[INFO] cloning repository https://github.com/George-Miao/calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/George-Miao/calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge-Miao%2Fcalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge-Miao%2Fcalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f88615e8f88e913def973ea658844ac6642e1004
[INFO] checking George-Miao/calc against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge-Miao%2Fcalc" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/George-Miao/calc
[INFO] finished tweaking git repo https://github.com/George-Miao/calc
[INFO] tweaked toml for git repo https://github.com/George-Miao/calc written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/George-Miao/calc on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/George-Miao/calc 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.5
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0393052146b41b9d8df4d4325a8dbfed64c87cdcbdc125553c4daae126cf7ec
[INFO] running `Command { std: "docker" "start" "-a" "e0393052146b41b9d8df4d4325a8dbfed64c87cdcbdc125553c4daae126cf7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0393052146b41b9d8df4d4325a8dbfed64c87cdcbdc125553c4daae126cf7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0393052146b41b9d8df4d4325a8dbfed64c87cdcbdc125553c4daae126cf7ec", kill_on_drop: false }`
[INFO] [stdout] e0393052146b41b9d8df4d4325a8dbfed64c87cdcbdc125553c4daae126cf7ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9df58d408035c2707acc56cf4e25c53345e3d229dfb2104944f9ce1ddcc9cf3f
[INFO] running `Command { std: "docker" "start" "-a" "9df58d408035c2707acc56cf4e25c53345e3d229dfb2104944f9ce1ddcc9cf3f", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling gimli v0.27.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rust_decimal v1.27.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling object v0.30.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking pest v2.5.2
[INFO] [stderr]    Compiling single v1.0.1
[INFO] [stderr]    Compiling pest-ast v0.3.3
[INFO] [stderr]     Checking from-pest v0.3.1
[INFO] [stderr]    Compiling pest_meta v2.5.2
[INFO] [stderr]    Compiling pest_generator v2.5.2
[INFO] [stderr]    Compiling pest_derive v2.5.2
[INFO] [stderr]     Checking calc-core v0.1.0 (/opt/rustwide/workdir/calc-core)
[INFO] [stdout] warning: unused import: `from_pest::FromPest`
[INFO] [stdout]  --> calc-core/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use from_pest::FromPest;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Expr`
[INFO] [stdout]  --> calc-core/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::Expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Neg` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     neg: Neg,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Add` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     add: Add,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sub` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 |     sub: Sub,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mul` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |     mul: Mul,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Div` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |     div: Div,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rem` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |     rem: Rem,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Eq` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     eq: Eq,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Neq` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     neq: Neq,
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lt` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     lt: Lt,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gt` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     gt: Gt,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ge` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ge: Ge,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Le` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     le: Le
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unit_types` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `span_into_str` is never used
[INFO] [stdout]   --> calc-core/src/ast.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn span_into_str(span: Span) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_reference` is never used
[INFO] [stdout]   --> calc-core/src/ast.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn parse_reference(str: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Number {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Literal` is never used
[INFO] [stdout]   --> calc-core/src/ast.rs:56:10
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub enum Literal {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reference` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Reference {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UnaryOp` is never used
[INFO] [stdout]   --> calc-core/src/ast.rs:70:10
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub enum UnaryOp {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnaryOpExpr` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct UnaryOpExpr {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryOps` is never used
[INFO] [stdout]   --> calc-core/src/ast.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum BinaryOps {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinaryOpExpr` is never constructed
[INFO] [stdout]   --> calc-core/src/ast.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub struct BinaryOpExpr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NominalExpr` is never used
[INFO] [stdout]    --> calc-core/src/ast.rs:107:10
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub enum NominalExpr {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParenExpr` is never constructed
[INFO] [stdout]    --> calc-core/src/ast.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct ParenExpr {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]    --> calc-core/src/ast.rs:122:10
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub enum Expr {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> calc-core/src/ast.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn span_into_str(span: Span) -> &str {
[INFO] [stdout]    |                        ^^^^     ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is hidden 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] 37 | fn span_into_str(span: Span<'_>) -> &str {
[INFO] [stdout]    |                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> calc-core/src/ast.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn span_into_str(span: Span) -> &str {
[INFO] [stdout]    |                        ^^^^     ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is hidden 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] 37 | fn span_into_str(span: Span<'_>) -> &str {
[INFO] [stdout]    |                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.00s
[INFO] running `Command { std: "docker" "inspect" "9df58d408035c2707acc56cf4e25c53345e3d229dfb2104944f9ce1ddcc9cf3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df58d408035c2707acc56cf4e25c53345e3d229dfb2104944f9ce1ddcc9cf3f", kill_on_drop: false }`
[INFO] [stdout] 9df58d408035c2707acc56cf4e25c53345e3d229dfb2104944f9ce1ddcc9cf3f
