[INFO] fetching crate Cantor-Pair 0.1.2...
[INFO] checking Cantor-Pair-0.1.2 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate Cantor-Pair 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate Cantor-Pair 0.1.2
[INFO] finished tweaking crates.io crate Cantor-Pair 0.1.2
[INFO] tweaked toml for crates.io crate Cantor-Pair 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate Cantor-Pair 0.1.2 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f10d39a095ce065d19af45c2fb47b4a523f6213e08c007c3c38968af5c7b671b
[INFO] running `Command { std: "docker" "start" "-a" "f10d39a095ce065d19af45c2fb47b4a523f6213e08c007c3c38968af5c7b671b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f10d39a095ce065d19af45c2fb47b4a523f6213e08c007c3c38968af5c7b671b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f10d39a095ce065d19af45c2fb47b4a523f6213e08c007c3c38968af5c7b671b", kill_on_drop: false }`
[INFO] [stdout] f10d39a095ce065d19af45c2fb47b4a523f6213e08c007c3c38968af5c7b671b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32464d3148c392fcd5e0431bdbb8f217e23b77f4f2f47b7d3329e9694dbe6978
[INFO] running `Command { std: "docker" "start" "-a" "32464d3148c392fcd5e0431bdbb8f217e23b77f4f2f47b7d3329e9694dbe6978", kill_on_drop: false }`
[INFO] [stderr]     Checking Cantor-Pair v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `cantor_pair` is never used
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn cantor_pair(n: &usize, m: &usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cantor_unpair` is never used
[INFO] [stdout]   --> src/lib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn cantor_unpair(z: &usize) -> (usize, usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Cantor_Pair` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `cantor_pair`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"Cantor_Pair","loc":"/rustc/38c2997544af84fe301d600d6896397738163002/library/std/src/macros.rs:385:12","p":46,"ph":5,"wa":0,"pa":0,"a":5,"pos":5,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":5,"a_opt":5,"sz_no_dedup":80,"sz_old":80,"sz_opt":80}
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "32464d3148c392fcd5e0431bdbb8f217e23b77f4f2f47b7d3329e9694dbe6978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32464d3148c392fcd5e0431bdbb8f217e23b77f4f2f47b7d3329e9694dbe6978", kill_on_drop: false }`
[INFO] [stdout] 32464d3148c392fcd5e0431bdbb8f217e23b77f4f2f47b7d3329e9694dbe6978