[INFO] cloning repository https://github.com/TeXitoi/deriv-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TeXitoi/deriv-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeXitoi%2Fderiv-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeXitoi%2Fderiv-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5724cd11df9683847153e48b0fb6eca785d75b4
[INFO] testing TeXitoi/deriv-rs against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeXitoi%2Fderiv-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TeXitoi/deriv-rs
[INFO] finished tweaking git repo https://github.com/TeXitoi/deriv-rs
[INFO] tweaked toml for git repo https://github.com/TeXitoi/deriv-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TeXitoi/deriv-rs on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TeXitoi/deriv-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-arena v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a988d0b22147b7ead69d3bbecba0b535a048c5ef39f8965ea06dd7a0e3fbf9d
[INFO] running `Command { std: "docker" "start" "-a" "6a988d0b22147b7ead69d3bbecba0b535a048c5ef39f8965ea06dd7a0e3fbf9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a988d0b22147b7ead69d3bbecba0b535a048c5ef39f8965ea06dd7a0e3fbf9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a988d0b22147b7ead69d3bbecba0b535a048c5ef39f8965ea06dd7a0e3fbf9d", kill_on_drop: false }`
[INFO] [stdout] 6a988d0b22147b7ead69d3bbecba0b535a048c5ef39f8965ea06dd7a0e3fbf9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26dc302e295f4c43c809dac1ba6e9e14912e3d77e91e773933e8618f7290fb83
[INFO] running `Command { std: "docker" "start" "-a" "26dc302e295f4c43c809dac1ba6e9e14912e3d77e91e773933e8618f7290fb83", kill_on_drop: false }`
[INFO] [stderr]    Compiling typed-arena v1.4.1
[INFO] [stderr]    Compiling deriv-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:35:68
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stdout]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |               |                         |
[INFO] [stdout]    |                       |               |                         the same lifetime is named here
[INFO] [stdout]    |                       |               the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:46:68
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stdout]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |               |                         |
[INFO] [stdout]    |                       |               |                         the same lifetime is named here
[INFO] [stdout]    |                       |               the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:57:59
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |              |              |            |
[INFO] [stdout]    |             |              |              |            the same lifetime is named here
[INFO] [stdout]    |             |              |              the lifetime is named here
[INFO] [stdout]    |             |              the lifetime is named here
[INFO] [stdout]    |             the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:77:59
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |              |              |            |
[INFO] [stdout]    |             |              |              |            the same lifetime is named here
[INFO] [stdout]    |             |              |              the lifetime is named here
[INFO] [stdout]    |             |              the lifetime is named here
[INFO] [stdout]    |             the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:101:59
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]     |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |              |              |            |
[INFO] [stdout]     |             |              |              |            the same lifetime is named here
[INFO] [stdout]     |             |              |              the lifetime is named here
[INFO] [stdout]     |             |              the lifetime is named here
[INFO] [stdout]     |             the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:111:44
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr {
[INFO] [stdout]     |            --              --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |            |               |            |
[INFO] [stdout]     |            |               |            the same lifetime is named here
[INFO] [stdout]     |            |               the lifetime is named here
[INFO] [stdout]     |            the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:118:52
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr {
[INFO] [stdout]     |           --              --                    -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |           |               |                     |
[INFO] [stdout]     |           |               |                     the same lifetime is named here
[INFO] [stdout]     |           |               the lifetime is named here
[INFO] [stdout]     |           the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "26dc302e295f4c43c809dac1ba6e9e14912e3d77e91e773933e8618f7290fb83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26dc302e295f4c43c809dac1ba6e9e14912e3d77e91e773933e8618f7290fb83", kill_on_drop: false }`
[INFO] [stdout] 26dc302e295f4c43c809dac1ba6e9e14912e3d77e91e773933e8618f7290fb83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfbba27346a47dae260288c44f9244613bc2558d96086c15c10bd315511e39e6
[INFO] running `Command { std: "docker" "start" "-a" "dfbba27346a47dae260288c44f9244613bc2558d96086c15c10bd315511e39e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling deriv-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:35:68
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stdout]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |               |                         |
[INFO] [stdout]    |                       |               |                         the same lifetime is named here
[INFO] [stdout]    |                       |               the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:46:68
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stdout]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |               |                         |
[INFO] [stdout]    |                       |               |                         the same lifetime is named here
[INFO] [stdout]    |                       |               the lifetime is named here
[INFO] [stdout]    |                       the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:57:59
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |              |              |            |
[INFO] [stdout]    |             |              |              |            the same lifetime is named here
[INFO] [stdout]    |             |              |              the lifetime is named here
[INFO] [stdout]    |             |              the lifetime is named here
[INFO] [stdout]    |             the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:77:59
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |              |              |            |
[INFO] [stdout]    |             |              |              |            the same lifetime is named here
[INFO] [stdout]    |             |              |              the lifetime is named here
[INFO] [stdout]    |             |              the lifetime is named here
[INFO] [stdout]    |             the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:101:59
