[INFO] fetching crate jsonseq 0.1.1...
[INFO] testing jsonseq-0.1.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate jsonseq 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate jsonseq 0.1.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonseq 0.1.1
[INFO] finished tweaking crates.io crate jsonseq 0.1.1
[INFO] tweaked toml for crates.io crate jsonseq 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 554af3c0d8e9c84f9e08d024540e66e39afc4f59f4b287e79ec585b0e889f743
[INFO] running `Command { std: "docker" "start" "-a" "554af3c0d8e9c84f9e08d024540e66e39afc4f59f4b287e79ec585b0e889f743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "554af3c0d8e9c84f9e08d024540e66e39afc4f59f4b287e79ec585b0e889f743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554af3c0d8e9c84f9e08d024540e66e39afc4f59f4b287e79ec585b0e889f743", kill_on_drop: false }`
[INFO] [stdout] 554af3c0d8e9c84f9e08d024540e66e39afc4f59f4b287e79ec585b0e889f743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c67a0ceef1456469512eda01ddc52a09c04098cbdc423bbf98a2cbce5435b9ad
[INFO] running `Command { std: "docker" "start" "-a" "c67a0ceef1456469512eda01ddc52a09c04098cbdc423bbf98a2cbce5435b9ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling jsonseq v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.21s
[INFO] running `Command { std: "docker" "inspect" "c67a0ceef1456469512eda01ddc52a09c04098cbdc423bbf98a2cbce5435b9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67a0ceef1456469512eda01ddc52a09c04098cbdc423bbf98a2cbce5435b9ad", kill_on_drop: false }`
[INFO] [stdout] c67a0ceef1456469512eda01ddc52a09c04098cbdc423bbf98a2cbce5435b9ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 67b18f8ce09d4224556e4f872265eea49cef666064ff93b454451ac15dbb64ea
[INFO] running `Command { std: "docker" "start" "-a" "67b18f8ce09d4224556e4f872265eea49cef666064ff93b454451ac15dbb64ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsonseq v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/write.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut buf = Vec::new();
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "67b18f8ce09d4224556e4f872265eea49cef666064ff93b454451ac15dbb64ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b18f8ce09d4224556e4f872265eea49cef666064ff93b454451ac15dbb64ea", kill_on_drop: false }`
[INFO] [stdout] 67b18f8ce09d4224556e4f872265eea49cef666064ff93b454451ac15dbb64ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2032253a92392daa2f6bf0315f77e9d1a72b54a1fbc81c623870409f51ea5caa
[INFO] running `Command { std: "docker" "start" "-a" "2032253a92392daa2f6bf0315f77e9d1a72b54a1fbc81c623870409f51ea5caa", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/write.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut buf = Vec::new();
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `jsonseq` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jsonseq-d1dd7e6e229d8992)
[INFO] [stdout] running 15 tests
[INFO] [stdout] test read::tests::empty1 ... ok
[INFO] [stdout] test read::tests::empty2 ... ok
[INFO] [stdout] test read::tests::json1 ... ok
[INFO] [stdout] test read::tests::json_with_nl1 ... ok
[INFO] [stderr]    Doc-tests jsonseq
[INFO] [stdout] test read::tests::json_with_nl2 ... ok
[INFO] [stdout] test read::tests::nl1 ... ok
[INFO] [stdout] test read::tests::simple1 ... ok
[INFO] [stdout] test read::tests::simple3 ... ok
[INFO] [stdout] test read::tests::simple2 ... ok
[INFO] [stdout] test tests::roundtrip1 ... ok
[INFO] [stdout] test write::tests::json1 ... ok
[INFO] [stdout] test write::tests::raw1 ... ok
[INFO] [stdout] test read::tests::simple4 ... ok
[INFO] [stdout] test read::tests::json2 ... ok
[INFO] [stdout] test read::tests::simple5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "2032253a92392daa2f6bf0315f77e9d1a72b54a1fbc81c623870409f51ea5caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2032253a92392daa2f6bf0315f77e9d1a72b54a1fbc81c623870409f51ea5caa", kill_on_drop: false }`
[INFO] [stdout] 2032253a92392daa2f6bf0315f77e9d1a72b54a1fbc81c623870409f51ea5caa