[INFO] cloning repository https://github.com/Guaschman/hm-interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Guaschman/hm-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuaschman%2Fhm-interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuaschman%2Fhm-interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4a94ae4fa5d4dd7c3849dc6d9075a3e1748a973d [INFO] checking Guaschman/hm-interpreter against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuaschman%2Fhm-interpreter" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Guaschman/hm-interpreter 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/Guaschman/hm-interpreter [INFO] finished tweaking git repo https://github.com/Guaschman/hm-interpreter [INFO] tweaked toml for git repo https://github.com/Guaschman/hm-interpreter written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Guaschman/hm-interpreter 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nom-trace v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 36bdb7befb5792cbaa870ad0fc00891a800255c007f5c400359c31591e257289 [INFO] running `Command { std: "docker" "start" "-a" "36bdb7befb5792cbaa870ad0fc00891a800255c007f5c400359c31591e257289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "36bdb7befb5792cbaa870ad0fc00891a800255c007f5c400359c31591e257289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36bdb7befb5792cbaa870ad0fc00891a800255c007f5c400359c31591e257289", kill_on_drop: false }` [INFO] [stdout] 36bdb7befb5792cbaa870ad0fc00891a800255c007f5c400359c31591e257289 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a8f0923111ec542b207e5ca049213d3e7534401aa8282d550f3e38ccf38d747b [INFO] running `Command { std: "docker" "start" "-a" "a8f0923111ec542b207e5ca049213d3e7534401aa8282d550f3e38ccf38d747b", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling nom v5.1.3 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking nom-trace v0.1.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Checking hm-interpreter v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `extend` and `remove` are never used [INFO] [stdout] --> src/type_checker.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl TypeEnv { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 48 | fn extend(mut self, (v, s): (Var, Scheme)) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn remove(mut self, var: Var) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:100:17 [INFO] [stdout] | [INFO] [stdout] 100 | set.union(&a1.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 100 | let _ = set.union(&a1.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:101:17 [INFO] [stdout] | [INFO] [stdout] 101 | set.union(&a2.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 101 | let _ = set.union(&a2.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:127:17 [INFO] [stdout] | [INFO] [stdout] 127 | set.union(&t.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 127 | let _ = set.union(&t.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Difference` that must be used [INFO] [stdout] --> src/type_checker.rs:128:17 [INFO] [stdout] | [INFO] [stdout] 128 | set.difference(&BTreeSet::from_iter(tv.iter().cloned())); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the difference as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 128 | let _ = set.difference(&BTreeSet::from_iter(tv.iter().cloned())); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `extend` and `remove` are never used [INFO] [stdout] --> src/type_checker.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl TypeEnv { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 48 | fn extend(mut self, (v, s): (Var, Scheme)) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn remove(mut self, var: Var) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:100:17 [INFO] [stdout] | [INFO] [stdout] 100 | set.union(&a1.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 100 | let _ = set.union(&a1.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:101:17 [INFO] [stdout] | [INFO] [stdout] 101 | set.union(&a2.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 101 | let _ = set.union(&a2.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Union` that must be used [INFO] [stdout] --> src/type_checker.rs:127:17 [INFO] [stdout] | [INFO] [stdout] 127 | set.union(&t.ftv()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the union as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 127 | let _ = set.union(&t.ftv()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::collections::btree_set::Difference` that must be used [INFO] [stdout] --> src/type_checker.rs:128:17 [INFO] [stdout] | [INFO] [stdout] 128 | set.difference(&BTreeSet::from_iter(tv.iter().cloned())); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this returns the difference as an iterator, without modifying either input set [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 128 | let _ = set.difference(&BTreeSet::from_iter(tv.iter().cloned())); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.93s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, 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" "a8f0923111ec542b207e5ca049213d3e7534401aa8282d550f3e38ccf38d747b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8f0923111ec542b207e5ca049213d3e7534401aa8282d550f3e38ccf38d747b", kill_on_drop: false }` [INFO] [stdout] a8f0923111ec542b207e5ca049213d3e7534401aa8282d550f3e38ccf38d747b [INFO] checking Guaschman/hm-interpreter against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuaschman%2Fhm-interpreter" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Guaschman/hm-interpreter 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/Guaschman/hm-interpreter [INFO] finished tweaking git repo https://github.com/Guaschman/hm-interpreter [INFO] tweaked toml for git repo https://github.com/Guaschman/hm-interpreter written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Guaschman/hm-interpreter 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] [stderr] Updating crates.io index [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ee8bfe7e2110efc051aac9cc23cdd742d7c2265d51cca25ff707829c879c4f13 [INFO] running `Command { std: "docker" "start" "-a" "ee8bfe7e2110efc051aac9cc23cdd742d7c2265d51cca25ff707829c879c4f13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee8bfe7e2110efc051aac9cc23cdd742d7c2265d51cca25ff707829c879c4f13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee8bfe7e2110efc051aac9cc23cdd742d7c2265d51cca25ff707829c879c4f13", kill_on_drop: false }` [INFO] [stdout] ee8bfe7e2110efc051aac9cc23cdd742d7c2265d51cca25ff707829c879c4f13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a20e097e2624b7c70b7ef24270717757930381b50064d98616f80d93896d971b [INFO] running `Command { std: "docker" "start" "-a" "a20e097e2624b7c70b7ef24270717757930381b50064d98616f80d93896d971b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling nom v5.1.3 [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] [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" "a20e097e2624b7c70b7ef24270717757930381b50064d98616f80d93896d971b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a20e097e2624b7c70b7ef24270717757930381b50064d98616f80d93896d971b", kill_on_drop: false }` [INFO] [stdout] a20e097e2624b7c70b7ef24270717757930381b50064d98616f80d93896d971b