[INFO] cloning repository https://github.com/whalelephant/serde_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whalelephant/serde_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhalelephant%2Fserde_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhalelephant%2Fserde_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3133041f006c22b06e26960df7ef3f413a976760 [INFO] testing whalelephant/serde_playground against master#160e7623e8cbbf1feab2b6e2a24733a98c7bde9c for pr-145628 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhalelephant%2Fserde_playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/whalelephant/serde_playground [INFO] finished tweaking git repo https://github.com/whalelephant/serde_playground [INFO] tweaked toml for git repo https://github.com/whalelephant/serde_playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/whalelephant/serde_playground on toolchain 160e7623e8cbbf1feab2b6e2a24733a98c7bde9c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/whalelephant/serde_playground 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" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ryu v1.0.6 [INFO] [stderr] Downloaded serde_json v1.0.72 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f04c213e7d5e25ff26c836dd3f095280c6d4c7c6e1b798a4eb19d43cc0fda56 [INFO] running `Command { std: "docker" "start" "-a" "9f04c213e7d5e25ff26c836dd3f095280c6d4c7c6e1b798a4eb19d43cc0fda56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f04c213e7d5e25ff26c836dd3f095280c6d4c7c6e1b798a4eb19d43cc0fda56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f04c213e7d5e25ff26c836dd3f095280c6d4c7c6e1b798a4eb19d43cc0fda56", kill_on_drop: false }` [INFO] [stdout] 9f04c213e7d5e25ff26c836dd3f095280c6d4c7c6e1b798a4eb19d43cc0fda56 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 272664def014c57fcea68d1f9db86397dac2cc4863e94185bd54bd9c1816e29f [INFO] running `Command { std: "docker" "start" "-a" "272664def014c57fcea68d1f9db86397dac2cc4863e94185bd54bd9c1816e29f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling serde_play v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Visitor` [INFO] [stdout] --> src/main.rs:4:27 [INFO] [stdout] | [INFO] [stdout] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DeserializeSeed` [INFO] [stdout] --> src/main.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:13:22 [INFO] [stdout] | [INFO] [stdout] 13 | struct DeBigUintType(BigUint); [INFO] [stdout] | ------------- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `DeBigUintType` 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] [INFO] [stdout] [INFO] [stdout] warning: fields `p` and `q` are never read [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 16 | struct Input { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 17 | pub p: DeBigUintType, [INFO] [stdout] | ^ [INFO] [stdout] 18 | pub q: DeBigUintType, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `Input` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Fields` is never used [INFO] [stdout] --> src/main.rs:23:6 [INFO] [stdout] | [INFO] [stdout] 23 | enum Fields { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.99s [INFO] running `Command { std: "docker" "inspect" "272664def014c57fcea68d1f9db86397dac2cc4863e94185bd54bd9c1816e29f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "272664def014c57fcea68d1f9db86397dac2cc4863e94185bd54bd9c1816e29f", kill_on_drop: false }` [INFO] [stdout] 272664def014c57fcea68d1f9db86397dac2cc4863e94185bd54bd9c1816e29f [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fbdae8a5163e5fe2b5beeecb412d59d4a6740e2d6709e0a2c1f3184c6a5bd82 [INFO] running `Command { std: "docker" "start" "-a" "5fbdae8a5163e5fe2b5beeecb412d59d4a6740e2d6709e0a2c1f3184c6a5bd82", kill_on_drop: false }` [INFO] [stderr] Compiling serde_play v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Visitor` [INFO] [stdout] --> src/main.rs:4:27 [INFO] [stdout] | [INFO] [stdout] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DeserializeSeed` [INFO] [stdout] --> src/main.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:13:22 [INFO] [stdout] | [INFO] [stdout] 13 | struct DeBigUintType(BigUint); [INFO] [stdout] | ------------- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `DeBigUintType` 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] [INFO] [stdout] [INFO] [stdout] warning: fields `p` and `q` are never read [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 16 | struct Input { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 17 | pub p: DeBigUintType, [INFO] [stdout] | ^ [INFO] [stdout] 18 | pub q: DeBigUintType, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `Input` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Fields` is never used [INFO] [stdout] --> src/main.rs:23:6 [INFO] [stdout] | [INFO] [stdout] 23 | enum Fields { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "5fbdae8a5163e5fe2b5beeecb412d59d4a6740e2d6709e0a2c1f3184c6a5bd82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fbdae8a5163e5fe2b5beeecb412d59d4a6740e2d6709e0a2c1f3184c6a5bd82", kill_on_drop: false }` [INFO] [stdout] 5fbdae8a5163e5fe2b5beeecb412d59d4a6740e2d6709e0a2c1f3184c6a5bd82 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2943734e74f5c9e50e114ecacc5579a6f04fc7a82a19fe71f7fedd11aeee4fe2 [INFO] running `Command { std: "docker" "start" "-a" "2943734e74f5c9e50e114ecacc5579a6f04fc7a82a19fe71f7fedd11aeee4fe2", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Visitor` [INFO] [stderr] --> src/main.rs:4:27 [INFO] [stderr] | [INFO] [stderr] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `DeserializeSeed` [INFO] [stderr] --> src/main.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | de::{DeserializeSeed, Visitor}, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:13:22 [INFO] [stderr] | [INFO] [stderr] 13 | struct DeBigUintType(BigUint); [INFO] [stderr] | ------------- ^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing this field [INFO] [stderr] = note: `DeBigUintType` 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] [INFO] [stderr] warning: fields `p` and `q` are never read [INFO] [stderr] --> src/main.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 16 | struct Input { [INFO] [stderr] | ----- fields in this struct [INFO] [stderr] 17 | pub p: DeBigUintType, [INFO] [stderr] | ^ [INFO] [stderr] 18 | pub q: DeBigUintType, [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `Input` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: enum `Fields` is never used [INFO] [stderr] --> src/main.rs:23:6 [INFO] [stderr] | [INFO] [stderr] 23 | enum Fields { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `serde_play` (bin "serde_play" test) generated 5 warnings (run `cargo fix --bin "serde_play" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/serde_play-519b2563891b2765) [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] running `Command { std: "docker" "inspect" "2943734e74f5c9e50e114ecacc5579a6f04fc7a82a19fe71f7fedd11aeee4fe2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2943734e74f5c9e50e114ecacc5579a6f04fc7a82a19fe71f7fedd11aeee4fe2", kill_on_drop: false }` [INFO] [stdout] 2943734e74f5c9e50e114ecacc5579a6f04fc7a82a19fe71f7fedd11aeee4fe2