[INFO] fetching crate cpclib-xfer 0.4.4...
[INFO] checking cpclib-xfer-0.4.4 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate cpclib-xfer 0.4.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate cpclib-xfer 0.4.4 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", 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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd8461810d0b7c7bf1c3fce0612ece91882dc53046e4e2716f1faff78a7e6bdb
[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" "dd8461810d0b7c7bf1c3fce0612ece91882dc53046e4e2716f1faff78a7e6bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd8461810d0b7c7bf1c3fce0612ece91882dc53046e4e2716f1faff78a7e6bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8461810d0b7c7bf1c3fce0612ece91882dc53046e4e2716f1faff78a7e6bdb", kill_on_drop: false }`
[INFO] [stdout] dd8461810d0b7c7bf1c3fce0612ece91882dc53046e4e2716f1faff78a7e6bdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ee7c266b5717bc962df000f11b9c47bf97dd52571d8f9239880949165c176da
[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" "6ee7c266b5717bc962df000f11b9c47bf97dd52571d8f9239880949165c176da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling openssl v0.10.31
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking bitsets v0.1.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking custom_error v1.8.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.59
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling curl-sys v0.4.39+curl-7.74.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking path-dedot v3.0.7
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking path-absolutize v3.0.6
[INFO] [stderr]     Checking miniz_oxide v0.4.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking socket2 v0.3.17
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking http-body v0.3.1
[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 pin-project-internal v0.4.27
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling delegate v0.5.0
[INFO] [stderr]    Compiling remain v0.2.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking hyper v0.13.9
[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]    Compiling built v0.4.4
[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] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.9
[INFO] [stdout] warning: unused `std::result::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 `std::result::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 3m 20s
[INFO] running `Command { std: "docker" "inspect" "6ee7c266b5717bc962df000f11b9c47bf97dd52571d8f9239880949165c176da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee7c266b5717bc962df000f11b9c47bf97dd52571d8f9239880949165c176da", kill_on_drop: false }`
[INFO] [stdout] 6ee7c266b5717bc962df000f11b9c47bf97dd52571d8f9239880949165c176da