[INFO] cloning repository https://github.com/mmstick/permutate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmstick/permutate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmstick%2Fpermutate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmstick%2Fpermutate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a212470f14b540dd55bbc676a71e8e558aeb77a6
[INFO] testing mmstick/permutate against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmstick%2Fpermutate" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmstick/permutate on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmstick/permutate
[INFO] finished tweaking git repo https://github.com/mmstick/permutate
[INFO] tweaked toml for git repo https://github.com/mmstick/permutate written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mmstick/permutate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-4/source/src/bin/buffer.rs
[INFO] [stderr] * /workspace/builds/worker-4/source/src/bin/arguments.rs
[INFO] [stderr] * /workspace/builds/worker-4/source/src/bin/man.rs
[INFO] [stderr] * /workspace/builds/worker-4/source/src/bin/mod.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 553d8d4493dc3661e4cb24d7ed311ed4dfcb0b32c20b809d973f879f5ea8a354
[INFO] running `Command { std: "docker" "start" "-a" "553d8d4493dc3661e4cb24d7ed311ed4dfcb0b32c20b809d973f879f5ea8a354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "553d8d4493dc3661e4cb24d7ed311ed4dfcb0b32c20b809d973f879f5ea8a354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "553d8d4493dc3661e4cb24d7ed311ed4dfcb0b32c20b809d973f879f5ea8a354", kill_on_drop: false }`
[INFO] [stdout] 553d8d4493dc3661e4cb24d7ed311ed4dfcb0b32c20b809d973f879f5ea8a354
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f770c3a3e6fe52398f3aefd51cbbd66f316335598d01ebcb8a956d6cede6376a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f770c3a3e6fe52398f3aefd51cbbd66f316335598d01ebcb8a956d6cede6376a", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/buffer.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/arguments.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/man.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/mod.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling permutate v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:124:45
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   for argument in try!(file_parse(&current_argument)) {
[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/bin/arguments.rs:147:29
[INFO] [stdout]     |
[INFO] [stdout] 147 |             for argument in try!(file_parse(&current_argument)) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(fs::File::open(path)
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "f770c3a3e6fe52398f3aefd51cbbd66f316335598d01ebcb8a956d6cede6376a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f770c3a3e6fe52398f3aefd51cbbd66f316335598d01ebcb8a956d6cede6376a", kill_on_drop: false }`
[INFO] [stdout] f770c3a3e6fe52398f3aefd51cbbd66f316335598d01ebcb8a956d6cede6376a
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5234804d4e85ab140a80815bfd390b149ac46c5eaa79cb5d07a8f52c7398eb04
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5234804d4e85ab140a80815bfd390b149ac46c5eaa79cb5d07a8f52c7398eb04", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/buffer.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/arguments.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/man.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/mod.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:124:45
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   for argument in try!(file_parse(&current_argument)) {
[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/bin/arguments.rs:147:29
[INFO] [stdout]     |
[INFO] [stdout] 147 |             for argument in try!(file_parse(&current_argument)) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(fs::File::open(path)
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling tinytemplate v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling permutate v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:124:45
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   for argument in try!(file_parse(&current_argument)) {
[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/bin/arguments.rs:147:29
[INFO] [stdout]     |
[INFO] [stdout] 147 |             for argument in try!(file_parse(&current_argument)) {
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/bin/arguments.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(fs::File::open(path)
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "5234804d4e85ab140a80815bfd390b149ac46c5eaa79cb5d07a8f52c7398eb04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5234804d4e85ab140a80815bfd390b149ac46c5eaa79cb5d07a8f52c7398eb04", kill_on_drop: false }`
[INFO] [stdout] 5234804d4e85ab140a80815bfd390b149ac46c5eaa79cb5d07a8f52c7398eb04
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a89a2b298e817fb117e93baa80b330c1cd3e0db6e0ea5f97230c4bbae65014e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1a89a2b298e817fb117e93baa80b330c1cd3e0db6e0ea5f97230c4bbae65014e", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/buffer.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/arguments.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/man.rs
[INFO] [stderr] * /opt/rustwide/workdir/src/bin/mod.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:124:45
[INFO] [stderr]     |
[INFO] [stderr] 124 | ...                   for argument in try!(file_parse(&current_argument)) {
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:147:29
[INFO] [stderr]     |
[INFO] [stderr] 147 |             for argument in try!(file_parse(&current_argument)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(fs::File::open(path)
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:124:45
[INFO] [stderr]     |
[INFO] [stderr] 124 | ...                   for argument in try!(file_parse(&current_argument)) {
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:147:29
[INFO] [stderr]     |
[INFO] [stderr] 147 |             for argument in try!(file_parse(&current_argument)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/bin/arguments.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(fs::File::open(path)
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/permutate-d5366c4206eb5433
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/permutate_bin-f479161becdc69ba
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/million_permutations-755d48a38b3ce4a8
[INFO] [stdout] test bin::arguments::test::test_parse_arguments ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_million_permutations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/permutation_values-ecc270cd266e7197
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_permutation_values_b_derefs ... ok
[INFO] [stdout] test test_permutation_values ... ok
[INFO] [stdout] test test_permutation_values_b ... ok
[INFO] [stdout] test test_permutation_values_with_buffer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reset-c3a32e735649699a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_reset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_list_permutation-6e6796afe983794c
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test single_list_permutation_with_buffer ... ok
[INFO] [stdout] test single_list_permutation_b ... ok
[INFO] [stdout] test test_value_owned_permutation ... ok
[INFO] [stdout] test single_list_permutation ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/todo-ed49cdf28ee7c469
[INFO] [stdout] test test_value_permutation_b ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tuples-f285535d3382269c
[INFO] [stdout] test single_list_permutation_b_with_buffer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr]    Doc-tests permutate
[INFO] [stdout] test test_tuple_d_with_buffer ... ok
[INFO] [stdout] test test_tuple_b_with_buffer ... ok
[INFO] [stdout] test test_tuple_b ... ok
[INFO] [stdout] test test_tuple_a_with_buffer ... ok
[INFO] [stdout] test test_tuple_c ... ok
[INFO] [stdout] test test_tuple_c_with_buffer ... ok
[INFO] [stdout] test test_tuple_d ... ok
[INFO] [stdout] test test_tuple_a ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] test src/list_wrapper/single_list.rs - list_wrapper::single_list::Repeated (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - (line 134) ... ok
[INFO] [stdout] test src/lib.rs - (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a89a2b298e817fb117e93baa80b330c1cd3e0db6e0ea5f97230c4bbae65014e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a89a2b298e817fb117e93baa80b330c1cd3e0db6e0ea5f97230c4bbae65014e", kill_on_drop: false }`
[INFO] [stdout] 1a89a2b298e817fb117e93baa80b330c1cd3e0db6e0ea5f97230c4bbae65014e