[INFO] fetching crate matroska 0.30.0... [INFO] testing matroska-0.30.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] extracting crate matroska 0.30.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate matroska 0.30.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate matroska 0.30.0 [INFO] tweaked toml for crates.io crate matroska 0.30.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate matroska 0.30.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate matroska 0.30.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 23fc9fa3d4ad603bda4e7d9bd57bd5a5108fa63ea5904bc4856fe1c17c063964 [INFO] running `Command { std: "docker" "start" "-a" "23fc9fa3d4ad603bda4e7d9bd57bd5a5108fa63ea5904bc4856fe1c17c063964", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23fc9fa3d4ad603bda4e7d9bd57bd5a5108fa63ea5904bc4856fe1c17c063964", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23fc9fa3d4ad603bda4e7d9bd57bd5a5108fa63ea5904bc4856fe1c17c063964", kill_on_drop: false }` [INFO] [stdout] 23fc9fa3d4ad603bda4e7d9bd57bd5a5108fa63ea5904bc4856fe1c17c063964 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7bb3c733205ef1db1472e147344b37c1cfaeabe76fb10842dabb6570c4c41d21 [INFO] running `Command { std: "docker" "start" "-a" "7bb3c733205ef1db1472e147344b37c1cfaeabe76fb10842dabb6570c4c41d21", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling siphasher v0.3.10 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling phf_shared v0.11.1 [INFO] [stderr] Compiling core2 v0.4.0 [INFO] [stderr] Compiling bitstream-io v3.1.0 [INFO] [stderr] Compiling phf_generator v0.11.1 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling phf_macros v0.11.1 [INFO] [stderr] Compiling phf v0.11.1 [INFO] [stderr] Compiling matroska v0.30.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ebml.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | Int(i64), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `ElementType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 183 - Int(i64), [INFO] [stdout] 183 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.19s [INFO] running `Command { std: "docker" "inspect" "7bb3c733205ef1db1472e147344b37c1cfaeabe76fb10842dabb6570c4c41d21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bb3c733205ef1db1472e147344b37c1cfaeabe76fb10842dabb6570c4c41d21", kill_on_drop: false }` [INFO] [stdout] 7bb3c733205ef1db1472e147344b37c1cfaeabe76fb10842dabb6570c4c41d21 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 43d9f56e552712b3786ba6dd06f6acac34bc657c16f4975ebf8998f521437db1 [INFO] running `Command { std: "docker" "start" "-a" "43d9f56e552712b3786ba6dd06f6acac34bc657c16f4975ebf8998f521437db1", kill_on_drop: false }` [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ebml.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | Int(i64), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `ElementType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 183 - Int(i64), [INFO] [stdout] 183 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling matroska v0.30.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/ebml.rs:183:9 [INFO] [stdout] | [INFO] [stdout] 183 | Int(i64), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `ElementType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 183 - Int(i64), [INFO] [stdout] 183 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s [INFO] running `Command { std: "docker" "inspect" "43d9f56e552712b3786ba6dd06f6acac34bc657c16f4975ebf8998f521437db1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43d9f56e552712b3786ba6dd06f6acac34bc657c16f4975ebf8998f521437db1", kill_on_drop: false }` [INFO] [stdout] 43d9f56e552712b3786ba6dd06f6acac34bc657c16f4975ebf8998f521437db1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7d803b7fdff7c994612a2c340acf267b013c2dfec15665604c2c86c10a4cd052 [INFO] running `Command { std: "docker" "start" "-a" "7d803b7fdff7c994612a2c340acf267b013c2dfec15665604c2c86c10a4cd052", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/ebml.rs:183:9 [INFO] [stderr] | [INFO] [stderr] 183 | Int(i64), [INFO] [stderr] | --- ^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `ElementType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 183 - Int(i64), [INFO] [stderr] 183 + Int(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `matroska` (lib) generated 1 warning [INFO] [stderr] warning: `matroska` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matroska-90bca3491d0b7acc) [INFO] [stdout] [INFO] [stdout] running 0 tests [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] [stderr] Running tests/matroska.rs (/opt/rustwide/target/debug/deps/matroska-fe8c5ee5fc397f14) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Doc-tests matroska [INFO] [stdout] test info ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 15) - compile ... ok [INFO] [stdout] test src/lib.rs - (line 21) - compile ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7d803b7fdff7c994612a2c340acf267b013c2dfec15665604c2c86c10a4cd052", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d803b7fdff7c994612a2c340acf267b013c2dfec15665604c2c86c10a4cd052", kill_on_drop: false }` [INFO] [stdout] 7d803b7fdff7c994612a2c340acf267b013c2dfec15665604c2c86c10a4cd052