[INFO] fetching crate source-span 2.7.0...
[INFO] testing source-span-2.7.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate source-span 2.7.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate source-span 2.7.0
[INFO] finished tweaking crates.io crate source-span 2.7.0
[INFO] tweaked toml for crates.io crate source-span 2.7.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate source-span 2.7.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate source-span 2.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396
[INFO] running `Command { std: "docker" "start" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling source-span v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             line: usize::max_value(),
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |             column: usize::max_value(),
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:26
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:63
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 172 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:174:35
[INFO] [stdout]     |
[INFO] [stdout] 174 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:26
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:63
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:186:33
[INFO] [stdout]     |
[INFO] [stdout] 186 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:399:20
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 column: usize::max_value() - 1,
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:403:20
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 column: usize::max_value(),
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<E, I, M> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:213:19
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-decode v1.0.1
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             line: usize::max_value(),
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |             column: usize::max_value(),
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:26
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:63
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 172 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:174:35
[INFO] [stdout]     |
[INFO] [stdout] 174 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:26
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:63
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:186:33
[INFO] [stdout]     |
[INFO] [stdout] 186 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:399:20
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 column: usize::max_value() - 1,
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:403:20
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 column: usize::max_value(),
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<E, I, M> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:213:19
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling source-span v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `string` and `span` are never read
[INFO] [stdout]  --> examples/formatting_challenge.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Token {
[INFO] [stdout]   |            ----- fields in this struct
[INFO] [stdout] 8 |     string: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 9 |     span: Span,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             line: usize::max_value(),
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/position.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |             column: usize::max_value(),
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:26
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:170:63
[INFO] [stdout]     |
[INFO] [stdout] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 172 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:174:35
[INFO] [stdout]     |
[INFO] [stdout] 174 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:26
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:184:63
[INFO] [stdout]     |
[INFO] [stdout] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stdout]     |                                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:186:33
[INFO] [stdout]     |
[INFO] [stdout] 186 |         } else if self.line == usize::max_value() {
[INFO] [stdout]     |                                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:188:35
[INFO] [stdout]     |
[INFO] [stdout] 188 |         } else if self.column == usize::max_value() {
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:247:41
[INFO] [stdout]     |
[INFO] [stdout] 247 |             format!("{:?}", Position::new(usize::max_value(), 3)),
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:251:44
[INFO] [stdout]     |
[INFO] [stdout] 251 |             format!("{:?}", Position::new(3, usize::max_value())),
[INFO] [stdout]     |                                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:257:26
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 Position::new(usize::max_value(), usize::max_value())
[INFO] [stdout]     |                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/position.rs:257:46
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 Position::new(usize::max_value(), usize::max_value())
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:399:20
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 column: usize::max_value() - 1,
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/lib.rs:403:20
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 column: usize::max_value(),
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:197:14
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<E, I, M> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter(&self) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:213:19
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/buffer/lazy.rs:232:19
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<E, I, M> {
[INFO] [stdout]     |                      ^^^^^                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/position.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |             line: usize::max_value(),
