[INFO] fetching crate concat 0.1.0...
[INFO] testing concat-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate concat 0.1.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate concat 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 concat 0.1.0
[INFO] finished tweaking crates.io crate concat 0.1.0
[INFO] tweaked toml for crates.io crate concat 0.1.0 written to /workspace/builds/worker-55/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] 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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad3ec56ecadfb1da4554b7a454d419d0c567803d3586b9ba35315d055b771c2d
[INFO] running `Command { std: "docker" "start" "-a" "ad3ec56ecadfb1da4554b7a454d419d0c567803d3586b9ba35315d055b771c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad3ec56ecadfb1da4554b7a454d419d0c567803d3586b9ba35315d055b771c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad3ec56ecadfb1da4554b7a454d419d0c567803d3586b9ba35315d055b771c2d", kill_on_drop: false }`
[INFO] [stdout] ad3ec56ecadfb1da4554b7a454d419d0c567803d3586b9ba35315d055b771c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9c13e78526a7c193b1c0930c5e5da35e3c179f9cf2f92b564abddb7f4e109bf
[INFO] running `Command { std: "docker" "start" "-a" "e9c13e78526a7c193b1c0930c5e5da35e3c179f9cf2f92b564abddb7f4e109bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling concat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:41:32
[INFO] [stdout]    |
[INFO] [stdout] 41 |             Some(ref mut r) => 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 0.13s
[INFO] running `Command { std: "docker" "inspect" "e9c13e78526a7c193b1c0930c5e5da35e3c179f9cf2f92b564abddb7f4e109bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c13e78526a7c193b1c0930c5e5da35e3c179f9cf2f92b564abddb7f4e109bf", kill_on_drop: false }`
[INFO] [stdout] e9c13e78526a7c193b1c0930c5e5da35e3c179f9cf2f92b564abddb7f4e109bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ba783ca2bc650aa867f56871dba140f9d72af5384a5551db9a5254547f4f69e
[INFO] running `Command { std: "docker" "start" "-a" "6ba783ca2bc650aa867f56871dba140f9d72af5384a5551db9a5254547f4f69e", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:41:32
[INFO] [stdout]    |
[INFO] [stdout] 41 |             Some(ref mut r) => 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]    Compiling concat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/cat.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |             self.file = Some(try!(File::open(&self.path)));
[INFO] [stdout]    |                              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:41:32
[INFO] [stdout]    |
[INFO] [stdout] 41 |             Some(ref mut r) => 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "6ba783ca2bc650aa867f56871dba140f9d72af5384a5551db9a5254547f4f69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba783ca2bc650aa867f56871dba140f9d72af5384a5551db9a5254547f4f69e", kill_on_drop: false }`
[INFO] [stdout] 6ba783ca2bc650aa867f56871dba140f9d72af5384a5551db9a5254547f4f69e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbdc4cdd13358f5b5be84a626d576efa88fb4604b095ed519e439fd748bff77d
[INFO] running `Command { std: "docker" "start" "-a" "cbdc4cdd13358f5b5be84a626d576efa88fb4604b095ed519e439fd748bff77d", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:41:32
[INFO] [stderr]    |
[INFO] [stderr] 41 |             Some(ref mut r) => try!(r.read(buf)),
[INFO] [stderr]    |                                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `concat` (lib) generated 1 warning
[INFO] [stderr] warning: `concat` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> examples/cat.rs:61:30
[INFO] [stderr]    |
[INFO] [stderr] 61 |             self.file = Some(try!(File::open(&self.path)));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `concat` (example "cat") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concat-7b1cc9ea5abac46f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_concats ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests concat
[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" "cbdc4cdd13358f5b5be84a626d576efa88fb4604b095ed519e439fd748bff77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbdc4cdd13358f5b5be84a626d576efa88fb4604b095ed519e439fd748bff77d", kill_on_drop: false }`
[INFO] [stdout] cbdc4cdd13358f5b5be84a626d576efa88fb4604b095ed519e439fd748bff77d