[INFO] fetching crate crostab 0.0.2...
[INFO] testing crostab-0.0.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate crostab 0.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate crostab 0.0.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crostab 0.0.2
[INFO] finished tweaking crates.io crate crostab 0.0.2
[INFO] tweaked toml for crates.io crate crostab 0.0.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] d7a5619760c88d4db0232d5799d81e41b01cb692126dce683e68ca793f1100b3
[INFO] running `Command { std: "docker" "start" "-a" "d7a5619760c88d4db0232d5799d81e41b01cb692126dce683e68ca793f1100b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7a5619760c88d4db0232d5799d81e41b01cb692126dce683e68ca793f1100b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7a5619760c88d4db0232d5799d81e41b01cb692126dce683e68ca793f1100b3", kill_on_drop: false }`
[INFO] [stdout] d7a5619760c88d4db0232d5799d81e41b01cb692126dce683e68ca793f1100b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a29b43077c0996c06babd1e791fee931df847799962565a48eac45e142eaebc
[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" "0a29b43077c0996c06babd1e791fee931df847799962565a48eac45e142eaebc", kill_on_drop: false }`
[INFO] [stderr]    Compiling veho v0.0.19
[INFO] [stderr]    Compiling crostab v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Nul`
[INFO] [stdout]  --> src/types/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Nul,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boo`
[INFO] [stdout]  --> src/types/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Boo(bool),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Num`
[INFO] [stdout]  --> src/types/value.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Num(i32),
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/types/value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Arr`
[INFO] [stdout]   --> src/types/value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Arr(Vec<Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Obj`
[INFO] [stdout]   --> src/types/value.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Obj(HashMap<String, Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]  --> src/table/table.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     head: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]  --> src/table/table.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     rows: Vec<Vec<T>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]   --> src/table/table.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/table/table.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn width(&self) -> usize { (&self.rows).len() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coin`
[INFO] [stdout]   --> src/table/table.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]   --> src/table/table.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn cell(&self, side_index: usize, head_label: &str) -> Option<&T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]  --> src/crostab/crostab.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     head: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side`
[INFO] [stdout]  --> src/crostab/crostab.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     side: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]  --> src/crostab/crostab.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     rows: Vec<Vec<T>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]   --> src/crostab/crostab.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/crostab/crostab.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn width(&self) -> usize { (&self.side).len() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `roin`
[INFO] [stdout]   --> src/crostab/crostab.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn roin(&self, side: &str) -> Option<usize> { index_of(&self.side, &side.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coin`
[INFO] [stdout]   --> src/crostab/crostab.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]   --> src/crostab/crostab.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn cell(&self, side: &str, head: &str) -> Option<&T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "0a29b43077c0996c06babd1e791fee931df847799962565a48eac45e142eaebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a29b43077c0996c06babd1e791fee931df847799962565a48eac45e142eaebc", kill_on_drop: false }`
[INFO] [stdout] 0a29b43077c0996c06babd1e791fee931df847799962565a48eac45e142eaebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44af1f9706a38e0b54f56c705f7c1e91d5717deb6129d629200d8acc39e84726
[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" "44af1f9706a38e0b54f56c705f7c1e91d5717deb6129d629200d8acc39e84726", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stdout] warning: variant is never constructed: `Nul`
[INFO] [stdout]  --> src/types/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Nul,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stdout] warning: variant is never constructed: `Boo`
[INFO] [stdout]  --> src/types/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Boo(bool),
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Num`
[INFO] [stdout]  --> src/types/value.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Num(i32),
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/types/value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Arr`
[INFO] [stdout]   --> src/types/value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Arr(Vec<Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Obj`
[INFO] [stdout]   --> src/types/value.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Obj(HashMap<String, Value>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]  --> src/table/table.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     head: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]  --> src/table/table.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     rows: Vec<Vec<T>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]   --> src/table/table.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/table/table.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn width(&self) -> usize { (&self.rows).len() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coin`
[INFO] [stdout]   --> src/table/table.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]   --> src/table/table.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn cell(&self, side_index: usize, head_label: &str) -> Option<&T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]  --> src/crostab/crostab.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     head: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side`
[INFO] [stdout]  --> src/crostab/crostab.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     side: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `rows`
[INFO] [stdout]  --> src/crostab/crostab.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     rows: Vec<Vec<T>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `height`
[INFO] [stdout]   --> src/crostab/crostab.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/crostab/crostab.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn width(&self) -> usize { (&self.side).len() }
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `roin`
[INFO] [stdout]   --> src/crostab/crostab.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn roin(&self, side: &str) -> Option<usize> { index_of(&self.side, &side.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coin`
[INFO] [stdout]   --> src/crostab/crostab.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]   --> src/crostab/crostab.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn cell(&self, side: &str, head: &str) -> Option<&T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling texting v0.0.5
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling aryth v0.0.9
[INFO] [stderr]    Compiling palett v0.0.6
[INFO] [stderr]    Compiling spare v0.0.1
[INFO] [stderr]    Compiling crostab v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Number`, `Value`
[INFO] [stdout]  --> tests/any/json_basic_test.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde_json::{json, Number, Value};
