[INFO] fetching crate recursion-visualize 0.5.0...
[INFO] testing recursion-visualize-0.5.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate recursion-visualize 0.5.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate recursion-visualize 0.5.0
[INFO] finished tweaking crates.io crate recursion-visualize 0.5.0
[INFO] tweaked toml for crates.io crate recursion-visualize 0.5.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate recursion-visualize 0.5.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate recursion-visualize 0.5.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71221cd5b75ec465ed67bd9fbde8ea54aaba069c2860a58fa4e0ba65d30504c1
[INFO] running `Command { std: "docker" "start" "-a" "71221cd5b75ec465ed67bd9fbde8ea54aaba069c2860a58fa4e0ba65d30504c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71221cd5b75ec465ed67bd9fbde8ea54aaba069c2860a58fa4e0ba65d30504c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71221cd5b75ec465ed67bd9fbde8ea54aaba069c2860a58fa4e0ba65d30504c1", kill_on_drop: false }`
[INFO] [stdout] 71221cd5b75ec465ed67bd9fbde8ea54aaba069c2860a58fa4e0ba65d30504c1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c14eb0f7cc3f25f2b3aa0f9b03b285faf64bded2402ea5c669bd02c3ed4ca239
[INFO] running `Command { std: "docker" "start" "-a" "c14eb0f7cc3f25f2b3aa0f9b03b285faf64bded2402ea5c669bd02c3ed4ca239", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling recursion v0.5.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling recursion-visualize v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.95s
[INFO] running `Command { std: "docker" "inspect" "c14eb0f7cc3f25f2b3aa0f9b03b285faf64bded2402ea5c669bd02c3ed4ca239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14eb0f7cc3f25f2b3aa0f9b03b285faf64bded2402ea5c669bd02c3ed4ca239", kill_on_drop: false }`
[INFO] [stdout] c14eb0f7cc3f25f2b3aa0f9b03b285faf64bded2402ea5c669bd02c3ed4ca239
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b81e600568abc37cf5e09096b1152fc78f3c49c23c394d6f6c37202f1cfb5ae
[INFO] running `Command { std: "docker" "start" "-a" "7b81e600568abc37cf5e09096b1152fc78f3c49c23c394d6f6c37202f1cfb5ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling recursion-visualize v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> examples/expr.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn add(a: Expr, b: Expr) -> Expr {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "7b81e600568abc37cf5e09096b1152fc78f3c49c23c394d6f6c37202f1cfb5ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b81e600568abc37cf5e09096b1152fc78f3c49c23c394d6f6c37202f1cfb5ae", kill_on_drop: false }`
[INFO] [stdout] 7b81e600568abc37cf5e09096b1152fc78f3c49c23c394d6f6c37202f1cfb5ae
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d49013e78b6c6451e46a6fac9c5bdca74ba434f27586c3a0582e43b0e04adab7
[INFO] running `Command { std: "docker" "start" "-a" "d49013e78b6c6451e46a6fac9c5bdca74ba434f27586c3a0582e43b0e04adab7", kill_on_drop: false }`
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]    --> examples/expr.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn add(a: Expr, b: Expr) -> Expr {
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `recursion-visualize` (example "expr") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/recursion_visualize-f95eb6f6df18bafc)
[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] [stderr]    Doc-tests recursion_visualize
[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" "d49013e78b6c6451e46a6fac9c5bdca74ba434f27586c3a0582e43b0e04adab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d49013e78b6c6451e46a6fac9c5bdca74ba434f27586c3a0582e43b0e04adab7", kill_on_drop: false }`
[INFO] [stdout] d49013e78b6c6451e46a6fac9c5bdca74ba434f27586c3a0582e43b0e04adab7