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stdout]     |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |              |              |            |
[INFO] [stdout]     |             |              |              |            the same lifetime is named here
[INFO] [stdout]     |             |              |              the lifetime is named here
[INFO] [stdout]     |             |              the lifetime is named here
[INFO] [stdout]     |             the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:111:44
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr {
[INFO] [stdout]     |            --              --           -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |            |               |            |
[INFO] [stdout]     |            |               |            the same lifetime is named here
[INFO] [stdout]     |            |               the lifetime is named here
[INFO] [stdout]     |            the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:118:52
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr {
[INFO] [stdout]     |           --              --                    -- ^^^^ the same lifetime is hidden here
[INFO] [stdout]     |           |               |                     |
[INFO] [stdout]     |           |               |                     the same lifetime is named here
[INFO] [stdout]     |           |               the lifetime is named here
[INFO] [stdout]     |           the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr<'a> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "dfbba27346a47dae260288c44f9244613bc2558d96086c15c10bd315511e39e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfbba27346a47dae260288c44f9244613bc2558d96086c15c10bd315511e39e6", kill_on_drop: false }`
[INFO] [stdout] dfbba27346a47dae260288c44f9244613bc2558d96086c15c10bd315511e39e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ba09cf1d7d32b6a430c338c4ee76a809f49a7f5dcda4340b02ddd717133c4d7
[INFO] running `Command { std: "docker" "start" "-a" "2ba09cf1d7d32b6a430c338c4ee76a809f49a7f5dcda4340b02ddd717133c4d7", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/main.rs:35:68
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stderr]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |               |                         |
[INFO] [stderr]    |                       |               |                         the same lifetime is named here
[INFO] [stderr]    |                       |               the lifetime is named here
[INFO] [stderr]    |                       the lifetime is named 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: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn decompose_add(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stderr]    |                                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/main.rs:46:68
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr>) {
[INFO] [stderr]    |                       --              --                        -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                       |               |                         |
[INFO] [stderr]    |                       |               |                         the same lifetime is named here
[INFO] [stderr]    |                       |               the lifetime is named here
[INFO] [stderr]    |                       the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn decompose_mul(&'a self, expr: &'a Expr) -> (i64, Option<&'a Expr<'a>>) {
[INFO] [stderr]    |                                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/main.rs:57:59
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stderr]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |             |              |              |            |
[INFO] [stderr]    |             |              |              |            the same lifetime is named here
[INFO] [stderr]    |             |              |              the lifetime is named here
[INFO] [stderr]    |             |              the lifetime is named here
[INFO] [stderr]    |             the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn add(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stderr]    |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/main.rs:77:59
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stderr]    |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |             |              |              |            |
[INFO] [stderr]    |             |              |              |            the same lifetime is named here
[INFO] [stderr]    |             |              |              the lifetime is named here
[INFO] [stderr]    |             |              the lifetime is named here
[INFO] [stderr]    |             the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn mul(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stderr]    |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/main.rs:101:59
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr {
[INFO] [stderr]     |             --             --             --           -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]     |             |              |              |            |
[INFO] [stderr]     |             |              |              |            the same lifetime is named here
[INFO] [stderr]     |             |              |              the lifetime is named here
[INFO] [stderr]     |             |              the lifetime is named here
[INFO] [stderr]     |             the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn pow(&'a self, lhs: &'a Expr, rhs: &'a Expr) -> &'a Expr<'a> {
[INFO] [stderr]     |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/main.rs:111:44
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr {
[INFO] [stderr]     |            --              --           -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]     |            |               |            |
[INFO] [stderr]     |            |               |            the same lifetime is named here
[INFO] [stderr]     |            |               the lifetime is named here
[INFO] [stderr]     |            the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn ln(&'a self, expr: &'a Expr) -> &'a Expr<'a> {
[INFO] [stderr]     |                                                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/main.rs:118:52
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr {
[INFO] [stderr]     |           --              --                    -- ^^^^ the same lifetime is hidden here
[INFO] [stderr]     |           |               |                     |
[INFO] [stderr]     |           |               |                     the same lifetime is named here
[INFO] [stderr]     |           |               the lifetime is named here
[INFO] [stderr]     |           the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn d(&'a self, expr: &'a Expr, x: &str) -> &'a Expr<'a> {
[INFO] [stderr]     |                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `deriv-rs` (bin "deriv-rs" test) generated 7 warnings (run `cargo fix --bin "deriv-rs" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/deriv_rs-7ffb0c29ba6963d5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ba09cf1d7d32b6a430c338c4ee76a809f49a7f5dcda4340b02ddd717133c4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba09cf1d7d32b6a430c338c4ee76a809f49a7f5dcda4340b02ddd717133c4d7", kill_on_drop: false }`
[INFO] [stdout] 2ba09cf1d7d32b6a430c338c4ee76a809f49a7f5dcda4340b02ddd717133c4d7