[INFO] crate json-codec 0.5.0 is already in cache
[INFO] testing json-codec-0.5.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate json-codec 0.5.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate json-codec 0.5.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json-codec 0.5.0
[INFO] finished tweaking crates.io crate json-codec 0.5.0
[INFO] tweaked toml for crates.io crate json-codec 0.5.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17c0f71e4daa79bf151419e412d11615c4ebeedfb1ac09f9d9cc87a8a158e020
[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" "17c0f71e4daa79bf151419e412d11615c4ebeedfb1ac09f9d9cc87a8a158e020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17c0f71e4daa79bf151419e412d11615c4ebeedfb1ac09f9d9cc87a8a158e020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c0f71e4daa79bf151419e412d11615c4ebeedfb1ac09f9d9cc87a8a158e020", kill_on_drop: false }`
[INFO] [stdout] 17c0f71e4daa79bf151419e412d11615c4ebeedfb1ac09f9d9cc87a8a158e020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42e603c9404ae562d9f59ad51f8fd11cb420210e2da8e4dd093f8a55a9e1fafc
[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" "42e603c9404ae562d9f59ad51f8fd11cb420210e2da8e4dd093f8a55a9e1fafc", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-codec v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/utf8.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:325:17
[INFO] [stdout]     |
[INFO] [stdout] 325 |             '0' ... '9' | '-' => self.f64().map(Json::Number),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:370:17
[INFO] [stdout]     |
[INFO] [stdout] 370 |             '0' ... '9' | '-' => self.f64().map(|_| ()),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:405:20
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 '0'...'9'|'.'|'e'|'E'|'+'|'-' => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:490:41
[INFO] [stdout]     |
[INFO] [stdout] 490 | ...                   hi @ 0xD800 ... 0xDBFF => {
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:499:36
[INFO] [stdout]     |
[INFO] [stdout] 499 | ...                   0xDC00 ... 0xDFFF => return Err(DecodeError::UnicodeEscape),
[INFO] [stdout]     |                              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:733:15
[INFO] [stdout]     |
[INFO] [stdout] 733 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:769:32
[INFO] [stdout]     |
[INFO] [stdout] 769 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:304:15
[INFO] [stdout]     |
[INFO] [stdout] 304 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:328:32
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |             0x0 ... 0x9 => b'0' + x,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             0xA ... 0xF => b'A' + x - 0xA,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:404:27
[INFO] [stdout]     |
[INFO] [stdout] 404 |             Some(x@'\x00' ... '\x1F') | Some(x@'\x7F') => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "42e603c9404ae562d9f59ad51f8fd11cb420210e2da8e4dd093f8a55a9e1fafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e603c9404ae562d9f59ad51f8fd11cb420210e2da8e4dd093f8a55a9e1fafc", kill_on_drop: false }`
[INFO] [stdout] 42e603c9404ae562d9f59ad51f8fd11cb420210e2da8e4dd093f8a55a9e1fafc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4184754e7553f5ff2b2e1883bb8e760451748ea8d17b9834ed0437053dc899d7
[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" "4184754e7553f5ff2b2e1883bb8e760451748ea8d17b9834ed0437053dc899d7", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/utf8.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:325:17
[INFO] [stdout]     |
[INFO] [stdout] 325 |             '0' ... '9' | '-' => self.f64().map(Json::Number),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:370:17
[INFO] [stdout]     |
[INFO] [stdout] 370 |             '0' ... '9' | '-' => self.f64().map(|_| ()),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:405:20
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 '0'...'9'|'.'|'e'|'E'|'+'|'-' => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:490:41
[INFO] [stdout]     |
[INFO] [stdout] 490 | ...                   hi @ 0xD800 ... 0xDBFF => {
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:499:36
[INFO] [stdout]     |
[INFO] [stdout] 499 | ...                   0xDC00 ... 0xDFFF => return Err(DecodeError::UnicodeEscape),
[INFO] [stdout]     |                              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:733:15
[INFO] [stdout]     |
[INFO] [stdout] 733 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:769:32
[INFO] [stdout]     |
[INFO] [stdout] 769 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:304:15
[INFO] [stdout]     |
[INFO] [stdout] 304 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:328:32
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |             0x0 ... 0x9 => b'0' + x,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             0xA ... 0xF => b'A' + x - 0xA,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:404:27
[INFO] [stdout]     |
[INFO] [stdout] 404 |             Some(x@'\x00' ... '\x1F') | Some(x@'\x7F') => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling json-codec v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/utf8.rs:149:32
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:325:17
[INFO] [stdout]     |
[INFO] [stdout] 325 |             '0' ... '9' | '-' => self.f64().map(Json::Number),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:370:17
[INFO] [stdout]     |
[INFO] [stdout] 370 |             '0' ... '9' | '-' => self.f64().map(|_| ()),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:405:20
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 '0'...'9'|'.'|'e'|'E'|'+'|'-' => true,
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:490:41
[INFO] [stdout]     |
[INFO] [stdout] 490 | ...                   hi @ 0xD800 ... 0xDBFF => {
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/decoder.rs:499:36
[INFO] [stdout]     |
[INFO] [stdout] 499 | ...                   0xDC00 ... 0xDFFF => return Err(DecodeError::UnicodeEscape),
[INFO] [stdout]     |                              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:733:15
[INFO] [stdout]     |
[INFO] [stdout] 733 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decoder.rs:769:32
[INFO] [stdout]     |
[INFO] [stdout] 769 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:304:15
[INFO] [stdout]     |
[INFO] [stdout] 304 |     Other(Box<Error + Send + Sync>)
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/encoder.rs:328:32
[INFO] [stdout]     |
[INFO] [stdout] 328 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |             0x0 ... 0x9 => b'0' + x,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             0xA ... 0xF => b'A' + x - 0xA,
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/encoder.rs:404:27
[INFO] [stdout]     |
[INFO] [stdout] 404 |             Some(x@'\x00' ... '\x1F') | Some(x@'\x7F') => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_range` found for mutable reference `&mut G` in the current scope
[INFO] [stdout]    --> tests/properties.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |     match g.gen_range(1, 8) {
[INFO] [stdout]     |             ^^^^^^^^^ method not found in `&mut G`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 4   | use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen` found for mutable reference `&mut G` in the current scope
[INFO] [stdout]    --> tests/properties.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |         3 => Json::Number(g.gen()),
[INFO] [stdout]     |                             ^^^ method not found in `&mut G`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 4   | use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_range` found for mutable reference `&mut G` in the current scope
[INFO] [stdout]    --> tests/properties.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let     len = g.gen_range(0, 64);
[INFO] [stdout]     |                     ^^^^^^^^^ method not found in `&mut G`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 4   | use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `gen_range` found for mutable reference `&mut G` in the current scope
[INFO] [stdout]    --> tests/properties.rs:163:21
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let     len = g.gen_range(0, 64);
[INFO] [stdout]     |                     ^^^^^^^^^ method not found in `&mut G`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 4   | use rand::Rng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json-codec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4184754e7553f5ff2b2e1883bb8e760451748ea8d17b9834ed0437053dc899d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4184754e7553f5ff2b2e1883bb8e760451748ea8d17b9834ed0437053dc899d7", kill_on_drop: false }`
[INFO] [stdout] 4184754e7553f5ff2b2e1883bb8e760451748ea8d17b9834ed0437053dc899d7