[INFO] fetching crate latexdef 0.4.2...
[INFO] checking latexdef-0.4.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate latexdef 0.4.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate latexdef 0.4.2 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 crates.io crate latexdef 0.4.2
[INFO] finished tweaking crates.io crate latexdef 0.4.2
[INFO] tweaked toml for crates.io crate latexdef 0.4.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate latexdef 0.4.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded quick-error v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d5176636ae177a227d8f73376f82feb6eb48bee746bbfbe8143ba80f202a83fb
[INFO] running `Command { std: "docker" "start" "-a" "d5176636ae177a227d8f73376f82feb6eb48bee746bbfbe8143ba80f202a83fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5176636ae177a227d8f73376f82feb6eb48bee746bbfbe8143ba80f202a83fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5176636ae177a227d8f73376f82feb6eb48bee746bbfbe8143ba80f202a83fb", kill_on_drop: false }`
[INFO] [stdout] d5176636ae177a227d8f73376f82feb6eb48bee746bbfbe8143ba80f202a83fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e062c3de935aa022bd81b9111ef75450f561c300913e1835e547714e36011b6d
[INFO] running `Command { std: "docker" "start" "-a" "e062c3de935aa022bd81b9111ef75450f561c300913e1835e547714e36011b6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking latexdef v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 5.15s
[INFO] running `Command { std: "docker" "inspect" "e062c3de935aa022bd81b9111ef75450f561c300913e1835e547714e36011b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e062c3de935aa022bd81b9111ef75450f561c300913e1835e547714e36011b6d", kill_on_drop: false }`
[INFO] [stdout] e062c3de935aa022bd81b9111ef75450f561c300913e1835e547714e36011b6d
[INFO] checking latexdef-0.4.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate latexdef 0.4.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate latexdef 0.4.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate latexdef 0.4.2
[INFO] finished tweaking crates.io crate latexdef 0.4.2
[INFO] tweaked toml for crates.io crate latexdef 0.4.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate latexdef 0.4.2 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdbaa585630ef8c27b42698a3c69f5447c1ba7a3671e3e999900bd1482bc1bd0
[INFO] running `Command { std: "docker" "start" "-a" "cdbaa585630ef8c27b42698a3c69f5447c1ba7a3671e3e999900bd1482bc1bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdbaa585630ef8c27b42698a3c69f5447c1ba7a3671e3e999900bd1482bc1bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdbaa585630ef8c27b42698a3c69f5447c1ba7a3671e3e999900bd1482bc1bd0", kill_on_drop: false }`
[INFO] [stdout] cdbaa585630ef8c27b42698a3c69f5447c1ba7a3671e3e999900bd1482bc1bd0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae57b78bf9198dfd0daca517f181f559c6b5298cd2f9f9d3ae0cec5aea53fec3
[INFO] running `Command { std: "docker" "start" "-a" "ae57b78bf9198dfd0daca517f181f559c6b5298cd2f9f9d3ae0cec5aea53fec3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking latexdef v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/run.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | / quick_error! {
[INFO] [stdout] 46 | |     #[derive(Debug)]
[INFO] [stdout] 47 | |     pub enum RunError {
[INFO] [stdout] 48 | |         FailedToStart(engine: String) {
[INFO] [stdout] ...  |
[INFO] [stdout] 67 | |     }
[INFO] [stdout] 68 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 4.67s
[INFO] running `Command { std: "docker" "inspect" "ae57b78bf9198dfd0daca517f181f559c6b5298cd2f9f9d3ae0cec5aea53fec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae57b78bf9198dfd0daca517f181f559c6b5298cd2f9f9d3ae0cec5aea53fec3", kill_on_drop: false }`
[INFO] [stdout] ae57b78bf9198dfd0daca517f181f559c6b5298cd2f9f9d3ae0cec5aea53fec3