[INFO] [stdout]   |                        ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::crostab::Crostab`
[INFO] [stdout]   --> src/table/table.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use crate::crostab::Crostab;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `side_label`
[INFO] [stdout]   --> src/table/table.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let side_label = "1984";
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_side_label`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nul`
[INFO] [stdout]  --> src/types/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Nul,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Str`
[INFO] [stdout]   --> src/types/value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Str(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 58.64s
[INFO] running `Command { std: "docker" "inspect" "44af1f9706a38e0b54f56c705f7c1e91d5717deb6129d629200d8acc39e84726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44af1f9706a38e0b54f56c705f7c1e91d5717deb6129d629200d8acc39e84726", kill_on_drop: false }`
[INFO] [stdout] 44af1f9706a38e0b54f56c705f7c1e91d5717deb6129d629200d8acc39e84726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c59e3298b0c94662c6f4ed7efdb51d3733002383170b40902bd7f0b993a2e65d
[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" "c59e3298b0c94662c6f4ed7efdb51d3733002383170b40902bd7f0b993a2e65d", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Nul`
[INFO] [stderr]  --> src/types/value.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Nul,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boo`
[INFO] [stderr]  --> src/types/value.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Boo(bool),
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Num`
[INFO] [stderr]  --> src/types/value.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Num(i32),
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Str`
[INFO] [stderr]   --> src/types/value.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Str(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Arr`
[INFO] [stderr]   --> src/types/value.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Arr(Vec<Value>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Obj`
[INFO] [stderr]   --> src/types/value.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Obj(HashMap<String, Value>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `head`
[INFO] [stderr]  --> src/table/table.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     head: Vec<String>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rows`
[INFO] [stderr]  --> src/table/table.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     rows: Vec<Vec<T>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `height`
[INFO] [stderr]   --> src/table/table.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `width`
[INFO] [stderr]   --> src/table/table.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn width(&self) -> usize { (&self.rows).len() }
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `coin`
[INFO] [stderr]   --> src/table/table.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cell`
[INFO] [stderr]   --> src/table/table.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn cell(&self, side_index: usize, head_label: &str) -> Option<&T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `head`
[INFO] [stderr]  --> src/crostab/crostab.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     head: Vec<String>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `side`
[INFO] [stderr]  --> src/crostab/crostab.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     side: Vec<String>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rows`
[INFO] [stderr]  --> src/crostab/crostab.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     rows: Vec<Vec<T>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `height`
[INFO] [stderr]   --> src/crostab/crostab.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn height(&self) -> usize { (&self.head).len() }
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `width`
[INFO] [stderr]   --> src/crostab/crostab.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn width(&self) -> usize { (&self.side).len() }
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `roin`
[INFO] [stderr]   --> src/crostab/crostab.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn roin(&self, side: &str) -> Option<usize> { index_of(&self.side, &side.to_string()) }
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `coin`
[INFO] [stderr]   --> src/crostab/crostab.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn coin(&self, head: &str) -> Option<usize> { index_of(&self.head, &head.to_string()) }
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cell`
[INFO] [stderr]   --> src/crostab/crostab.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn cell(&self, side: &str, head: &str) -> Option<&T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `crostab` (lib) generated 20 warnings
[INFO] [stderr] warning: unused imports: `Number`, `Value`
[INFO] [stderr]  --> tests/any/json_basic_test.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde_json::{json, Number, Value};
[INFO] [stderr]   |                        ^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::crostab::Crostab`
[INFO] [stderr]   --> src/table/table.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     use crate::crostab::Crostab;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `side_label`
[INFO] [stderr]   --> src/table/table.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let side_label = "1984";
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_side_label`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `crostab` (test "integration_tests") generated 1 warning
[INFO] [stdout] running 3 tests
[INFO] [stderr] warning: `crostab` (lib test) generated 4 warnings (2 duplicates)
[INFO] [stdout] test types::value::tests::test ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] test table::table::tests::test_crostab_simplified ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crostab-43072a7e5dddf7a4)
[INFO] [stdout] test crostab::crostab::tests::test_crostab_simplified ... ok
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-3148a67c49ac162a)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test any::json_basic_test::value_array ... ok
[INFO] [stdout] test any::serde_basic_test::serde_basic_tests::serde_basic_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crostab
[INFO] [stderr] error[E0659]: `crostab` is ambiguous
[INFO] [stderr]  --> /opt/rustwide/workdir/src/crostab/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub use crostab::Crostab;
[INFO] [stderr]   |         ^^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: ambiguous because of multiple potential import sources
[INFO] [stderr]   = note: `crostab` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::crostab` to refer to this crate unambiguously
[INFO] [stderr] note: `crostab` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/crostab/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod crostab;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   = help: use `self::crostab` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error[E0659]: `crostab` is ambiguous
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub use crostab::Crostab;
[INFO] [stderr]   |         ^^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: ambiguous because of multiple potential import sources
[INFO] [stderr]   = note: `crostab` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::crostab` to refer to this crate unambiguously
[INFO] [stderr] note: `crostab` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | mod crostab;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::crostab` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "c59e3298b0c94662c6f4ed7efdb51d3733002383170b40902bd7f0b993a2e65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59e3298b0c94662c6f4ed7efdb51d3733002383170b40902bd7f0b993a2e65d", kill_on_drop: false }`
[INFO] [stdout] c59e3298b0c94662c6f4ed7efdb51d3733002383170b40902bd7f0b993a2e65d