[INFO] fetching crate slog-json-concur 0.1.0...
[INFO] testing slog-json-concur-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate slog-json-concur 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate slog-json-concur 0.1.0
[INFO] finished tweaking crates.io crate slog-json-concur 0.1.0
[INFO] tweaked toml for crates.io crate slog-json-concur 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slog-json-concur 0.1.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slog-json-concur 0.1.0 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.3.11
[INFO] [stderr]   Downloaded slog-json v2.6.1
[INFO] [stderr]   Downloaded erased-serde v0.3.21
[INFO] [stderr]   Downloaded serde v1.0.139
[INFO] [stderr]   Downloaded serde_json v1.0.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f48ce4ff093fc6bd1cc6e8a9deeda62ee9e4ece26098a3bd69601d75969e3d0
[INFO] running `Command { std: "docker" "start" "-a" "6f48ce4ff093fc6bd1cc6e8a9deeda62ee9e4ece26098a3bd69601d75969e3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f48ce4ff093fc6bd1cc6e8a9deeda62ee9e4ece26098a3bd69601d75969e3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f48ce4ff093fc6bd1cc6e8a9deeda62ee9e4ece26098a3bd69601d75969e3d0", kill_on_drop: false }`
[INFO] [stdout] 6f48ce4ff093fc6bd1cc6e8a9deeda62ee9e4ece26098a3bd69601d75969e3d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b24ef065b0c8c5a7b4344ff4cda7596a14379dc2f429c5fd5a44833215bd3667
[INFO] running `Command { std: "docker" "start" "-a" "b24ef065b0c8c5a7b4344ff4cda7596a14379dc2f429c5fd5a44833215bd3667", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling time v0.3.11
[INFO] [stderr]    Compiling slog-json-concur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::new_ret_no_self))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `default`, `dynamic-keys`, `erased-serde`, and `nested-values`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `Command { std: "docker" "inspect" "b24ef065b0c8c5a7b4344ff4cda7596a14379dc2f429c5fd5a44833215bd3667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24ef065b0c8c5a7b4344ff4cda7596a14379dc2f429c5fd5a44833215bd3667", kill_on_drop: false }`
[INFO] [stdout] b24ef065b0c8c5a7b4344ff4cda7596a14379dc2f429c5fd5a44833215bd3667
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68b7b659b9b9ef7c7dc60d76784d44950fb55fb3fe66ccbac131225c63dfcfbd
[INFO] running `Command { std: "docker" "start" "-a" "68b7b659b9b9ef7c7dc60d76784d44950fb55fb3fe66ccbac131225c63dfcfbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling slog-json v2.6.1
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::new_ret_no_self))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `default`, `dynamic-keys`, `erased-serde`, and `nested-values`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slog-json-concur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::new_ret_no_self))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `default`, `dynamic-keys`, `erased-serde`, and `nested-values`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "68b7b659b9b9ef7c7dc60d76784d44950fb55fb3fe66ccbac131225c63dfcfbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b7b659b9b9ef7c7dc60d76784d44950fb55fb3fe66ccbac131225c63dfcfbd", kill_on_drop: false }`
[INFO] [stdout] 68b7b659b9b9ef7c7dc60d76784d44950fb55fb3fe66ccbac131225c63dfcfbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b858cc2805dc93810c5575c0f576359212c90612d2f509367380edfabb12997b
[INFO] running `Command { std: "docker" "start" "-a" "b858cc2805dc93810c5575c0f576359212c90612d2f509367380edfabb12997b", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]    --> src/lib.rs:189:16
[INFO] [stderr]     |
[INFO] [stderr] 189 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::new_ret_no_self))]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `feature` are: `default`, `dynamic-keys`, `erased-serde`, and `nested-values`
[INFO] [stderr]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `slog-json-concur` (lib) generated 1 warning
[INFO] [stderr] warning: `slog-json-concur` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slog_json_concur-c7e235758fc7c8dd)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog_json_concur
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b858cc2805dc93810c5575c0f576359212c90612d2f509367380edfabb12997b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b858cc2805dc93810c5575c0f576359212c90612d2f509367380edfabb12997b", kill_on_drop: false }`
[INFO] [stdout] b858cc2805dc93810c5575c0f576359212c90612d2f509367380edfabb12997b
