[INFO] fetching crate jsonseq 0.1.1...
[INFO] testing jsonseq-0.1.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate jsonseq 0.1.1 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate jsonseq 0.1.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-67/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0e5da1a0e9ddbcfa4f10f2866a6110a5dc77b3b277385c5607c97e3b150b814
[INFO] running `Command { std: "docker" "start" "-a" "e0e5da1a0e9ddbcfa4f10f2866a6110a5dc77b3b277385c5607c97e3b150b814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e5da1a0e9ddbcfa4f10f2866a6110a5dc77b3b277385c5607c97e3b150b814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e5da1a0e9ddbcfa4f10f2866a6110a5dc77b3b277385c5607c97e3b150b814", kill_on_drop: false }`
[INFO] [stdout] e0e5da1a0e9ddbcfa4f10f2866a6110a5dc77b3b277385c5607c97e3b150b814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e468d641218215e88a5502dd88c04c997a54e64b9913e0db8186da592c9d0e16
[INFO] running `Command { std: "docker" "start" "-a" "e468d641218215e88a5502dd88c04c997a54e64b9913e0db8186da592c9d0e16", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.72
[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 30.03s
[INFO] running `Command { std: "docker" "inspect" "e468d641218215e88a5502dd88c04c997a54e64b9913e0db8186da592c9d0e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e468d641218215e88a5502dd88c04c997a54e64b9913e0db8186da592c9d0e16", kill_on_drop: false }`
[INFO] [stdout] e468d641218215e88a5502dd88c04c997a54e64b9913e0db8186da592c9d0e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcb148788e9225c59d16feca81b05783c903f73508d7fadfaf4d3e89a656651e
[INFO] running `Command { std: "docker" "start" "-a" "bcb148788e9225c59d16feca81b05783c903f73508d7fadfaf4d3e89a656651e", 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 1.07s
[INFO] running `Command { std: "docker" "inspect" "bcb148788e9225c59d16feca81b05783c903f73508d7fadfaf4d3e89a656651e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcb148788e9225c59d16feca81b05783c903f73508d7fadfaf4d3e89a656651e", kill_on_drop: false }`
[INFO] [stdout] bcb148788e9225c59d16feca81b05783c903f73508d7fadfaf4d3e89a656651e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c35b96d8103536ede405e2e49c46435ce722e4f5eb34d01279f9a9808ac9bb11
[INFO] running `Command { std: "docker" "start" "-a" "c35b96d8103536ede405e2e49c46435ce722e4f5eb34d01279f9a9808ac9bb11", 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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jsonseq-68d4158224007641)
[INFO] [stdout] 
[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::json2 ... ok
[INFO] [stdout] test read::tests::json_with_nl1 ... ok
[INFO] [stdout] test read::tests::nl1 ... ok
[INFO] [stdout] test read::tests::json_with_nl2 ... ok
[INFO] [stdout] test read::tests::simple1 ... ok
[INFO] [stdout] test read::tests::simple2 ... ok
[INFO] [stdout] test read::tests::simple3 ... ok
[INFO] [stdout] test read::tests::simple4 ... ok
[INFO] [stdout] test read::tests::simple5 ... ok
[INFO] [stdout] test tests::roundtrip1 ... ok
[INFO] [stdout] test write::tests::raw1 ... ok
[INFO] [stdout] test write::tests::json1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jsonseq
[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" "c35b96d8103536ede405e2e49c46435ce722e4f5eb34d01279f9a9808ac9bb11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35b96d8103536ede405e2e49c46435ce722e4f5eb34d01279f9a9808ac9bb11", kill_on_drop: false }`
[INFO] [stdout] c35b96d8103536ede405e2e49c46435ce722e4f5eb34d01279f9a9808ac9bb11