[INFO] cloning repository https://github.com/YumeCross/thesislang-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YumeCross/thesislang-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumeCross%2Fthesislang-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumeCross%2Fthesislang-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35fa2430fcc913d9a7c0a64b90c60fbd742cc351
[INFO] building YumeCross/thesislang-rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYumeCross%2Fthesislang-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YumeCross/thesislang-rs on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YumeCross/thesislang-rs
[INFO] finished tweaking git repo https://github.com/YumeCross/thesislang-rs
[INFO] tweaked toml for git repo https://github.com/YumeCross/thesislang-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/YumeCross/thesislang-rs 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ariadne v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 728e6c14c8965a26c8ffb6b3a547b35f8b7c9704d2c042cac9ebe34e83119338
[INFO] running `Command { std: "docker" "start" "-a" "728e6c14c8965a26c8ffb6b3a547b35f8b7c9704d2c042cac9ebe34e83119338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "728e6c14c8965a26c8ffb6b3a547b35f8b7c9704d2c042cac9ebe34e83119338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728e6c14c8965a26c8ffb6b3a547b35f8b7c9704d2c042cac9ebe34e83119338", kill_on_drop: false }`
[INFO] [stdout] 728e6c14c8965a26c8ffb6b3a547b35f8b7c9704d2c042cac9ebe34e83119338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 216ad12863d5e2de8c65d88d2c365643da1fb8f9f813acb5bd51fc578f9f0f86
[INFO] running `Command { std: "docker" "start" "-a" "216ad12863d5e2de8c65d88d2c365643da1fb8f9f813acb5bd51fc578f9f0f86", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling ariadne v0.4.1
[INFO] [stderr]    Compiling thesis-interpreter v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `combiner::*`
[INFO] [stdout]  --> src/evaluation/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use combiner::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `kind` and `report_error` are never used
[INFO] [stdout]   --> src/error.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Error {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn kind(&self) -> ErrorKind { self.kind }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn report_error(self, src: &SrcInfo, pos: SourcePos, label: String) -> ! {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ln` and `col` are never used
[INFO] [stdout]   --> src/parser.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl SourcePos {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 82 |     pub fn ln(&self) -> usize { self.0 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     pub fn col(&self) -> usize { self.1 }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tokens` is never used
[INFO] [stdout]    --> src/parser.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl LexicalParser {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn tokens(&self) -> Vec<Token> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_untraced` is never used
[INFO] [stdout]    --> src/parser.rs:307:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | impl SyntacticParser {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn parse_untraced(&mut self, tokens: Vec<Token>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/syntax.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Symbol {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn new<S: Into<String>>(value: S) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Combiner` is never used
[INFO] [stdout]  --> src/evaluation/combiner.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Combiner {}
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Term {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `access` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub trait Access<T> {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 63 |     fn access(&self) -> &T;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `access_mut` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub trait AccessMut<T> {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 67 |     fn access_mut(&mut self) -> &mut T;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_access_mut` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub trait TryAccessMut<T> {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 75 |     fn try_access_mut(&mut self) -> Result<&mut T, Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert` is never used
[INFO] [stdout]   --> src/evaluation/context.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Env {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn insert(&mut self, name: &String, term: Term) -> Option<Term> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "216ad12863d5e2de8c65d88d2c365643da1fb8f9f813acb5bd51fc578f9f0f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216ad12863d5e2de8c65d88d2c365643da1fb8f9f813acb5bd51fc578f9f0f86", kill_on_drop: false }`
[INFO] [stdout] 216ad12863d5e2de8c65d88d2c365643da1fb8f9f813acb5bd51fc578f9f0f86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5ba827907121cd8e97647d849570767e4d17421cca13ab27947f7b5744cd65b
[INFO] running `Command { std: "docker" "start" "-a" "c5ba827907121cd8e97647d849570767e4d17421cca13ab27947f7b5744cd65b", kill_on_drop: false }`
[INFO] [stderr]    Compiling thesis-interpreter v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `combiner::*`
[INFO] [stdout]  --> src/evaluation/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use combiner::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `kind` and `report_error` are never used
[INFO] [stdout]   --> src/error.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Error {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn kind(&self) -> ErrorKind { self.kind }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn report_error(self, src: &SrcInfo, pos: SourcePos, label: String) -> ! {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ln` and `col` are never used
[INFO] [stdout]   --> src/parser.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 81 | impl SourcePos {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 82 |     pub fn ln(&self) -> usize { self.0 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     pub fn col(&self) -> usize { self.1 }
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_untraced` is never used
[INFO] [stdout]    --> src/parser.rs:307:12
[INFO] [stdout]     |
[INFO] [stdout] 183 | impl SyntacticParser {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn parse_untraced(&mut self, tokens: Vec<Token>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Combiner` is never used
[INFO] [stdout]  --> src/evaluation/combiner.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Combiner {}
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Term {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `access` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub trait Access<T> {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] 63 |     fn access(&self) -> &T;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `access_mut` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub trait AccessMut<T> {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 67 |     fn access_mut(&mut self) -> &mut T;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_access_mut` is never used
[INFO] [stdout]   --> src/evaluation/term.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub trait TryAccessMut<T> {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 75 |     fn try_access_mut(&mut self) -> Result<&mut T, Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert` is never used
[INFO] [stdout]   --> src/evaluation/context.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Env {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn insert(&mut self, name: &String, term: Term) -> Option<Term> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "c5ba827907121cd8e97647d849570767e4d17421cca13ab27947f7b5744cd65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ba827907121cd8e97647d849570767e4d17421cca13ab27947f7b5744cd65b", kill_on_drop: false }`
[INFO] [stdout] c5ba827907121cd8e97647d849570767e4d17421cca13ab27947f7b5744cd65b