[INFO] fetching crate memenhancer 0.1.0...
[INFO] checking memenhancer-0.1.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate memenhancer 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate memenhancer 0.1.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memenhancer 0.1.0
[INFO] finished tweaking crates.io crate memenhancer 0.1.0
[INFO] tweaked toml for crates.io crate memenhancer 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding handlebars v0.21.1 (latest: v5.1.2)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding pest v0.3.3 (latest: v2.7.10)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding svg v0.5.12 (latest: v0.17.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded handlebars v0.21.1
[INFO] [stderr]   Downloaded svg v0.5.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df3c176c3f38faa78c4b1d36f63ec12f826f8933d65f86bce74a5cb8bc59166e
[INFO] running `Command { std: "docker" "start" "-a" "df3c176c3f38faa78c4b1d36f63ec12f826f8933d65f86bce74a5cb8bc59166e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df3c176c3f38faa78c4b1d36f63ec12f826f8933d65f86bce74a5cb8bc59166e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3c176c3f38faa78c4b1d36f63ec12f826f8933d65f86bce74a5cb8bc59166e", kill_on_drop: false }`
[INFO] [stdout] df3c176c3f38faa78c4b1d36f63ec12f826f8933d65f86bce74a5cb8bc59166e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4eb25b66de879ce89afccd06e804d6851915a92c3cc52209f37c53aff23bfdd
[INFO] running `Command { std: "docker" "start" "-a" "f4eb25b66de879ce89afccd06e804d6851915a92c3cc52209f37c53aff23bfdd", kill_on_drop: false }`
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]     Checking handlebars v0.21.1
[INFO] [stderr]     Checking memenhancer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:337:58
[INFO] [stdout]     |
[INFO] [stdout] 337 | fn to_svg_lines(s: &str, settings: &Settings) -> Vec<Box<Node>> {
[INFO] [stdout]     |                                                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 337 | fn to_svg_lines(s: &str, settings: &Settings) -> Vec<Box<dyn Node>> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:349:72
[INFO] [stdout]     |
[INFO] [stdout] 349 | fn get_svg_elements(y: usize, s: &str, settings: &Settings) -> Vec<Box<Node>> {
[INFO] [stdout]     |                                                                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 349 | fn get_svg_elements(y: usize, s: &str, settings: &Settings) -> Vec<Box<dyn Node>> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:355:81
[INFO] [stdout]     |
[INFO] [stdout] 355 | pub fn get_meme_svg(input: &str, text_width: f32, text_height: f32) -> (Vec<Box<Node>>, String) {
[INFO] [stdout]     |                                                                                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 355 | pub fn get_meme_svg(input: &str, text_width: f32, text_height: f32) -> (Vec<Box<dyn Node>>, String) {
[INFO] [stdout]     |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:381:90
[INFO] [stdout]     |
[INFO] [stdout] 381 | fn line_to_svg_with_excess_str(y: usize, s: &str, settings:&Settings) -> Option<(Vec<Box<Node>>, String)>{
[INFO] [stdout]     |                                                                                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 381 | fn line_to_svg_with_excess_str(y: usize, s: &str, settings:&Settings) -> Option<(Vec<Box<dyn Node>>, String)>{
[INFO] [stdout]     |                                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:58:74
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn get_svg_elements(&self, y: usize, settings: &Settings) -> Vec<Box<Node>>{
[INFO] [stdout]    |                                                                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn get_svg_elements(&self, y: usize, settings: &Settings) -> Vec<Box<dyn Node>>{
[INFO] [stdout]    |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:105:74
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn get_svg_elements(&self, y: usize, settings: &Settings) -> Vec<Box<Node>>{
[INFO] [stdout]     |                                                                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn get_svg_elements(&self, y: usize, settings: &Settings) -> Vec<Box<dyn Node>>{
[INFO] [stdout]     |                                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:175:73
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_svg_elements(&self, y: usize, settings:&Settings) -> Vec<Box<Node>> {
[INFO] [stdout]     |                                                                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_svg_elements(&self, y: usize, settings:&Settings) -> Vec<Box<dyn Node>> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:59:29
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut svg:Vec<Box<Node>> = vec![];
[INFO] [stdout]    |                             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut svg:Vec<Box<dyn Node>> = vec![];
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:106:34
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut elements:Vec<Box<Node>> = vec![];
[INFO] [stdout]     |                                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let mut elements:Vec<Box<dyn Node>> = vec![];
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:176:35
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let mut elements: Vec<Box<Node>> = vec![];
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let mut elements: Vec<Box<dyn Node>> = vec![];
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:360:34
[INFO] [stdout]     |
[INFO] [stdout] 360 |     let mut svg_elements:Vec<Box<Node + 'static>> = vec![];
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 360 |     let mut svg_elements:Vec<Box<dyn Node + 'static>> = vec![];
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `start_position` and `end_position` are never read
[INFO] [stdout]   --> src/lib.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct Meme{
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 92 |     /// location to the left until a space is encountered
[INFO] [stdout] 93 |     start_position: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     end_position: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Meme` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `start_position` and `end_position` are never read
[INFO] [stdout]    --> src/lib.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | struct Head{
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] 158 |     // character position
[INFO] [stdout] 159 |     start_position: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     end_position: usize
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Head` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memenhancer` (lib) due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f4eb25b66de879ce89afccd06e804d6851915a92c3cc52209f37c53aff23bfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4eb25b66de879ce89afccd06e804d6851915a92c3cc52209f37c53aff23bfdd", kill_on_drop: false }`
[INFO] [stdout] f4eb25b66de879ce89afccd06e804d6851915a92c3cc52209f37c53aff23bfdd
