[INFO] fetching crate multi_reader 0.1.0...
[INFO] testing multi_reader-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate multi_reader 0.1.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate multi_reader 0.1.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multi_reader 0.1.0
[INFO] finished tweaking crates.io crate multi_reader 0.1.0
[INFO] tweaked toml for crates.io crate multi_reader 0.1.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5595dc0fdfe7afb28844a76ba70f732346f548fe99fe261f014b301e1e663869
[INFO] running `Command { std: "docker" "start" "-a" "5595dc0fdfe7afb28844a76ba70f732346f548fe99fe261f014b301e1e663869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5595dc0fdfe7afb28844a76ba70f732346f548fe99fe261f014b301e1e663869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5595dc0fdfe7afb28844a76ba70f732346f548fe99fe261f014b301e1e663869", kill_on_drop: false }`
[INFO] [stdout] 5595dc0fdfe7afb28844a76ba70f732346f548fe99fe261f014b301e1e663869
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 280c9cca61e8dfbf9d611c05a86058559ff4c2254ea00c7b721ff374d07e7538
[INFO] running `Command { std: "docker" "start" "-a" "280c9cca61e8dfbf9d611c05a86058559ff4c2254ea00c7b721ff374d07e7538", kill_on_drop: false }`
[INFO] [stderr]    Compiling multi_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let n = try!(r.read(buf));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "280c9cca61e8dfbf9d611c05a86058559ff4c2254ea00c7b721ff374d07e7538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "280c9cca61e8dfbf9d611c05a86058559ff4c2254ea00c7b721ff374d07e7538", kill_on_drop: false }`
[INFO] [stdout] 280c9cca61e8dfbf9d611c05a86058559ff4c2254ea00c7b721ff374d07e7538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30e1a23e8483b34d6d16f2531b2c50697607fea6e24afbb7dda0185df0d1634e
[INFO] running `Command { std: "docker" "start" "-a" "30e1a23e8483b34d6d16f2531b2c50697607fea6e24afbb7dda0185df0d1634e", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let n = try!(r.read(buf));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling multi_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let n = try!(r.read(buf));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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 0.98s
[INFO] running `Command { std: "docker" "inspect" "30e1a23e8483b34d6d16f2531b2c50697607fea6e24afbb7dda0185df0d1634e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e1a23e8483b34d6d16f2531b2c50697607fea6e24afbb7dda0185df0d1634e", kill_on_drop: false }`
[INFO] [stdout] 30e1a23e8483b34d6d16f2531b2c50697607fea6e24afbb7dda0185df0d1634e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b1e2b2e3fe5c81b892b26ff869c35f1ba71915ddd410e87bc6bdac6d8311095
[INFO] running `Command { std: "docker" "start" "-a" "1b1e2b2e3fe5c81b892b26ff869c35f1ba71915ddd410e87bc6bdac6d8311095", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |                     let n = try!(r.read(buf));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `multi_reader` (lib) generated 1 warning
[INFO] [stderr] warning: `multi_reader` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/multi_reader-9ff3160b6994bcd6)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_first_readers_is_empty ... ok
[INFO] [stdout] test tests::test_err_during_read ... ok
[INFO] [stdout] test tests::test_last_readers_is_empty ... ok
[INFO] [stdout] test tests::test_middle_readers_is_empty ... ok
[INFO] [stdout] test tests::test_only_empty_readers ... ok
[INFO] [stdout] test tests::test_several_readers ... ok
[INFO] [stdout] test tests::test_single_reader ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multi_reader
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b1e2b2e3fe5c81b892b26ff869c35f1ba71915ddd410e87bc6bdac6d8311095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1e2b2e3fe5c81b892b26ff869c35f1ba71915ddd410e87bc6bdac6d8311095", kill_on_drop: false }`
[INFO] [stdout] 1b1e2b2e3fe5c81b892b26ff869c35f1ba71915ddd410e87bc6bdac6d8311095