[INFO] cloning repository https://github.com/RCasatta/authenticated_tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RCasatta/authenticated_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fauthenticated_tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fauthenticated_tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d991bcb2e97dc0613539b8ef896d50e601bdbde1 [INFO] checking RCasatta/authenticated_tree against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fauthenticated_tree" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RCasatta/authenticated_tree on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RCasatta/authenticated_tree [INFO] finished tweaking git repo https://github.com/RCasatta/authenticated_tree [INFO] tweaked toml for git repo https://github.com/RCasatta/authenticated_tree written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/RCasatta/authenticated_tree 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" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded integer-encoding v1.0.5 [INFO] [stderr] Downloaded data-encoding v2.1.1 [INFO] [stderr] Downloaded rand v0.5.2 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bf8fcece99f783f1c86d515a7c02fbf70b0413022a25fda022665bb49e154ed9 [INFO] running `Command { std: "docker" "start" "-a" "bf8fcece99f783f1c86d515a7c02fbf70b0413022a25fda022665bb49e154ed9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf8fcece99f783f1c86d515a7c02fbf70b0413022a25fda022665bb49e154ed9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf8fcece99f783f1c86d515a7c02fbf70b0413022a25fda022665bb49e154ed9", kill_on_drop: false }` [INFO] [stdout] bf8fcece99f783f1c86d515a7c02fbf70b0413022a25fda022665bb49e154ed9 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6e846988d265abd2c83152bf0a0e7af43bacb00839ba3565771b3449eb637242 [INFO] running `Command { std: "docker" "start" "-a" "6e846988d265abd2c83152bf0a0e7af43bacb00839ba3565771b3449eb637242", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking rand_core v0.2.1 [INFO] [stderr] Checking integer-encoding v1.0.5 [INFO] [stderr] Checking data-encoding v2.1.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Checking rand v0.5.2 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Checking authenticated_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:175:21 [INFO] [stdout] | [INFO] [stdout] 175 | let mut map = inner.map.borrow_mut(); [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: method `update` is never used [INFO] [stdout] --> src/main.rs:54:8 [INFO] [stdout] | [INFO] [stdout] 45 | impl InnerNode { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 54 | fn update(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hash` is never used [INFO] [stdout] --> src/main.rs:238:12 [INFO] [stdout] | [INFO] [stdout] 217 | impl Tree { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 238 | pub fn hash(&self) -> Sha256Hash { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:175:21 [INFO] [stdout] | [INFO] [stdout] 175 | let mut map = inner.map.borrow_mut(); [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/main.rs:190:13 [INFO] [stdout] | [INFO] [stdout] 190 | mem::replace(self, new_node); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 190 | let _ = mem::replace(self, new_node); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/main.rs:222:17 [INFO] [stdout] | [INFO] [stdout] 222 | mem::replace(&mut self.root, Some(new_node)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = mem::replace(&mut self.root, Some(new_node)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `update` is never used [INFO] [stdout] --> src/main.rs:54:8 [INFO] [stdout] | [INFO] [stdout] 45 | impl InnerNode { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 54 | fn update(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hash` is never used [INFO] [stdout] --> src/main.rs:238:12 [INFO] [stdout] | [INFO] [stdout] 217 | impl Tree { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 238 | pub fn hash(&self) -> Sha256Hash { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/main.rs:190:13 [INFO] [stdout] | [INFO] [stdout] 190 | mem::replace(self, new_node); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 190 | let _ = mem::replace(self, new_node); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/main.rs:222:17 [INFO] [stdout] | [INFO] [stdout] 222 | mem::replace(&mut self.root, Some(new_node)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = mem::replace(&mut self.root, Some(new_node)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.02s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "6e846988d265abd2c83152bf0a0e7af43bacb00839ba3565771b3449eb637242", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e846988d265abd2c83152bf0a0e7af43bacb00839ba3565771b3449eb637242", kill_on_drop: false }` [INFO] [stdout] 6e846988d265abd2c83152bf0a0e7af43bacb00839ba3565771b3449eb637242 [INFO] checking RCasatta/authenticated_tree against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRCasatta%2Fauthenticated_tree" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RCasatta/authenticated_tree on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RCasatta/authenticated_tree [INFO] finished tweaking git repo https://github.com/RCasatta/authenticated_tree [INFO] tweaked toml for git repo https://github.com/RCasatta/authenticated_tree written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/RCasatta/authenticated_tree 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" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69398922570c46a4104d8ec02cb9f516177bce11329ecfcc9b39ab794ecbefa3 [INFO] running `Command { std: "docker" "start" "-a" "69398922570c46a4104d8ec02cb9f516177bce11329ecfcc9b39ab794ecbefa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69398922570c46a4104d8ec02cb9f516177bce11329ecfcc9b39ab794ecbefa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69398922570c46a4104d8ec02cb9f516177bce11329ecfcc9b39ab794ecbefa3", kill_on_drop: false }` [INFO] [stdout] 69398922570c46a4104d8ec02cb9f516177bce11329ecfcc9b39ab794ecbefa3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d84bf2ff1c5ac17d5ea625936c2b46b8b4b32e66feea6613a00ab6c4490e024c [INFO] running `Command { std: "docker" "start" "-a" "d84bf2ff1c5ac17d5ea625936c2b46b8b4b32e66feea6613a00ab6c4490e024c", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking rand_core v0.2.1 [INFO] [stderr] Checking integer-encoding v1.0.5 [INFO] [stderr] Checking data-encoding v2.1.1 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/aa7c6ba69acce8b10a275eabfe6157ea72c8b599/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Checking rand v0.5.2 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d84bf2ff1c5ac17d5ea625936c2b46b8b4b32e66feea6613a00ab6c4490e024c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d84bf2ff1c5ac17d5ea625936c2b46b8b4b32e66feea6613a00ab6c4490e024c", kill_on_drop: false }` [INFO] [stdout] d84bf2ff1c5ac17d5ea625936c2b46b8b4b32e66feea6613a00ab6c4490e024c