[INFO] fetching crate nop-json 2.0.5... [INFO] testing nop-json-2.0.5 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate nop-json 2.0.5 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate nop-json 2.0.5 [INFO] finished tweaking crates.io crate nop-json 2.0.5 [INFO] tweaked toml for crates.io crate nop-json 2.0.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate nop-json 2.0.5 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 7 packages to latest compatible versions [INFO] [stderr] Adding numtoa v0.2.4 (available: v0.3.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded numtoa v0.2.4 [INFO] [stderr] Downloaded read_iter v0.1.2 [INFO] [stderr] Downloaded nop-json-derive v2.0.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 26da006832a94663e753f0d2e7510271718e7582ce9332e8a1579f7ae2a9e844 [INFO] running `Command { std: "docker" "start" "-a" "26da006832a94663e753f0d2e7510271718e7582ce9332e8a1579f7ae2a9e844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "26da006832a94663e753f0d2e7510271718e7582ce9332e8a1579f7ae2a9e844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26da006832a94663e753f0d2e7510271718e7582ce9332e8a1579f7ae2a9e844", kill_on_drop: false }` [INFO] [stdout] 26da006832a94663e753f0d2e7510271718e7582ce9332e8a1579f7ae2a9e844 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 4b2d61aa92a880480dad8a25939760b2ea2cf58965b2223ce647b821b37c01ee [INFO] running `Command { std: "docker" "start" "-a" "4b2d61aa92a880480dad8a25939760b2ea2cf58965b2223ce647b821b37c01ee", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling numtoa v0.2.4 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling nop-json-derive v2.0.5 [INFO] [stderr] Compiling nop-json v2.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: private item shadows public glob re-export [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the name `DebugToJson` in the macro namespace is supposed to be publicly re-exported here [INFO] [stdout] --> src/write_to_json.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub use nop_json_derive::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: but the private item here shadows it [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(hidden_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1169:4 [INFO] [stdout] | [INFO] [stdout] 1169 | &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1169 | let _ = &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1184:4 [INFO] [stdout] | [INFO] [stdout] 1184 | &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1184 | let _ = &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1200:4 [INFO] [stdout] | [INFO] [stdout] 1200 | &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1200 | let _ = &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2035:6 [INFO] [stdout] | [INFO] [stdout] 2035 | { &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2035 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2039:6 [INFO] [stdout] | [INFO] [stdout] 2039 | { &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2039 | { let _ = &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2043:6 [INFO] [stdout] | [INFO] [stdout] 2043 | { &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2043 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/debug_to_json.rs:176:5 [INFO] [stdout] | [INFO] [stdout] 176 | &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 176 | let _ = &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:17:18 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow [INFO] [stdout] | ^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow<'_, str> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:28:28 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<[u8]> [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<'_, [u8]> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.61s [INFO] running `Command { std: "docker" "inspect" "4b2d61aa92a880480dad8a25939760b2ea2cf58965b2223ce647b821b37c01ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b2d61aa92a880480dad8a25939760b2ea2cf58965b2223ce647b821b37c01ee", kill_on_drop: false }` [INFO] [stdout] 4b2d61aa92a880480dad8a25939760b2ea2cf58965b2223ce647b821b37c01ee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 0501a931cc74f29779e7b8e258283bf3d4931c9e58ef5790715fe9617e4651c8 [INFO] running `Command { std: "docker" "start" "-a" "0501a931cc74f29779e7b8e258283bf3d4931c9e58ef5790715fe9617e4651c8", kill_on_drop: false }` [INFO] [stderr] Compiling read_iter v0.1.2 [INFO] [stdout] warning: private item shadows public glob re-export [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the name `DebugToJson` in the macro namespace is supposed to be publicly re-exported here [INFO] [stdout] --> src/write_to_json.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub use nop_json_derive::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: but the private item here shadows it [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(hidden_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1169:4 [INFO] [stdout] | [INFO] [stdout] 1169 | &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1169 | let _ = &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1184:4 [INFO] [stdout] | [INFO] [stdout] 1184 | &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1184 | let _ = &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1200:4 [INFO] [stdout] | [INFO] [stdout] 1200 | &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1200 | let _ = &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2035:6 [INFO] [stdout] | [INFO] [stdout] 2035 | { &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2035 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2039:6 [INFO] [stdout] | [INFO] [stdout] 2039 | { &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2039 | { let _ = &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2043:6 [INFO] [stdout] | [INFO] [stdout] 2043 | { &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2043 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/debug_to_json.rs:176:5 [INFO] [stdout] | [INFO] [stdout] 176 | &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 176 | let _ = &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:17:18 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow [INFO] [stdout] | ^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow<'_, str> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:28:28 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<[u8]> [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<'_, [u8]> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling nop-json v2.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: private item shadows public glob re-export [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the name `DebugToJson` in the macro namespace is supposed to be publicly re-exported here [INFO] [stdout] --> src/write_to_json.