[INFO] fetching crate btrfs-dedupe 1.0.2...
[INFO] building btrfs-dedupe-1.0.2 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate btrfs-dedupe 1.0.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate btrfs-dedupe 1.0.2 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfs-dedupe 1.0.2
[INFO] finished tweaking crates.io crate btrfs-dedupe 1.0.2
[INFO] tweaked toml for crates.io crate btrfs-dedupe 1.0.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha2 v0.2.0
[INFO] [stderr]   Downloaded generic-array v0.5.1
[INFO] [stderr]   Downloaded btrfs v1.2.2
[INFO] [stderr]   Downloaded digest-buffer v0.1.2
[INFO] [stderr]   Downloaded digest v0.2.1
[INFO] [stderr]   Downloaded byte-tools v0.1.3
[INFO] [stderr]   Downloaded minilzo v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a4ddfeb0d20f1b33cfcf79c84cfa133ef54e2107165c8d3f1989ca5d68a11ed
[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" "0a4ddfeb0d20f1b33cfcf79c84cfa133ef54e2107165c8d3f1989ca5d68a11ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a4ddfeb0d20f1b33cfcf79c84cfa133ef54e2107165c8d3f1989ca5d68a11ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4ddfeb0d20f1b33cfcf79c84cfa133ef54e2107165c8d3f1989ca5d68a11ed", kill_on_drop: false }`
[INFO] [stdout] 0a4ddfeb0d20f1b33cfcf79c84cfa133ef54e2107165c8d3f1989ca5d68a11ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ffb8c53573ea3856608a659bbc91c87bd4456cf7c5e8a82c202196b0cc0725
[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" "a5ffb8c53573ea3856608a659bbc91c87bd4456cf7c5e8a82c202196b0cc0725", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byte-tools v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling minilzo-sys v0.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling minilzo v0.2.0
[INFO] [stderr]    Compiling generic-array v0.5.1
[INFO] [stderr]    Compiling digest v0.2.1
[INFO] [stderr]    Compiling digest-buffer v0.1.2
[INFO] [stderr]    Compiling sha2 v0.2.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling btrfs v1.2.2
[INFO] [stderr]    Compiling btrfs-dedupe v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[ macro_use ]
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/examine.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |         try! (
[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/examine.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | /             stderr! (
[INFO] [stdout] 69 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]    | |__________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | /         stderr! (
[INFO] [stdout] 77 | |             "{}\r\n",
[INFO] [stdout] 78 | |             status);
[INFO] [stdout]    | |____________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 | /             stderr! (
[INFO] [stdout] 90 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]    | |__________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 | /         stderr! (
[INFO] [stdout] 95 | |             "{}\r\n",
[INFO] [stdout] 96 | |             message);
[INFO] [stdout]    | |_____________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:8:38
[INFO] [stdout]     |
[INFO] [stdout] 8   |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/output.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 | /             stderr! (
[INFO] [stdout] 101 | |                 "{}\r\n",
[INFO] [stdout] 102 | |                 self.status.as_ref ().unwrap ());
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:8:38
[INFO] [stdout]     |
[INFO] [stdout] 8   |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/output.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 | /             stderr! (
[INFO] [stdout] 115 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]     | |__________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     in try! (
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:31:38
[INFO] [stdout]     |
[INFO] [stdout] 31  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/scan.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 | /             stderrln! (
[INFO] [stdout] 122 | |                 "Ignoring unknown filetype: {:?}: {:?}",
[INFO] [stdout] 123 | |                 file_type,
[INFO] [stdout] 124 | |                 entry.path ());
[INFO] [stdout]     | |_______________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scan.rs:175:3
[INFO] [stdout]     |
[INFO] [stdout] 175 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:121:47
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let file_metadata_lists: FileMetadataLists = try! (
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/misc/io.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |         io_error.description ().to_string ()
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/output.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut terminal =
[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: field is never read: `terminal`
[INFO] [stdout]   --> src/output.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     terminal: Option <RawTerminal <Stdout>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.63s
[INFO] running `Command { std: "docker" "inspect" "a5ffb8c53573ea3856608a659bbc91c87bd4456cf7c5e8a82c202196b0cc0725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ffb8c53573ea3856608a659bbc91c87bd4456cf7c5e8a82c202196b0cc0725", kill_on_drop: false }`
[INFO] [stdout] a5ffb8c53573ea3856608a659bbc91c87bd4456cf7c5e8a82c202196b0cc0725
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30b6bec2ebe317479a07d6c5d8052cdd43bc331a8432bc9abafbe71c64766588
[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" "30b6bec2ebe317479a07d6c5d8052cdd43bc331a8432bc9abafbe71c64766588", kill_on_drop: false }`
[INFO] [stderr]    Compiling btrfs-dedupe v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[ macro_use ]
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/examine.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |         try! (
[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/examine.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 | /             stderr! (
[INFO] [stdout] 69 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]    | |__________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | /         stderr! (
[INFO] [stdout] 77 | |             "{}\r\n",
[INFO] [stdout] 78 | |             status);
[INFO] [stdout]    | |____________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 | /             stderr! (
[INFO] [stdout] 90 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]    | |__________________________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/misc/stderr.rs:8:38
[INFO] [stdout]    |
[INFO] [stdout] 8  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/output.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 | /         stderr! (
[INFO] [stdout] 95 | |             "{}\r\n",
[INFO] [stdout] 96 | |             message);
[INFO] [stdout]    | |_____________________- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:8:38
[INFO] [stdout]     |
[INFO] [stdout] 8   |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/output.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 | /             stderr! (
[INFO] [stdout] 101 | |                 "{}\r\n",
[INFO] [stdout] 102 | |                 self.status.as_ref ().unwrap ());
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:8:38
[INFO] [stdout]     |
[INFO] [stdout] 8   |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/output.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 | /             stderr! (
[INFO] [stdout] 115 | |                 "\r\x1b[A\x1b[K");
[INFO] [stdout]     | |__________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     in try! (
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/scan.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/misc/stderr.rs:31:38
[INFO] [stdout]     |
[INFO] [stdout] 31  |               &mut ::std::io::stderr () as &mut ::std::io::Write,
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::io::Write)`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/scan.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 | /             stderrln! (
[INFO] [stdout] 122 | |                 "Ignoring unknown filetype: {:?}: {:?}",
[INFO] [stdout] 123 | |                 file_type,
[INFO] [stdout] 124 | |                 entry.path ());
[INFO] [stdout]     | |_______________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scan.rs:175:3
[INFO] [stdout]     |
[INFO] [stdout] 175 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:121:47
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let file_metadata_lists: FileMetadataLists = try! (
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/misc/io.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |         io_error.description ().to_string ()
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/output.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut terminal =
[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: field is never read: `terminal`
[INFO] [stdout]   --> src/output.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     terminal: Option <RawTerminal <Stdout>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "30b6bec2ebe317479a07d6c5d8052cdd43bc331a8432bc9abafbe71c64766588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30b6bec2ebe317479a07d6c5d8052cdd43bc331a8432bc9abafbe71c64766588", kill_on_drop: false }`
[INFO] [stdout] 30b6bec2ebe317479a07d6c5d8052cdd43bc331a8432bc9abafbe71c64766588
