsc/larq against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Flarq" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcsc/larq on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tcsc/larq
[INFO] finished tweaking git repo https://github.com/tcsc/larq
[INFO] tweaked toml for git repo https://github.com/tcsc/larq written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tcsc/larq already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5217e893afe5d367ebc258a76999593aa4f10cc1f504c446875f6565f6b3ddb6
[INFO] running `Command { std: "docker" "start" "-a" "5217e893afe5d367ebc258a76999593aa4f10cc1f504c446875f6565f6b3ddb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5217e893afe5d367ebc258a76999593aa4f10cc1f504c446875f6565f6b3ddb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5217e893afe5d367ebc258a76999593aa4f10cc1f504c446875f6565f6b3ddb6", kill_on_drop: false }`
[INFO] [stdout] 5217e893afe5d367ebc258a76999593aa4f10cc1f504c446875f6565f6b3ddb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e39c8c20d903be5b22f1fd5de707e3c5b6cbd1bb8e5e782367d40f5ba58de938
[INFO] running `Command { std: "docker" "start" "-a" "e39c8c20d903be5b22f1fd5de707e3c5b6cbd1bb8e5e782367d40f5ba58de938", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling async-trait v0.1.47
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking lexical-core v0.7.5
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rusoto_core v0.46.0
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking openssl-sys v0.9.60
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking openssl v0.10.32
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking nom v6.1.2
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking arq-crypto v0.1.0 (/opt/rustwide/workdir/lib/arq-crypto)
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling trait-async v0.1.24
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking arq-storage v0.1.0 (/opt/rustwide/workdir/lib/arq-storage)
[INFO] [stderr]     Checking gumdrop v0.8.0
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking throttled v0.1.0 (/opt/rustwide/workdir/lib/throttled)
[INFO] [stderr]     Checking serde v1.0.124
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking plist v1.1.0
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]     Checking rusoto_credential v0.46.0
[INFO] [stderr]     Checking rusoto_signature v0.46.0
[INFO] [stderr]     Checking rusoto_s3 v0.46.0
[INFO] [stderr]     Checking arq-s3 v0.1.0 (/opt/rustwide/workdir/lib/arq-s3)
[INFO] [stderr]     Checking arq v0.1.0 (/opt/rustwide/workdir/lib/arq)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> lib/arq/src/commit/mod.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> lib/arq/src/commit/mod.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `store`
[INFO] [stdout]   --> lib/arq/src/commit/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     store: Arc<dyn Store>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking larq v0.1.0 (/opt/rustwide/workdir/bin/larq)
[INFO] [stdout] warning: field is never read: `store`
[INFO] [stdout]   --> lib/arq/src/commit/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     store: Arc<dyn Store>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.38s
[INFO] running `Command { std: "docker" "inspect" "e39c8c20d903be5b22f1fd5de707e3c5b6cbd1bb8e5e782367d40f5ba58de938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39c8c20d903be5b22f1fd5de707e3c5b6cbd1bb8e5e782367d40f5ba58de938", kill_on_drop: false }`
[INFO] [stdout] e39c8c20d903be5b22f1fd5de707e3c5b6cbd1bb8e5e782367d40f5ba58de938