[INFO] fetching crate chicon 0.1.3...
[INFO] checking chicon-0.1.3 against beta for pr-78714
[INFO] extracting crate chicon 0.1.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate chicon 0.1.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chicon 0.1.3
[INFO] finished tweaking crates.io crate chicon 0.1.3
[INFO] tweaked toml for crates.io crate chicon 0.1.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c00319bd659d2d394a5b943752f9cc4e65edfc46ac5251d58ed22f5531060b0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6c00319bd659d2d394a5b943752f9cc4e65edfc46ac5251d58ed22f5531060b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c00319bd659d2d394a5b943752f9cc4e65edfc46ac5251d58ed22f5531060b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c00319bd659d2d394a5b943752f9cc4e65edfc46ac5251d58ed22f5531060b0", kill_on_drop: false }`
[INFO] [stdout] 6c00319bd659d2d394a5b943752f9cc4e65edfc46ac5251d58ed22f5531060b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acc5544fa04e97b807a098371e1613cacc578cdd17de01ccb3c653c524065534
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "acc5544fa04e97b807a098371e1613cacc578cdd17de01ccb3c653c524065534", kill_on_drop: false }`
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling rusoto_core v0.39.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking native-tls v0.2.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-signal v0.2.9
[INFO] [stderr]     Checking osproto v0.1.2
[INFO] [stderr]     Checking tokio-process v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking ssh2 v0.3.3
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking rusoto_credential v0.39.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking osauth v0.2.5
[INFO] [stderr]     Checking rusoto_s3 v0.39.0
[INFO] [stderr]     Checking chicon v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem.rs:328:13
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let mut cloned_content: Vec<u8>;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem.rs:328:13
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let mut cloned_content: Vec<u8>;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.15s
[INFO] running `Command { std: "docker" "inspect" "acc5544fa04e97b807a098371e1613cacc578cdd17de01ccb3c653c524065534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc5544fa04e97b807a098371e1613cacc578cdd17de01ccb3c653c524065534", kill_on_drop: false }`
[INFO] [stdout] acc5544fa04e97b807a098371e1613cacc578cdd17de01ccb3c653c524065534