[INFO] fetching crate cargo-commander 2.0.15...
[INFO] checking cargo-commander-2.0.15 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cargo-commander 2.0.15 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cargo-commander 2.0.15 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 cargo-commander 2.0.15
[INFO] finished tweaking crates.io crate cargo-commander 2.0.15
[INFO] tweaked toml for crates.io crate cargo-commander 2.0.15 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-commander 2.0.15 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1fcdb92304eb246383a79608085007dc060036f0801f4847ee0ab865f3a4fbdb
[INFO] running `Command { std: "docker" "start" "-a" "1fcdb92304eb246383a79608085007dc060036f0801f4847ee0ab865f3a4fbdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fcdb92304eb246383a79608085007dc060036f0801f4847ee0ab865f3a4fbdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcdb92304eb246383a79608085007dc060036f0801f4847ee0ab865f3a4fbdb", kill_on_drop: false }`
[INFO] [stdout] 1fcdb92304eb246383a79608085007dc060036f0801f4847ee0ab865f3a4fbdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] eed9d299f9433f9e60985adc01e7487e7f2e00db0bad0f55316159f288487aaa
[INFO] running `Command { std: "docker" "start" "-a" "eed9d299f9433f9e60985adc01e7487e7f2e00db0bad0f55316159f288487aaa", kill_on_drop: false }`
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[INFO] [stdout] warning: fields `load_dotenv`, `prefix`, `suffix`, `shell`, and `file_handles` are never read
[INFO] [stdout]   --> src/command.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Command {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub load_dotenv: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub prefix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     // Command to run after all other commands, e.g. for cleanup
[INFO] [stdout] 33 |     pub suffix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub shell: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 38 |     // File handles that need to stay open for the duration the command exists
[INFO] [stdout] 39 |     pub file_handles: Vec<NamedTempFile>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `load_dotenv`, `prefix`, `suffix`, `shell`, and `file_handles` are never read
[INFO] [stdout]   --> src/command.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Command {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub load_dotenv: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub prefix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     // Command to run after all other commands, e.g. for cleanup
[INFO] [stdout] 33 |     pub suffix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub shell: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 38 |     // File handles that need to stay open for the duration the command exists
[INFO] [stdout] 39 |     pub file_handles: Vec<NamedTempFile>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.28s
[INFO] running `Command { std: "docker" "inspect" "eed9d299f9433f9e60985adc01e7487e7f2e00db0bad0f55316159f288487aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eed9d299f9433f9e60985adc01e7487e7f2e00db0bad0f55316159f288487aaa", kill_on_drop: false }`
[INFO] [stdout] eed9d299f9433f9e60985adc01e7487e7f2e00db0bad0f55316159f288487aaa
[INFO] checking cargo-commander-2.0.15 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate cargo-commander 2.0.15 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate cargo-commander 2.0.15 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 crates.io crate cargo-commander 2.0.15
[INFO] finished tweaking crates.io crate cargo-commander 2.0.15
[INFO] tweaked toml for crates.io crate cargo-commander 2.0.15 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-commander 2.0.15 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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 860f809787a9d3bbf786dbc89b788fd0cb5ea55e92c635cfb1adb947f714f32a
[INFO] running `Command { std: "docker" "start" "-a" "860f809787a9d3bbf786dbc89b788fd0cb5ea55e92c635cfb1adb947f714f32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "860f809787a9d3bbf786dbc89b788fd0cb5ea55e92c635cfb1adb947f714f32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860f809787a9d3bbf786dbc89b788fd0cb5ea55e92c635cfb1adb947f714f32a", kill_on_drop: false }`
[INFO] [stdout] 860f809787a9d3bbf786dbc89b788fd0cb5ea55e92c635cfb1adb947f714f32a
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 849f3b7a0fd58344a04da4b0beb5358a59fc3314189c75e3c6f9a3672dd47225
[INFO] running `Command { std: "docker" "start" "-a" "849f3b7a0fd58344a04da4b0beb5358a59fc3314189c75e3c6f9a3672dd47225", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling indexmap v1.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.80
[INFO] [stderr]    Compiling cargo-commander v2.0.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking reqwest v0.11.11
[INFO] [stdout] warning: fields `load_dotenv`, `prefix`, `suffix`, `shell`, and `file_handles` are never read
[INFO] [stdout]   --> src/command.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Command {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub load_dotenv: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub prefix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     // Command to run after all other commands, e.g. for cleanup
[INFO] [stdout] 33 |     pub suffix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub shell: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 38 |     // File handles that need to stay open for the duration the command exists
[INFO] [stdout] 39 |     pub file_handles: Vec<NamedTempFile>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `load_dotenv`, `prefix`, `suffix`, `shell`, and `file_handles` are never read
[INFO] [stdout]   --> src/command.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Command {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub load_dotenv: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub prefix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 32 |     // Command to run after all other commands, e.g. for cleanup
[INFO] [stdout] 33 |     pub suffix: Vec<Command>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub shell: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 38 |     // File handles that need to stay open for the duration the command exists
[INFO] [stdout] 39 |     pub file_handles: Vec<NamedTempFile>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.13s
[INFO] running `Command { std: "docker" "inspect" "849f3b7a0fd58344a04da4b0beb5358a59fc3314189c75e3c6f9a3672dd47225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849f3b7a0fd58344a04da4b0beb5358a59fc3314189c75e3c6f9a3672dd47225", kill_on_drop: false }`
[INFO] [stdout] 849f3b7a0fd58344a04da4b0beb5358a59fc3314189c75e3c6f9a3672dd47225