[INFO] fetching crate benv 0.1.3...
[INFO] checking benv-0.1.3 against beta for pr-78714
[INFO] extracting crate benv 0.1.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate benv 0.1.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate benv 0.1.3
[INFO] finished tweaking crates.io crate benv 0.1.3
[INFO] tweaked toml for crates.io crate benv 0.1.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 4b38989cc981ec59886da107b44fb8541f3d51b0cff9e0db0622f49b1fadc55a
[INFO] running `Command { std: "docker" "start" "-a" "4b38989cc981ec59886da107b44fb8541f3d51b0cff9e0db0622f49b1fadc55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b38989cc981ec59886da107b44fb8541f3d51b0cff9e0db0622f49b1fadc55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b38989cc981ec59886da107b44fb8541f3d51b0cff9e0db0622f49b1fadc55a", kill_on_drop: false }`
[INFO] [stdout] 4b38989cc981ec59886da107b44fb8541f3d51b0cff9e0db0622f49b1fadc55a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 59c552255f4e7ef86b07faa1050ff2d40404cf3e32779d3d1a9e2fb5dbefe2c9
[INFO] running `Command { std: "docker" "start" "-a" "59c552255f4e7ef86b07faa1050ff2d40404cf3e32779d3d1a9e2fb5dbefe2c9", kill_on_drop: false }`
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking benv v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |    let lines = try!(read_lines_reverse(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/load.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |       let parsed = try!(split(line).and_then(parse));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:37:15
[INFO] [stdout]    |
[INFO] [stdout] 37 |    let file = try!(File::open(path));
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |       let line = try!(line);
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/run.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (program, args) = try!(split_program_and_args(program_with_args));
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/run.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let child = try!(command.spawn());
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |    let lines = try!(read_lines_reverse(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/load.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |       let parsed = try!(split(line).and_then(parse));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:37:15
[INFO] [stdout]    |
[INFO] [stdout] 37 |    let file = try!(File::open(path));
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/load.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |       let line = try!(line);
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> src/run.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (program, args) = try!(split_program_and_args(program_with_args));
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/run.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let child = try!(command.spawn());
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "59c552255f4e7ef86b07faa1050ff2d40404cf3e32779d3d1a9e2fb5dbefe2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c552255f4e7ef86b07faa1050ff2d40404cf3e32779d3d1a9e2fb5dbefe2c9", kill_on_drop: false }`
[INFO] [stdout] 59c552255f4e7ef86b07faa1050ff2d40404cf3e32779d3d1a9e2fb5dbefe2c9