[INFO] fetching crate flot 0.1.3...
[INFO] checking flot-0.1.3 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate flot 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate flot 0.1.3 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flot 0.1.3
[INFO] finished tweaking crates.io crate flot 0.1.3
[INFO] tweaked toml for crates.io crate flot 0.1.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 11e99ee7b1470527d1167a877f351e5ec31b80e23916c4512d5d8f494b5a39bd
[INFO] running `Command { std: "docker" "start" "-a" "11e99ee7b1470527d1167a877f351e5ec31b80e23916c4512d5d8f494b5a39bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11e99ee7b1470527d1167a877f351e5ec31b80e23916c4512d5d8f494b5a39bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e99ee7b1470527d1167a877f351e5ec31b80e23916c4512d5d8f494b5a39bd", kill_on_drop: false }`
[INFO] [stdout] 11e99ee7b1470527d1167a877f351e5ec31b80e23916c4512d5d8f494b5a39bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe22d96b9b51649efc351c48295be9ed8020665d7a7fc8e4aa7efac35256b44e
[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" "fe22d96b9b51649efc351c48295be9ed8020665d7a7fc8e4aa7efac35256b44e", kill_on_drop: false }`
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking flot v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:133:49
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn zip<'a,I1,I2,T1,T2>(x: I1, y: I2) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:142:41
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn to_f64 <'a,I,T1,T2>(x: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:34
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn valr<'a,I,T>(y: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:162:42
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn mapr<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:171:42
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn mapv<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:713:42
[INFO] [stdout]     |
[INFO] [stdout] 713 |     fn render_placeholder(&self, f: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:727:36
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn render_script(self, f: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:133:49
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn zip<'a,I1,I2,T1,T2>(x: I1, y: I2) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:142:41
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn to_f64 <'a,I,T1,T2>(x: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:34
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn valr<'a,I,T>(y: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:162:42
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn mapr<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:171:42
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn mapv<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:713:42
[INFO] [stdout]     |
[INFO] [stdout] 713 |     fn render_placeholder(&self, f: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:727:36
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn render_script(self, f: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:504:17
[INFO] [stdout]     |
[INFO] [stdout] 504 |             let mut arr = self.markings();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:504:17
[INFO] [stdout]     |
[INFO] [stdout] 504 |             let mut arr = self.markings();
[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: `symbols`
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     symbols: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `symbols`
[INFO] [stdout]    --> src/lib.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     symbols: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "fe22d96b9b51649efc351c48295be9ed8020665d7a7fc8e4aa7efac35256b44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe22d96b9b51649efc351c48295be9ed8020665d7a7fc8e4aa7efac35256b44e", kill_on_drop: false }`
[INFO] [stdout] fe22d96b9b51649efc351c48295be9ed8020665d7a7fc8e4aa7efac35256b44e