[INFO] fetching crate jsonwebkey 0.2.0... [INFO] checking jsonwebkey-0.2.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470 [INFO] extracting crate jsonwebkey 0.2.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate jsonwebkey 0.2.0 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 jsonwebkey 0.2.0 [INFO] finished tweaking crates.io crate jsonwebkey 0.2.0 [INFO] tweaked toml for crates.io crate jsonwebkey 0.2.0 written to /workspace/builds/worker-4/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded elliptic-curve v0.4.0 [INFO] [stderr] Downloaded p256 v0.3.0 [INFO] [stderr] Downloaded yasna v0.3.2 [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" "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] cf75d3fa8fac6329624c884a49ed6f9a4d3b0107f66428ddb2d5f57dec5991af [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" "cf75d3fa8fac6329624c884a49ed6f9a4d3b0107f66428ddb2d5f57dec5991af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf75d3fa8fac6329624c884a49ed6f9a4d3b0107f66428ddb2d5f57dec5991af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf75d3fa8fac6329624c884a49ed6f9a4d3b0107f66428ddb2d5f57dec5991af", kill_on_drop: false }` [INFO] [stdout] cf75d3fa8fac6329624c884a49ed6f9a4d3b0107f66428ddb2d5f57dec5991af [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" "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] 1f668cecab5f3009f87eb657b76ce8a126ff28af37c293d3a98a87b6cf6a34c6 [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" "1f668cecab5f3009f87eb657b76ce8a126ff28af37c293d3a98a87b6cf6a34c6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Compiling cc v1.0.66 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking base64 v0.12.3 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking untrusted v0.7.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Compiling ring v0.16.19 [INFO] [stderr] Checking pem v0.8.2 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking simple_asn1 v0.4.1 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling zeroize_derive v1.0.1 [INFO] [stderr] Compiling thiserror-impl v1.0.22 [INFO] [stderr] Compiling derive_more v0.99.11 [INFO] [stderr] Checking zeroize v1.2.0 [INFO] [stderr] Checking thiserror v1.0.22 [INFO] [stderr] Checking jsonwebtoken v7.2.0 [INFO] [stderr] Checking jsonwebkey v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:20:51 [INFO] [stdout] | [INFO] [stdout] 20 | write!(f, "{}", base64::encode(self.0.as_slice())) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:29:16 [INFO] [stdout] | [INFO] [stdout] 29 | self.0.as_slice() == other.0.as_slice() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:29:38 [INFO] [stdout] | [INFO] [stdout] 29 | self.0.as_slice() == other.0.as_slice() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:50:33 [INFO] [stdout] | [INFO] [stdout] 50 | serialize_base64(self.0.as_slice(), s) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:20:51 [INFO] [stdout] | [INFO] [stdout] 20 | write!(f, "{}", base64::encode(self.0.as_slice())) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:29:16 [INFO] [stdout] | [INFO] [stdout] 29 | self.0.as_slice() == other.0.as_slice() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:29:38 [INFO] [stdout] | [INFO] [stdout] 29 | self.0.as_slice() == other.0.as_slice() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/byte_array.rs:50:33 [INFO] [stdout] | [INFO] [stdout] 50 | serialize_base64(self.0.as_slice(), s) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `as_slice(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(array_methods)]` to the crate attributes to enable `array::::as_slice` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 10s [INFO] running `Command { std: "docker" "inspect" "1f668cecab5f3009f87eb657b76ce8a126ff28af37c293d3a98a87b6cf6a34c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f668cecab5f3009f87eb657b76ce8a126ff28af37c293d3a98a87b6cf6a34c6", kill_on_drop: false }` [INFO] [stdout] 1f668cecab5f3009f87eb657b76ce8a126ff28af37c293d3a98a87b6cf6a34c6