[INFO] fetching crate c4 0.1.0...
[INFO] checking c4-0.1.0 against beta for pr-78714
[INFO] extracting crate c4 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate c4 0.1.0 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 c4 0.1.0
[INFO] finished tweaking crates.io crate c4 0.1.0
[INFO] tweaked toml for crates.io crate c4 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80035d064bb0bd39459cce6195c82fae89cca9406f1b8508c6690fa15712bc07
[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" "80035d064bb0bd39459cce6195c82fae89cca9406f1b8508c6690fa15712bc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80035d064bb0bd39459cce6195c82fae89cca9406f1b8508c6690fa15712bc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80035d064bb0bd39459cce6195c82fae89cca9406f1b8508c6690fa15712bc07", kill_on_drop: false }`
[INFO] [stdout] 80035d064bb0bd39459cce6195c82fae89cca9406f1b8508c6690fa15712bc07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc422daf8c0f521cd338f39431808acc08b06edef20f5589d3bf03af47514e5d
[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" "dc422daf8c0f521cd338f39431808acc08b06edef20f5589d3bf03af47514e5d", kill_on_drop: false }`
[INFO] [stderr]     Checking c4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         try!(write ! (
[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/parser/generated.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             try!(write ! ( fmt , "EOF" ));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try!(write ! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             try!(write ! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 try!(write ! ( fmt , ", `{}`" , escape_default ( elem ) ));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     'a' ...'z' => Matched(next, ()),
[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/parser/generated.rs:137:41
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:54
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:67
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:49
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:62
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:174:45
[INFO] [stdout]     |
[INFO] [stdout] 174 | ...                   ...'9' => Matched(next, ()),
[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/lib.rs:23:42
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn within(&self, namespace: &str) -> Accessor;
[INFO] [stdout]    |                                          ^^^^^^^^ help: use `dyn`: `dyn Accessor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         try!(write ! (
[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/parser/generated.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             try!(write ! ( fmt , "EOF" ));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             try!(write ! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             try!(write ! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/parser/generated.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 try!(write ! ( fmt , ", `{}`" , escape_default ( elem ) ));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                     'a' ...'z' => Matched(next, ()),
[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/parser/generated.rs:137:41
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:54
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:137:67
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   'a' ...'z' | 'A' ...'Z' | '0' ...'9' =>
[INFO] [stdout]     |                                                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:49
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:173:62
[INFO] [stdout]     |
[INFO] [stdout] 173 | ...                   'a' ...'z' | 'A' ...'Z' | '0'
[INFO] [stdout]     |                                        ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parser/generated.rs:174:45
[INFO] [stdout]     |
[INFO] [stdout] 174 | ...                   ...'9' => Matched(next, ()),
[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/lib.rs:23:42
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn within(&self, namespace: &str) -> Accessor;
[INFO] [stdout]    |                                          ^^^^^^^^ help: use `dyn`: `dyn Accessor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> src/parser/mod.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vec`
[INFO] [stdout]   --> src/parser/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn from_vec(v: Vec<String>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/parser/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/parser/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn from_string(s: &String) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Property`
[INFO] [stdout]   --> src/parser/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Property {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(_id: String, _value: Value) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rule`
[INFO] [stdout]   --> src/parser/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Rule {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Selector`
[INFO] [stdout]   --> src/parser/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Selector(Vec<Rule>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]  --> src/parser/mod.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Value {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vec`
[INFO] [stdout]   --> src/parser/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn from_vec(v: Vec<String>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/parser/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> src/parser/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn from_string(s: &String) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Property`
[INFO] [stdout]   --> src/parser/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Property {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(_id: String, _value: Value) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rule`
[INFO] [stdout]   --> src/parser/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Rule {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Selector`
[INFO] [stdout]   --> src/parser/mod.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Selector(Vec<Rule>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc422daf8c0f521cd338f39431808acc08b06edef20f5589d3bf03af47514e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc422daf8c0f521cd338f39431808acc08b06edef20f5589d3bf03af47514e5d", kill_on_drop: false }`
[INFO] [stdout] dc422daf8c0f521cd338f39431808acc08b06edef20f5589d3bf03af47514e5d