[INFO] cloning repository https://github.com/sassinzz13/multiplication-table-and-factorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sassinzz13/multiplication-table-and-factorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassinzz13%2Fmultiplication-table-and-factorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassinzz13%2Fmultiplication-table-and-factorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7b0369ce4ca8050c38ef62dcc82e8ea6e5a4747
[INFO] checking sassinzz13/multiplication-table-and-factorial against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassinzz13%2Fmultiplication-table-and-factorial" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sassinzz13/multiplication-table-and-factorial on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sassinzz13/multiplication-table-and-factorial
[INFO] finished tweaking git repo https://github.com/sassinzz13/multiplication-table-and-factorial
[INFO] tweaked toml for git repo https://github.com/sassinzz13/multiplication-table-and-factorial written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sassinzz13/multiplication-table-and-factorial 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-segmentation v0.1.2
[INFO] [stderr]   Downloaded strcursor v0.2.5
[INFO] [stderr]   Downloaded scan-rules v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc1000598523f7f1bbceb61d0b7747e8e217e21cedcc11df69e4cde702ac0003
[INFO] running `Command { std: "docker" "start" "-a" "cc1000598523f7f1bbceb61d0b7747e8e217e21cedcc11df69e4cde702ac0003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc1000598523f7f1bbceb61d0b7747e8e217e21cedcc11df69e4cde702ac0003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc1000598523f7f1bbceb61d0b7747e8e217e21cedcc11df69e4cde702ac0003", kill_on_drop: false }`
[INFO] [stdout] cc1000598523f7f1bbceb61d0b7747e8e217e21cedcc11df69e4cde702ac0003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b48eabe22a3d9587456195311b63f3dd9b5b372c9c6a681389de2e04d6d9666e
[INFO] running `Command { std: "docker" "start" "-a" "b48eabe22a3d9587456195311b63f3dd9b5b372c9c6a681389de2e04d6d9666e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling strcursor v0.2.5
[INFO] [stderr]    Compiling scan-rules v0.1.3
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     while (i<=n){
[INFO] [stdout]    |           ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     while (i<=n){
[INFO] [stdout] 25 +     while i<=n {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     while (i<=n){
[INFO] [stdout]    |           ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     while (i<=n){
[INFO] [stdout] 25 +     while i<=n {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let mut results = n*i;
[INFO] [stdout]    |           ----^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let mut results = n*i;
[INFO] [stdout]    |           ----^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "b48eabe22a3d9587456195311b63f3dd9b5b372c9c6a681389de2e04d6d9666e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b48eabe22a3d9587456195311b63f3dd9b5b372c9c6a681389de2e04d6d9666e", kill_on_drop: false }`
[INFO] [stdout] b48eabe22a3d9587456195311b63f3dd9b5b372c9c6a681389de2e04d6d9666e
[INFO] checking sassinzz13/multiplication-table-and-factorial against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassinzz13%2Fmultiplication-table-and-factorial" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sassinzz13/multiplication-table-and-factorial on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sassinzz13/multiplication-table-and-factorial
[INFO] finished tweaking git repo https://github.com/sassinzz13/multiplication-table-and-factorial
[INFO] tweaked toml for git repo https://github.com/sassinzz13/multiplication-table-and-factorial written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sassinzz13/multiplication-table-and-factorial 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4de2dac405ee392416e56d35a72bcaac0f649328510265bd403024e5f5db090a
[INFO] running `Command { std: "docker" "start" "-a" "4de2dac405ee392416e56d35a72bcaac0f649328510265bd403024e5f5db090a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4de2dac405ee392416e56d35a72bcaac0f649328510265bd403024e5f5db090a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de2dac405ee392416e56d35a72bcaac0f649328510265bd403024e5f5db090a", kill_on_drop: false }`
[INFO] [stdout] 4de2dac405ee392416e56d35a72bcaac0f649328510265bd403024e5f5db090a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bd626e396351eba407a6f9143dd58643320f4ade8d33b8f89974d16edd0ffb9
[INFO] running `Command { std: "docker" "start" "-a" "6bd626e396351eba407a6f9143dd58643320f4ade8d33b8f89974d16edd0ffb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling strcursor v0.2.5
[INFO] [stderr]    Compiling scan-rules v0.1.3
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     while (i<=n){
[INFO] [stdout]    |           ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     while (i<=n){
[INFO] [stdout] 25 +     while i<=n {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let mut results = n*i;
[INFO] [stdout]    |           ----^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/main.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |     while (i<=n){
[INFO] [stdout]    |           ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     while (i<=n){
[INFO] [stdout] 25 +     while i<=n {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let mut results = n*i;
[INFO] [stdout]    |           ----^^^^^^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "6bd626e396351eba407a6f9143dd58643320f4ade8d33b8f89974d16edd0ffb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd626e396351eba407a6f9143dd58643320f4ade8d33b8f89974d16edd0ffb9", kill_on_drop: false }`
[INFO] [stdout] 6bd626e396351eba407a6f9143dd58643320f4ade8d33b8f89974d16edd0ffb9