[INFO] fetching crate cpclib-xfer 0.4.4...
[INFO] checking cpclib-xfer-0.4.4 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate cpclib-xfer 0.4.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cpclib-xfer 0.4.4 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-xfer 0.4.4
[INFO] finished tweaking crates.io crate cpclib-xfer 0.4.4
[INFO] tweaked toml for crates.io crate cpclib-xfer 0.4.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] eb3ca5392f94a357f205fa1a78ae0f5630c2e0f1952dc81dcd876cb3116106e9
[INFO] running `Command { std: "docker" "start" "-a" "eb3ca5392f94a357f205fa1a78ae0f5630c2e0f1952dc81dcd876cb3116106e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb3ca5392f94a357f205fa1a78ae0f5630c2e0f1952dc81dcd876cb3116106e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3ca5392f94a357f205fa1a78ae0f5630c2e0f1952dc81dcd876cb3116106e9", kill_on_drop: false }`
[INFO] [stdout] eb3ca5392f94a357f205fa1a78ae0f5630c2e0f1952dc81dcd876cb3116106e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97b76a05b0f544d48167783476ce47d0cd075db1f6f145edd460006ec94477bb
[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" "97b76a05b0f544d48167783476ce47d0cd075db1f6f145edd460006ec94477bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking bitsets v0.1.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling curl v0.4.37
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.43+curl-7.76.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking path-dedot v3.0.12
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking memchr v2.4.0
[INFO] [stderr]     Checking path-absolutize v3.0.10
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking indexmap v1.6.2
[INFO] [stderr]     Checking miniz_oxide v0.4.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking backtrace v0.3.59
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling delegate v0.5.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]    Compiling built v0.4.4
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]    Compiling cpclib-sna v0.4.4
[INFO] [stderr]    Compiling cpclib-tokens v0.4.4
[INFO] [stderr]    Compiling cpclib-disc v0.4.4
[INFO] [stderr]    Compiling cpclib-xfer v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         temp_path.close();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |         temp_path.close();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 56s
[INFO] running `Command { std: "docker" "inspect" "97b76a05b0f544d48167783476ce47d0cd075db1f6f145edd460006ec94477bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b76a05b0f544d48167783476ce47d0cd075db1f6f145edd460006ec94477bb", kill_on_drop: false }`
[INFO] [stdout] 97b76a05b0f544d48167783476ce47d0cd075db1f6f145edd460006ec94477bb