[INFO] [stderr]    |                          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/position.rs:53:19
[INFO] [stderr]    |
[INFO] [stderr] 53 |             column: usize::max_value(),
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:170:26
[INFO] [stderr]     |
[INFO] [stderr] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stderr]     |                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:170:63
[INFO] [stderr]     |
[INFO] [stderr] 170 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stderr]     |                                                                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:172:33
[INFO] [stderr]     |
[INFO] [stderr] 172 |         } else if self.line == usize::max_value() {
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:174:35
[INFO] [stderr]     |
[INFO] [stderr] 174 |         } else if self.column == usize::max_value() {
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:184:26
[INFO] [stderr]     |
[INFO] [stderr] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stderr]     |                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:184:63
[INFO] [stderr]     |
[INFO] [stderr] 184 |         if self.line == usize::max_value() && self.column == usize::max_value() {
[INFO] [stderr]     |                                                                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:186:33
[INFO] [stderr]     |
[INFO] [stderr] 186 |         } else if self.line == usize::max_value() {
[INFO] [stderr]     |                                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:188:35
[INFO] [stderr]     |
[INFO] [stderr] 188 |         } else if self.column == usize::max_value() {
[INFO] [stderr]     |                                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/lib.rs:399:20
[INFO] [stderr]     |
[INFO] [stderr] 399 |                 column: usize::max_value() - 1,
[INFO] [stderr]     |                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/lib.rs:403:20
[INFO] [stderr]     |
[INFO] [stderr] 403 |                 column: usize::max_value(),
[INFO] [stderr]     |                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/buffer/lazy.rs:197:14
[INFO] [stderr]     |
[INFO] [stderr] 197 |     pub fn iter(&self) -> Iter<E, I, M> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 197 |     pub fn iter(&self) -> Iter<'_, E, I, M> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/buffer/lazy.rs:213:19
[INFO] [stderr]     |
[INFO] [stderr] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<E, I, M> {
[INFO] [stderr]     |                      ^^^^^                    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 213 |     pub fn iter_from(&self, pos: Position) -> Iter<'_, E, I, M> {
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/buffer/lazy.rs:232:19
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub fn iter_span(&self, span: Span) -> Iter<E, I, M> {
[INFO] [stderr]     |                      ^^^^^                 ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub fn iter_span(&self, span: Span) -> Iter<'_, E, I, M> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `source-span` (lib) generated 15 warnings (run `cargo fix --lib -p source-span` to apply 3 suggestions)
[INFO] [stderr] warning: fields `string` and `span` are never read
[INFO] [stderr]  --> examples/formatting_challenge.rs:8:2
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Token {
[INFO] [stderr]   |            ----- fields in this struct
[INFO] [stderr] 8 |     string: String,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 9 |     span: Span,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:247:41
[INFO] [stderr]     |
[INFO] [stderr] 247 |             format!("{:?}", Position::new(usize::max_value(), 3)),
[INFO] [stderr]     |                                                  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:251:44
[INFO] [stderr]     |
[INFO] [stderr] 251 |             format!("{:?}", Position::new(3, usize::max_value())),
[INFO] [stderr]     |                                                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:257:26
[INFO] [stderr]     |
[INFO] [stderr] 257 |                 Position::new(usize::max_value(), usize::max_value())
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/position.rs:257:46
[INFO] [stderr]     |
[INFO] [stderr] 257 |                 Position::new(usize::max_value(), usize::max_value())
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `source-span` (example "formatting_challenge") generated 1 warning
[INFO] [stderr] warning: `source-span` (lib test) generated 19 warnings (15 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/source-span/ed8e33b337ecabe0/out/source_span-ed8e33b337ecabe0)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test layout::tests::get_byte_index3 ... ok
[INFO] [stdout] test layout::tests::get_byte_index2 ... ok
[INFO] [stdout] test layout::tests::get_byte_index1 ... ok
[INFO] [stdout] test layout::tests::get_byte_index_out_of_bounds1 ... ok
[INFO] [stdout] test layout::tests::get_span_slice3 ... ok
[INFO] [stdout] test position::tests::test_debug ... ok
[INFO] [stdout] test layout::tests::get_span_slice5 ... ok
[INFO] [stdout] test layout::tests::get_byte_index_out_of_bounds2 ... ok
[INFO] [stdout] test position::tests::test_ord_position ... ok
[INFO] [stdout] test layout::tests::get_span_slice4 ... ok
[INFO] [stdout] test tests::test_display_span ... ok
[INFO] [stdout] test layout::tests::get_span_slice1 ... ok
[INFO] [stdout] test layout::tests::get_span_slice2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests source_span
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/position.rs - position::Position::end (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - Span (line 154) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::Formatter::render (line 934) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396", kill_on_drop: false }`
[INFO] [stdout] cd061759b4358fc4bb2346c95f003af305169ae6be2b5ee151bcc59208ae1396
