[INFO] fetching crate kalgan_i18n 0.9.1...
[INFO] testing kalgan_i18n-0.9.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate kalgan_i18n 0.9.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate kalgan_i18n 0.9.1
[INFO] finished tweaking crates.io crate kalgan_i18n 0.9.1
[INFO] tweaked toml for crates.io crate kalgan_i18n 0.9.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kalgan_i18n 0.9.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0de5f47f4986b9b2c57063a2db9688840a0152b1400cf96803f31ef41787b4d
[INFO] running `Command { std: "docker" "start" "-a" "f0de5f47f4986b9b2c57063a2db9688840a0152b1400cf96803f31ef41787b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0de5f47f4986b9b2c57063a2db9688840a0152b1400cf96803f31ef41787b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0de5f47f4986b9b2c57063a2db9688840a0152b1400cf96803f31ef41787b4d", kill_on_drop: false }`
[INFO] [stdout] f0de5f47f4986b9b2c57063a2db9688840a0152b1400cf96803f31ef41787b4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de19f5c0163373963554071ee3a7e9d95bb8753518339ddbf8b0c71355ca86e8
[INFO] running `Command { std: "docker" "start" "-a" "de19f5c0163373963554071ee3a7e9d95bb8753518339ddbf8b0c71355ca86e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling kalgan_i18n v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/messages.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     for element in map.as_mapping() {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.11s
[INFO] running `Command { std: "docker" "inspect" "de19f5c0163373963554071ee3a7e9d95bb8753518339ddbf8b0c71355ca86e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de19f5c0163373963554071ee3a7e9d95bb8753518339ddbf8b0c71355ca86e8", kill_on_drop: false }`
[INFO] [stdout] de19f5c0163373963554071ee3a7e9d95bb8753518339ddbf8b0c71355ca86e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 341cfdb7f09342739e12c4e9c57168a8f1ff11ae1e00bc0e29fe10098a1ba8be
[INFO] running `Command { std: "docker" "start" "-a" "341cfdb7f09342739e12c4e9c57168a8f1ff11ae1e00bc0e29fe10098a1ba8be", kill_on_drop: false }`
[INFO] [stderr]    Compiling kalgan_i18n v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/messages.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     for element in map.as_mapping() {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/messages.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |     for element in map.as_mapping() {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -     for element in map.as_mapping() {
[INFO] [stdout] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "341cfdb7f09342739e12c4e9c57168a8f1ff11ae1e00bc0e29fe10098a1ba8be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "341cfdb7f09342739e12c4e9c57168a8f1ff11ae1e00bc0e29fe10098a1ba8be", kill_on_drop: false }`
[INFO] [stdout] 341cfdb7f09342739e12c4e9c57168a8f1ff11ae1e00bc0e29fe10098a1ba8be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 80f8a7c36b0f9e42d6c17a568916437bbb19bd3c82bff30f88b3b78c37c47a2b
[INFO] running `Command { std: "docker" "start" "-a" "80f8a7c36b0f9e42d6c17a568916437bbb19bd3c82bff30f88b3b78c37c47a2b", kill_on_drop: false }`
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/messages.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 |     for element in map.as_mapping() {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 100 -     for element in map.as_mapping() {
[INFO] [stderr] 100 +     while let Some(element) = map.as_mapping() {
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 100 -     for element in map.as_mapping() {
[INFO] [stderr] 100 +     if let Some(element) = map.as_mapping() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `kalgan_i18n` (lib) generated 1 warning
[INFO] [stderr] warning: `kalgan_i18n` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kalgan_i18n-200f628239b8780e)
[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 kalgan_i18n
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Messages::new (line 24) ... ok
[INFO] [stdout] test src/lib.rs - Messages::trans (line 34) ... ok
[INFO] [stdout] test src/lib.rs - Messages::trans (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "80f8a7c36b0f9e42d6c17a568916437bbb19bd3c82bff30f88b3b78c37c47a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80f8a7c36b0f9e42d6c17a568916437bbb19bd3c82bff30f88b3b78c37c47a2b", kill_on_drop: false }`
[INFO] [stdout] 80f8a7c36b0f9e42d6c17a568916437bbb19bd3c82bff30f88b3b78c37c47a2b