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub use nop_json_derive::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: but the private item here shadows it [INFO] [stdout] --> src/write_to_json.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(hidden_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1169:4 [INFO] [stdout] | [INFO] [stdout] 1169 | &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1169 | let _ = &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1184:4 [INFO] [stdout] | [INFO] [stdout] 1184 | &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1184 | let _ = &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:1200:4 [INFO] [stdout] | [INFO] [stdout] 1200 | &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1200 | let _ = &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2035:6 [INFO] [stdout] | [INFO] [stdout] 2035 | { &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2035 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2039:6 [INFO] [stdout] | [INFO] [stdout] 2039 | { &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2039 | { let _ = &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/nop_json.rs:2043:6 [INFO] [stdout] | [INFO] [stdout] 2043 | { &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2043 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/debug_to_json.rs:176:5 [INFO] [stdout] | [INFO] [stdout] 176 | &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 176 | let _ = &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:17:18 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow [INFO] [stdout] | ^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 17 | pub fn escape(s: &str) -> Cow<'_, str> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/escape.rs:28:28 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<[u8]> [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<'_, [u8]> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.45s [INFO] running `Command { std: "docker" "inspect" "0501a931cc74f29779e7b8e258283bf3d4931c9e58ef5790715fe9617e4651c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0501a931cc74f29779e7b8e258283bf3d4931c9e58ef5790715fe9617e4651c8", kill_on_drop: false }` [INFO] [stdout] 0501a931cc74f29779e7b8e258283bf3d4931c9e58ef5790715fe9617e4651c8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] e957d1f52b551c40c45731a0944518e273beca724e51c9a1c5e59f820dd60c48 [INFO] running `Command { std: "docker" "start" "-a" "e957d1f52b551c40c45731a0944518e273beca724e51c9a1c5e59f820dd60c48", kill_on_drop: false }` [INFO] [stderr] warning: private item shadows public glob re-export [INFO] [stderr] --> src/write_to_json.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: the name `DebugToJson` in the macro namespace is supposed to be publicly re-exported here [INFO] [stderr] --> src/write_to_json.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | pub use nop_json_derive::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] note: but the private item here shadows it [INFO] [stderr] --> src/write_to_json.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use crate::debug_to_json::DebugToJson; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] = note: `#[warn(hidden_glob_reexports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:1169:4 [INFO] [stderr] | [INFO] [stderr] 1169 | &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 1169 | let _ = &mut buffer[pos+len .. pos+len+e].copy_from_slice(&FORMAT_NUM_WIDTH_Z[0 .. e]); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:1184:4 [INFO] [stderr] | [INFO] [stderr] 1184 | &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 1184 | let _ = &mut buffer[pos .. pos+e-len+2].copy_from_slice(&FORMAT_NUM_WIDTH_0Z[0 .. e-len+2]); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:1200:4 [INFO] [stderr] | [INFO] [stderr] 1200 | &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 1200 | let _ = &mut buffer[len .. len+exponent_str.len()].copy_from_slice(exponent_str); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:2035:6 [INFO] [stderr] | [INFO] [stderr] 2035 | { &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 2035 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"null"); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:2039:6 [INFO] [stderr] | [INFO] [stderr] 2039 | { &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 2039 | { let _ = &mut self.buffer[0 .. 5].copy_from_slice(b"false"); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/nop_json.rs:2043:6 [INFO] [stderr] | [INFO] [stderr] 2043 | { &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 2043 | { let _ = &mut self.buffer[0 .. 4].copy_from_slice(b"true"); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/debug_to_json.rs:176:5 [INFO] [stderr] | [INFO] [stderr] 176 | &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 176 | let _ = &mut buffer[0 .. mantissa.len()].copy_from_slice(&mantissa); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/escape.rs:17:18 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn escape(s: &str) -> Cow [INFO] [stderr] | ^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 17 | pub fn escape(s: &str) -> Cow<'_, str> [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/escape.rs:28:28 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<[u8]> [INFO] [stderr] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 28 | pub fn escape_bytes(bytes: &[u8]) -> Cow<'_, [u8]> [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `nop-json` (lib) generated 10 warnings (run `cargo fix --lib -p nop-json` to apply 2 suggestions) [INFO] [stderr] warning: `nop-json` (lib test) generated 10 warnings (10 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/nop_json-6e9260a792433702) [INFO] [stdout] running 0 tests [INFO] [stderr] Running tests/all.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/all-82ce0f660928bd13) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 15 tests [INFO] [stdout] test test_escape ... ok [INFO] [stdout] test test_number_as_string ... ok [INFO] [stdout] test test_number_to_string ... ok [INFO] [stdout] test test_escape_bytes ... ok [INFO] [stdout] test test_object ... ok [INFO] [stdout] test test_bytes ... ok [INFO] [stdout] test test_char ... ok [INFO] [stdout] test test_number ... ok [INFO] [stdout] test test_pipe ... ok [INFO] [stdout] test test_to_json_string ... ok [INFO] [stdout] test test_value_number_to_string ... ok [INFO] [stdout] test test_write ... ok [INFO] [stdout] test test_string ... ok [INFO] [stdout] test test_value_is ... ok [INFO] [stdout] test test_value ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e957d1f52b551c40c45731a0944518e273beca724e51c9a1c5e59f820dd60c48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e957d1f52b551c40c45731a0944518e273beca724e51c9a1c5e59f820dd60c48", kill_on_drop: false }` [INFO] [stdout] e957d1f52b551c40c45731a0944518e273beca724e51c9a1c5e59f820dd60c48